©
2001 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR3606
September 2001
345B Series II Excavator
Electrical System
CCC1-UP
A
3
5
6
8
9
10
11
12
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
35
33
34
7
F
A
3
4
5
6
7
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
35
33
34
7
F
Machine Harness Connector And Component Locations
Connector Location
Connector Number
Schematic
Location
Machine
Location
CONN 1 A-12 16
CONN 2 B-11 26
CONN 3 C-11 26
CONN 4 C-11 26
CONN 5 C-11 26
CONN 6 C-11 26
CONN 7 A-11 35
CONN 8 E-10 D
CONN 9 F-10 D
CONN 10 F-10 D
CONN 11 G-10 D
CONN 12 G-10 D
CONN 13 G-10 D
CONN 14 G-10 D
CONN 15 G-10 D
CONN 16 F-9 D
CONN 17 F-9 D
CONN 18 E-9 D
CONN 19 D-9 D
CONN 20 C-9 D
CONN 21 ET & ECAP CONN G-7 D
CONN 22 A-6 15
CONN 23 C-6 7
CONN 24 C-5 7
CONN 25 C-5 7
CONN 26 C-5 F
CONN 27 C-4 F
CONN 28 C-4 F
CONN 29 F-5 C
CONN 30 F-5 C
CONN 31 F-5 C
CONN 32 F-5 C
CONN 33 F-5 C
CONN 34 F-5 C
CONN 35 F-4 C
CONN 36 F-4 C
CONN 37 F-4 C
CONN 38 H-6 F
CONN 39 H-6 F
CONN 40 H-6 F
CONN 41 H-6 F
CONN 42 H-6 14
CONN 43 H-6 14
CONN 44 H-6 14
CONN 45 H-5 B
CONN 46 H-5 B
CONN 47 H-4 B
CONN 48 H-4 B
CONN 49 H-4 B
CONN 50 H-4 B
CONN 51 H-3 B
CONN 52 H-2 B
CONN 53 FACTORY ADJ CONN D-2 F
CONN 54 B-3 33
CONN 55 B-3 33
CONN 56 A-2 6
CONN 57 A-3 6
The connectors shown in this chart are for harness to harness connectors.
Connectors that join a harness to a component are generally located at or near th
e
component. See the Component Location Chart.
Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Alarm - Travel B-7 1 Sensor - O.W.D.
B-2
8
Alternator E-11 2 Sensor - Fuel Temperature B-12 21
Sensor - Intake Manifold Air Temperature B-12 17
Batteries - 12VDC I-11 3
Sensor - Oil Pressure B-12 18
Breaker - Alternator G-7 D
Sensor - Pump Discharge Press B-7 19
Breaker - Main G-8 D
Solenoid - A/C Clutch E-11 22
Buzzer - Autolube
H-4
35
Solenoid - Aux Pilot Man AC1
I-8 14
Buzzer - Q.C.
H-4
35
Solenoid - Aux Pilot Man AC2
I-8 14
Buzzer Switch Assembly
H-2
31
Solenoid - Aux Pedal On/Off E-1 F
Control - Engine A-12 5
Solenoid - Eng/Pump Control A-8 4
Control - Engine/Pump F-2 C
Solenoid - Fan Speed Control A-10 35
Control - O.W.D.
H-5
A
Solenoid - Fine Swing (ATCH) E-7 14
Controller - Aux/Hyd (ATCH)
I-9
4
Solenoid - Flow Control
I-8 14
Controller - Wiper/Washer C-1 E
Solenoid - Hammer 2 (On/Off)
I-6 14
Converter - Voltage C-6 A
Solenoid - High Pressure (A2)
B-1 32
Diode - Main Relay G-7, H-7 D
Solenoid - High Pressure (A3)
B-1 32
Fuses I-4 B
Solenoid - Hydraulic Lock E-11 F
Ground - Cab B-5 7
Solenoid - Level Finish A-8 4
Ground - Chassis B-3 8
Solenoid - Line Cut Off
C-8 14
Ground - Chassis A-8 34
Solenoid - Low Pressure (A1)
B-2 32
Ground - Platform E-1 E
Solenoid - Medium Press R1 / R2
I-7 14
Ground - Platform H-1 G
Solenoid - Select Mod. Valve
C-8 14
Ground - Relay Panel F-8 D
Solenoid - Start Aid (ATCH) G-12 23
Ground Strap - Chassis to Platform I-6 10
Solenoid - Swing Brake B-8 14
Horn A-1 8
Solenoid - Travel Speed A-8 4
Indicator (ATCH) C-5 A
Solenoid - Trenching A-8 4
Indicator - Add Lube Switch Assembly
H-3
E
Solenoids - Injectors 1-6 A-11 24
Indicator - Level
H-2
E
Switch - Air Cleaner Flow G-12 25
Lamp - Boom (ATCH) B-1 33
Switch - Aux Backup
D-2 C
Lamp - Cab C-6 12
Switch - Aux Pressure
I-7 B
Lamp - Chassis
A-2
12
Switch - Auxiliary (ATCH)
D-3 C
Lighter C-2 E
Switch - Backup EPR Valve D-6 C
Meter - Service C-2 E
Switch - Backup Governor D-5 C
Monitor C-3 E
Switch - Backup Throttle Switch
D-6 C
Motor - Washer I-12 D
Switch - Boom Raise Pressure B-7 C
Motor - Lower Wiper D-1 11
Switch - Coolant Level G-12 23
Motor - Starter D-12 9
Switch - Disconnect G-9 D
Motor - Upper Wiper B-6 12
Switch - Engine Oil Level E-11 26
Pump - Auto Lube
F-12 13
Switch - Fine Swing Cont (ATCH) D-4 C
Pump - BIO (ATCH)
H-12 14
Switch - Hi Pressure Detection
H-3 31
Pump - Refueling (ATCH)
A-2 6
Switch - Hyd Tank Press B-5 27
Radio - 12VDC I-2 A
Switch - Hydraulic Control (ATCH) D-4 C
Relays - Auto Lube 1, 2 &3
C-7 D
Switch - Hydraulic Oil Filter A-5 15
Relay - Aux/Backup (ATCH)
H-9
4
Switch - Hydraulic Oil Level A-5 15
Relay - Boom Lamp E-7 D
Switch - Implement Pressure B-7 14
Relay - Cab Lamp E-7 D
Switch - Joystick (LH) I-1 B
Relay - Chassis Lamp
F-7
D
Switch - Joystick (RH) F-2 C
Relay - Disable
G-9
D
Switch - Key E-2 C
Relay - Down
G-8
D
Switch - Neutral Start Limit H-5 B
Relay - Horn E-7 D
Switch - O.W.D (ATCH)
D-5 C
Relay - Hydraulic Lock Solenoid F-7 D
Switch - Pressure
I-7 14
Relay - Main D-8 D
Switch - Prox
I-7 14
Relay - Neutral Start D-7 D
Switch - Refrigerant Low Press E-11 23
Relay - Refueling Power (ATCH) A-2 6
Switch - Refueling Level (ATCH) A-4 28
Relay - Refueling Start (ATCH) A-3 6
Switch - Refueling Pump N.C. (ATCH) A-4 6
Relay - Refueling Stop (ATCH) A-3 6
Switch - Refueling Pump N.O. (ATCH) A-3 6
Relay - Start C-8 D
Switch - Rotary
H-3 31
Relay - Timer D-7 D
Switch - Rotating Beacon (ATCH)
D-3 C
Relay - Up/Down 1
G-8
D
Switch - Seat Heater (ATCH)
D-4 C
Relay - Up/Down 2
G-8
D
Switch - Smart Boom
D-4 C
Resistor - Backup F-7 D
Switch - Start Aid (ATCH) D-5 C
Resistor - Main Relay
D-8 D
Switch - Start Aid Coolant Temp E-11 18
Seat With Seat Heater (ATCH)
F-4
C
Switch - Suction Line Shutoff Limit A-7 15
Sender - Hydraulic Oil Temp A-5 15
Switch - Throttle Position E-2 C
Sensor - A/C Photo C-3 E
Switch - Travel Pressure B-7 14
Sensor - ATM Pressure B-12 16
Switch - Windshield
C-2 E
Sensor - Boost Pressure B-12 17
Switch - Windshield Warming (ATCH)
D-3 E
Sensor - Coolant Temperature B-12 18
Switch Panel F-2 C
Sensor - Engine Speed/Tmg D-11 18
Unit - A/C H-3 29
Sensor - Fuel Level A-4 20
Machine location are repeated for components located close together.
A = Located inside of cab. E = Located in monitor area.
B = Located in operator's left console area. F = Located around pilot manifold.
C = Located in operator's right console area. G = Located under platform.
D = Located around relay panel.
Wire Description
Wire
Number
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Lighting Circuits
101 RD Bat (+) 607 PK Chassis Lamp
103 RD Dome Lamp 615 YL Cab Lamp
105 RD Key Switch 616 BU ATCH Boom Lamp
109 RD Alt Output (+) Term. 633 BU Converter Light Out (DC 12V)
110 RD Timer Relay 638 WH ATCH Rotating Beacon Lamp
111 RD Timer Relay Output 1 A601 YL Buzzer Sw To Auto - Lube Relay 3
112 PU Main Power Rly Output Control Circuits
113 OR Opr Mon Panel B (+) Switched 763 BU Travel Speed Sol
114 RD Warning Horn (Forward) 779 WH Low Pressure Sol (A1)
115 PK Cab Lamp 780 PU High Pressure Sol (A3)
116 BR A/C Relay Output 786 GN Boom Lamp Relay
118 GY Washer/Wiper 788 YL Engine Speed Pickup (+)
120 YL 12V 5A Socket 791 PK Chassis Lamp Relay
124 GN A/C / Heater A701 GY Injector Sol 1
129 BU Cigar Lighter A702 PU Injector Sol 2
135 BU 12V Converter Switched Output A703 BR Injector Sol 3
138 GN Auto - Lube Relay Output A704 GN Injector Sol 4
139 OR Converter 12V Mem Output A705 BU Injector Sol 5
140 BU Lubricator A706 GY Injector Sol 6
147 PU Fine Swing A746 PK Boost Pressure Sensor
149 PU Boom Lamp A747 GY ATM Pressure Sensor
150 RD Hyd Lock Sol/Switch A751 YL Fuel Temp Sensor
151 GN Neut Start Limit Sw to Hyd Lock Sol Rly A755 PK Throttle Pos Switch 1
152 BU ATCH Aux Switches A756 BU Throttle Pos Switch 2
154 RD Neut Start Limit Sw to Neut Start Rly A757 GY Throttle Pos Switch 3
159 RD A/C Relay A758 BR Throttle Pos Switch 4
160 PU Chassis Lamp A762 PU Engine Speed Pickup (-)
168 RD Refueling Pump A768 BU E/P Cont Sol
176 YL Aux Ckt A769 GY E/P Cont Sol
177 RD Breaker 1 A770 PK Backup Resistor
179 BU Overload Warning Device (O.W.D.) A771 PU Implement Switch
180 GN ATCH BIO Pump D789 WH Injector Com 1 & 2
185 YL Backup EPR Valve Switch D790 OR Injector Com 3 & 4
189 RD Timer Relay Output 2 D791 YL Injector Com 5 & 6
191 WH Aux Backup Switch E793 BU ATCH Data Link (-)
196 BU Insp Lamp E794 YL ATCH Data Link (+)
198 PK Joystick (RH/LH) E799 BR Fan Sol Com
Ground Circuits F700 BU Fan Cont Sol
200 BK Chassis Ground F701 BR Spare
201 BK Monitor Ground F702 GN Spare
210 BK Converter Ground F704 OR Spare
235 BK E/P Cont Ground F713 OR Spare
Basic Machine Circuits F714 PK Spare
304 WH Starter Relay Output F717 YL Accel
306 GN Starter Relay Coil F718 BU Decel
307 OR Key Switch to Start Aid Switch M743 GN Disable Sw To Relay
308 YL Main Power Rly Coil M744 PK Smart Boom Sw To Up/Down Relay 1
310 PU Start Aid Sol M746 YL Up/Down Relay 1 & 2
311 WH Start Aid Coolant Temp Switch M747 PU Down Relay
315 GN Start Aid Switch M748 OR Line Cut Off Sol
320 RD Horn Sw to Horn Relay M749 WH Select Mod. Valve
321 BR Travel Alarm 801 PK Hi Press Detection Sw To Auto - Lube Relay
322 GY Horn Relay to Horns 802 YL Auto-Lube Pump To Add Lube Indicator
323 WH Refueling Power Relay To Refueling Pump 892 BR Cat Data Link (-)
325 PK Refueling Level Sw To Refueling Pump Sw (N.C.) 893 GN Cat Data Link (+)
329 YL Refueling Stop Rly To Refueling Power Rly A847 YL Medium Pressure Sol R2
330 YL Jumper From Neutral Start Rly To Start Rly A848 PK Medium Pressure Sol R1
365 YL Refueling Pump Sw (NC) To Refueling Relays A849 OR Flow Control Sol
370 BU Auto - Lube Relay 3 To Buzzer A850 WH Flow Control Sol
386 PK Neutral Start Relay Output F846 PU Prox Switch
Monitoring Circuits G848 GN Rocker Switch CSL
403 GN Alternator R Term 950 BR Aux Pilot Man AC1 Sol
412 BU Coolant Level Switch 951 PK Hammer 2 Sol (ON/OFF)
430 BU Air Cleaner Switch 952 OR Pressure Switch
439 YL Hyd Tank Indicator 954 GN Hammer Pressure Switch
491 PK Hyd Oil Temp Sender 955 BU Prox Switch
495 GN Fuel Level Sensor 961 BR ATCH Aux Hyd Cont Switch
496 WH Hyd Oil Level Switch 993 BR Sensor Common
499 GY Hyd Oil Filter Switch Power 994 GY Oil Pressure Sensor
A424 WH O.W.D. Signal In 995 BU Coolant Temp Sensor
A425 YL O.W.D. Signal Out 996 GN V+ Eng SP/TMG
A499 BU Hyd Tank Pressure Switch 997 OR Engine Control +5V
C468 BU Engine Oil Level Switch 998 BR Engine SP/TMG Common
E455 BR Hyd Oil Filter Signal 999 WH Engine SP/TMG Sensor
F400 GY Engine Oil Pressure Switch C912 GN Throttle
G438 PK Add Lube Switch To Lube Pump C967 BU Intake Manf Air Temp
G457 PK Auto-Lube Relay To Buzzer E985 BR Auto-Lube Pump To Level Indicator
Accessory Circuits K904 GN Front Pump Pressure Sensor
500 BR Windshield Switch To Wiper Cont K905 RD E/P Cont Power
501 GN Wiper Lo K906 GN Swing Brake Sol
506 PU Washer Motor K907 BU Backup EPR Valve Switch To E/P cont
508 PU Speaker LH + K909 BU Backup EPR Valve Sw To Backup Resistor
509 WH Speaker LH - K911 PK RS485 + (Monitor)
511 BR Speaker RH + K912 GN RS485 - (Monitor)
512 GN Speaker RH - K915 GN Fine Swing Switch
513 OR A/C Clutch Sol K973 BR Throttle Pos Sw 1 From E/P Cont To Aux Hyd Cont
521 YL Refrigerant Low Pressure Sw To A/C Unit K974 PU Throttle Pos Sw 2 From E/P Cont To Aux Hyd Cont
524 BU Wiper Cont Output To Lower Wiper Motor K975 WH Throttle Pos Sw 3 From E/P Cont To Aux Hyd Cont
546 BU Joystick (LH) - Left Switch K976 OR Throttle Pos Sw 4 From E/P Cont To Aux Hyd Cont
547 OR Joystick (LH) - Right Switch K997 BU Monitor +B Out
548 GY Joystick (RH) - Left Switch L908 OR RS232C (TX)
549 PK Joystick (RH) - Right Switch L909 BU RS232C (RX)
575 YL ATCH Aux Switch L968 OR EPR Valve (-)
576 PK ATCH Aux Switch L969 WH EPR Valve (+)
578 BU ATCH Warming Windshield Switch L970 GY Option Pressure Switch
585 YL Aux Pilot Man AC2 Sol L971 GN Travel Switch
586 BR O.W.D. Console Switch To Cont L972 BU Low Idle Switch
590 GY Wiper Int. L973 GN Not Used
A537 PK ATCH Seat Heater Switch L974 GN Boom Raise Pressure Switch
A586 OR Wash Switch L976 GN Refueling Pump Sw (NO) To Refueling Relays
A587 YL Rotary Switch To Hyd Lock Sol Relay L977 YL Level Finish Sol
A588 GN Hyd Lock Relay To Sol L978 GY Trenching Sol
C532 GN Auto - Lube Hi Pressure Detection N919 GN Throttle Sw 1 From Backup Rly To Aux Hyd Cont
C537 GN A/C Photo Sensor (Y/W) N920 BU Throttle Sw 2 From Backup Rly To Aux Hyd Cont
C538 OR A/C Photo Sensor (Y/G) N921 YL Throttle Sw 3 From Backup Rly To Aux Hyd Cont
N922 OR Throttle Sw 4 From Backup Rly To Aux Hyd Cont
N923 GY Aux Pedal On/Off Sol
N924 WH Aux Backup Switch
8630 BU ATCH Rotating Beacon Switch
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
106-0179
Travel Pressure
Implement Pressure
Pressure
1520 ± 98 kPa
(220.5 ± 14.2 psi)
1127 kPa MIN
(163.5 psi MIN)
Normally Open
106-0180 Boom Raise Pressure
2646 ± 196 kPa
(383.8 ± 28.4 psi)
2156 ± 196 kPa
(312.7 ± 28.4 psi)
Normally Open
107-0615 Hyd Tank Pressure
48 ±14 kPa
(7 ± 2 psi)
24 kPa MIN
(3.5 psi MIN)
Normally Closed
114-5333 Refrigerant Low Pressure
275 kPa
(39.9 psi)
170 kPa ¹
(24.7 psi)
Normally Open
131-9203 Aux Pressure
3500 kPa MAX
(507.6 psi MAX)
3000 ± 150 kPa
(435.1 ± 21.8 psi)
Normally Open
162-6208 Air Cleaner 635 ± 58 mm H2O
_
Normally Open ²
3E-6425 Start Aid Coolant Temp
38 ± 3°C
(100.4 ± 37.4°F)
27°C MIN
(80.6°F MIN)
Normally Closed
¹ A hysteresis band exists: with increasing pressure the closed condition can be maintained up to
2800 kPa (405 psi), with decreasing condition can be maintained down to 170 kPa (25 psi).
² Contact position at the contacts of the harness connector.
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
102-8017 Resistor -
Backup
Main Relay
52.0 ± 2.6
111-9916 Solenoid -
Eng/Pump Control
Flow Control
11.7 ± 1.2
121-1490
Solenoid -
Level Finish
Line Cut Off
Trenching
32.0 ± 3.2
121-1491 Solenoid -
A/C 1 (ON/OFF)
A/C 2 (ON/OFF)
Hyd Lock
Low Pressure (A1)
Swing Brake
Select Mod. Valve
Travel Speed
32.0 ± 3.2
163-6616 Resistor - ATCH Main Relay 48.0 ± 2.4
3E-6332 Solenoid - Start Aid ATCH 6.0
4I-5394 Sender - Hyd Oil Temp 6130 to 7500
¹ At room temperature unless otherwise noted.
Code Description of Problems
1301 Engine oil pressure is too low.
1302 Engine coolant temperature is too high.
1303 Hydraulic oil temperature is too high.
1304 Air filter is clogged.
1305 Battery voltage is not normal.
2201 Governor actuator feedback sensor circuit is open or shorted to battery voltage.
2202 Governor actuator feedback sensor circuit is shorted to body ground.
2301 Governor actuator feedback signal is not stable.
2302 Governor actuator feedback signal deviates.
2303 Governor actuator does not move.
2304 Calibration data error.
3201 Monitor RAM is not normal.
4101 Electric power supply to the controller is too much (43 volts).
4102 Over-current in proportional reducing valve.
4103 Proportional reducing valve circuit is open.
4104 Monitor power supply (digital output) over current.
4105 Over-current in digital output (trenching solenoid).
4106 Over-current in digital output (fine control solenoid).
4107 Over-current in digital output (travel speed change solenoid).
4108 Over-current in digital output (travel alarm).
4109 Spare solenoid 1 (digital output) over current.
410A Over-current in digital output (swing brake solenoid).
4201 Engine speed is not normal.
4202 Engine coolant temperature sensor is shorted to body ground.
4203 Hydraulic oil temperature sensor is shorted to body ground.
4204 PWM sensor of pump delivery pressure is shorted to body ground.
4205 Spare PWM sensor 1 is shorted to body ground.
4206 Spare PWM sensor 2 is shorted to body ground.
4207 PWM sensor of pump delivery pressure is open in circuit.
420A Fuel sensor is shorted to body ground
420B Fuel sensor is open or shorted to battery voltage.
420C Electric power supply is to low (below 23 volts).
420D Electric power supply is to high (above 32 volts).
420E Engine speed dial is not in one of the 10 specified positions.
4301 Data mismatch 1 between alternator and speed sensor (alternator is abnormal).
4302 Data mismatch 2 between alternator and speed sensor (speed sensor is abnormal).
4303 Engine stalls.
A201 Monitor communication is not normal.
A202 Monitor takes too much time to respond to controller's signal.
A203 Communication is abnormal in controller.
A20D ADEM Communication Disconnect
Real Time Error Codes
Component Identifiers (CID¹) For
Engine Control (MID² No. 036) and
Engine/Pump Control (MID² No. 105)
CID Component
0001 Cylinder 1
0002 Cylinder 2
0003 Cylinder 3
0004 Cylinder 4
0005 Cylinder 5
0006 Cylinder 6
0091 Throttle Signal Abnormal
0096 Fuel Level Sensor
0100 Oil Pressure Signal
0110 Coolant Temperature Signal
0167 Alternator Charging Sensor
0168 Electrical System Voltage
0172 Inlet Air Temperature Signal
0174 Fuel Temperature Signal
0190 Engine RPM Signal
0253 Personality Mode
0261 Timing Calibration
0262 Analog Sensor Supply
0267 Shutdown Input Signal
0268 Programmable Parameters
0273 Boost Pressure Signal
0274 Atmospheric Pressure Signal
0286 Oil Lamp
0374 Swing Brake Solenoid
0376 Travel Alarm
0581 Proportional Reducing Valve
0582 Air Filter/Engine Oil Pressure
0583 Boom Raise Solenoid
0586 Invalid Engine Speed
0587 Calibration Data Error/Governor Actuator Signal
0588 Monitor Communications
0597 PWM Sensor
0598 Travel Speed Solenoid
0600 Hydraulic Oil Temperature Signal
0688 VHP Solenoid
0763 Controller Communications
¹ The CID is a diagnostic code that indicates which component is faulty.
² The MID is a diagnostic code that indicates which electronic control module
diagnosed the fault.
Failure Mode Identifiers (FMI)¹
FMI No. Failure Description
0 Data valid but above normal operational range.
1 Data valid but below normal operational range.
2 Data erratic, intermittent, or incorrect.
3 Voltage above normal or shorted high.
4 Voltage below normal or shorted low.
5 Current below normal or open circuit.
6 Current above normal or grounded circuit.
7 Mechanical system not responding properly.
8 Abnormal frequency, pulse width, or period.
9 Abnormal update.
10 Abnormal rate of change.
11 Failure mode not identifiable.
12 Bad device or component.
13 Out of calibration.
14 Parameter failures.
15 Parameter failures.
16 Parameter not available.
17 Module not responding.
18 Sensor supply fault.
19 Condition not met.
20 Parameter failures.
¹The FMI is a diagnostic code that indicates what type of failure has occurred.
Code Description of Problems
B101 Cylinder 1 open circuit.
B102 Cylinder 1 short.
B103 Cylinder 2 open circuit.
B104 Cylinder 2 short.
B105 Cylinder 3 open circuit.
B106 Cylinder 3 short.
B107 Cylinder 4 open circuit.
B108 Cylinder 4 short.
B109 Cylinder 5 open circuit.
B10A Cylinder 5 short.
B10B Cylinder 6 open circuit.
B10C Cylinder 6 short.
B10D Throttle switch inputs are incorrect.
B10E Oil pressure open/short to + battery.
B10F Oil pressure short to ground.
B110 Oil pressure calibration required.
B111 Coolant temperature open/short to + battery.
B112 Coolant temperature short to ground.
B113 Battery voltage above normal.
B114 Battery voltage below normal.
B115 Loss of engine rpm signal.
B116 Analog sensor supply short to + battery.
B117 Analog sensor supply short to ground.
B118 Digital sensor supply short to + battery.
B119 Digital sensor supply short to ground.
B11A Shutdown inputs are incorrect.
B11B Turbo out pressure open/short to + battery.
B11C Turbo out pressure short to ground.
B11D Turbo out pressure calibration required.
B11E Atmospheric pressure open/short to + battery.
B11F Atmospheric pressure short to ground.
B120 Atmospheric pressure calibration.
B121 Check programmable parameters.
B122 Timing calibration required.
B123 Hydraulic oil temperature open/short to + battery.
B124 Hydraulic oil temperature signal short to ground.
B200 ADEM unknown error.
Engine Control Real Time Error Codes
Related Electrical Service Manuals
Form Number
Alternator: 3E-7577
RENR1252
Electric Starting Motor: 6V-0890
SENR3860
Engine/Pump Control: 126-2973
RENR1999
Engine Control:
RENR1235
Starting and Charging:
SENR1936
Title
A AA
1
2
325-PK-14
200-BK-14
T
This indicates that the component does not have a wire connected to ground. It is
grounded by being fastened to the machine.
This indicates that the component has a wire connected to it that is connected to ground.
105-9344
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
Pin
Socket
Fuse
Component
Part Number
Pin or Socket
Number
Receptacle
Plug
Wire Gauge
Wire, Cable, or Harness
Assembly Identification
Wire Color
Normally closed switch that will open with an increase of a specific condition.
No circle indicates that the wire cannot be disconnected from the component.
Single Wire
Connector
Circuit Number
Identification
Ground
Connection
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
Reed Switch - A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
Sender- A component that is used with a temperature or pressure gauge. The sender
measures the temperature or pressure. Its resistance changes to give an indication to
the gauge of the temperature or pressure.
Relay (Magnetic Switch) - A relay is an electrical component that is activated by electricity.
It has a coil that makes an electromagnet when current flows through it. The
electromagnet can open or close the switch part of the relay.
Solenoid - A solenoid is an electrical component that is activated by electricity. It has a
coil that makes an electromagnet when current flows through it. The electromagnet
can open or close a valve or move a piece of metal that can do work.
Harness And Wire Symbols
Electrical Schematic Symbols And Definitions
1
1
2
2
Typical representation of a Sure-Seal
connector. The plug and receptacle
contain both pins and sockets.
Typical representation of a Deutsch
connector. The plug contains all
sockets and the receptacle contains
all pins.
JJ
A A
A
D
BA
386-PK
L14
A588-GN-18
A588-GN-18
306-GN
200-BK-18
200-BK-10
168-RD-18
325-PK-18
365-YL-18
L976-GN-18
365-YL-18
329-YL-18
329-YL-18
323-WH-10
168-RD-10
168-RD-10
329-YL-18
323-WH-10
365-YL-18
168-RD-18
168-RD-18
168-RD-18
168-RD-18
168-RD-18
L976-GN-18
L976-GN-18
L976-GN-18
365-YL-18
L976-GN-18
L976-GN-18
200-BK-14
P
XX
1
2
UU
U
ATCH
REFUELING
PUMP SW(NO)
6T-9442
P
T
TT
ATCH
REFUELING
PUMP SW(NC)
9X-4184
P
1
2
ATCH
REFUELING
POWER RELAY
165-4026
P
2
1
DIODE
121-1022
ATCH
REFUELING
START RELAY
149-5050
ATCH
REFUELING PUMP
165-1436
P
P
+
-
1
2
ATCH
REFUELING
STOP RELAY
149-5050
X
P
B
L60
L60
C532-GN
138-GN
E985-BR
140-BU
G457-BR
200-BK
L59
G457-PK
G457-PK
200-BK
PUMP DISCHARGE
PRESS SENSOR
106-0178
SIGNAL
GROUND
+B
BK-18
BR-18
YL-18
B
C
B
A
K997-BU-18
K904-GN-18
200-BK-18
4
5
2
3
8
6
1
7
11
12
9
10
B
200-BK
L58
AUTO-LUBE
RELAY 3
149-5050
138-GN
200-BK
200-BK
BK
BK
BR
PK
N
P
4334
P
NN
P
43
C
A
B
152-BU
386-PK
306-GN
116-BR-14
159-RD-14
200-BK-18
308-YL-18
306-GN
308-YL
386-PK
307-OR
638-WH
308-YL
308-YL-18
8630-BU-18
112-PU-18
607-PK
322-GY
ATCH BEACON
RELAY
200-BK-18
322-GY
114-RD
304-WH-8
308-YL
308-YL-18
200-BK
200-BK-18
177-RD-4
112-PU-4
RELAY PANEL
111-RD-14
308-YL
154-RD-18
101-RD-4
114-RD-18
114-RD-18
177-RD-4
304-WH-8
K909-BU-18
110-RD-14
109-RD-8
200-BK-18
200-BK-18
200-BK-18
308-YL
189-RD-14
109-RD-4
109-RD-8
320-RD-18
616-BU
892-BR-18
893-GN-18
E794-YL-18
E793-BU-18
BUS-BAR
177-RD-4
177-RD-4
159-RD-14
159-RD-14
160-PU
160-PU
160-PU
160-PU
160-PU-18
308-YL-18
308-YL
116-BR-14
200-BK-18
200-BK-18
306-GN
306-GN
386-PK
386-PK
307-OR
307-OR
307-OR
308-YL
308-YL-18
308-YL-18
6
5
1
2
3
4
7
F700-BU
E799-BR
8F701-BR
T920-YL
F714-PK
F704-OR
F702-GN
F713-OR
E799-BR
F700-BU
159-RD-14
112-PU-18
200-BK-18
116-BR-14
116-BR-14
111-RD-14
177-RD-4
177-RD-4
112-PU-4
112-PU-4
112-PU-4
791-RD-18
791-RD-18791-RD-18
151-GN-18
791-RD-18
ATCH
AM/FM RADIO
OPERATOR STATION
L18
L3
L18
L3
L19
L21
L20
893-GN-18
L15
NEUTRAL START
LIMIT SW
111-4799
L15
L15
YELLOW
L19
J
L20
L21
147-PU-18
786-RD-18786-RD-18
154-RD-18
200-BK-14
200-BK-14
YL
G457-BR-18
154-RD-18
150-RD-18
BK
YL
BR
786-RD-18
150-RD-18
RELAY PANEL
786-RD-18
150-RD-18 111-RD-14
154-RD-18
189-RD-14
200-BK-18
WHITE
196-BU
151-GN-18
109-RD-4
150-RD-18
111-RD-14
L15
110-RD-14
L22
154-RD-18
196-BU
AF
149-PU
149-PU
MM
893-GN-18
892-BR-18
E793-BU-18
E794-YL-18
3
2
4
A
B
C
A751-YL 751-YL
C967-BU
150-RD-18
C967-BU
995-BU
995-BU
994-GY
994-GY
997-OR 97-OR
997-OR
997-OR
997-OR
997-OR
997-OR
993-BR 93-BR
993-BR
993-BR
993-BR
993-BR
993-BR
1
A
802-YL-18
200-BK-18
A747-GY
111-RD-14
34
P
N
PK
RED
YL
BK
BK
GN
PK
GN
A
1
4
2
140-BU
3
549-PK-18
548-GY-18
952-OR-18
954-GN-18
112-PU-4
615-YL
200-BK-14
955-BU-18
A587-YL-18
F846-PU-18
G848-GN-18
L970-GY-18
A747-GY
A746-PK
A746-PK
999-WH
L25
L19
L20
999-WH
998-BR
L3
L19
L20
998-BR
L18
L18
L22
L18
L3
L19
L21
L20
996-GN
K905-RD-14
111-RD-14
150-RD-18
154-RD-18
147-PU-18
996-GN
892-BR-18
N923-GY-14
N923-GY-18
N923-GY-18
198-PK-18
112-PU-14
1
2
5
4
3
6
151-GN-18
J
A
147-PU-18
200-BK
103-RD
A
PLATFORM
ANTENNA
106-0036
120-YL
198-PK-18
198-PK-18
152-BU
152-BU
198-PK-18
198-PK-18
C912-GN-18
198-PK-18
198-PK-18
C532-GN
801-PK
C532-GN
140-BU
200-BK
370-BU
A601-YL
200-BK
G457-PK
G457-PK
AUTO-LUBE
RELAY 1
149-5050
200-BK
138-GN
G457-PK
G457-PK
200-BK
L58
A
370-BU
370-BU
200-BK-18
B
315-GN-18
M747-PU-18
M744-PK-18
M746-YL-18
M743-GN-18
A588-GN-18
575-YL-18
152-BU-18
576-PK-18
118-GY
524-BU
196-BU
N923-GY-18
200-BK-18
A
N923-GY-18
A
PLATFORM
A770-PK-18
200-BK
200-BK-18
LOWER WIPER
MOTOR
131-0398
A
1
2
A588-GN-18
2
1
200-BK-18
C
A
B
607-PK
S
FUSE BASE
111-4812
AUX PEDAL
ON/OFF SOL
118-GY
524-BU
200-BK
200-BK-18
200-BK-18
L14
575-YL-18
152-BU-18
576-PK-18
200-BK-18 2
4
1
3
200-BK-18
CIGAR LIGHTER
9W-0335
EE
E
E
SERVICE METER
6T-7337
-
MONITOR
106-0172
WINDSHIELD SW
9G-2795 (NOTE D)
200-BK-18
E
500-BR-18
E
WIPER CONT
127-9838
WIND SW
GND IN
+ 24 IN
MOT WASH
OUTPUTS
WIPER SW
INTER SW
200-BK-18
500-BR-18
RS485+
MAIN
+B
RS485-
LIGHT
GND
+
E
E
200-BK
CAB
E
L6
201-BK-18
C537-GN-18
C538-OR-18
129-BU-18
506-PU
524-BU
403-GN-18
200-BK-18
590-GY-18
K911-PK-18
1
2
200-BK-18
3
4
5
6
7
8
9
WASH SW
200-BK-18
103-RD-18
201-BK-18
K912-GN-18
501-GN-18
A586-OR-18
615-YL-18
118-GY
200-BK
A
200-BK-14
Y/W
Y/G
K997-BU-18
K905-RD-14
K905-RD-14
235-BK-14
235-BK-14
802-YL-18
G438-PK-18
E985-BR-18
138-GN
C532-GN-18
801-PK-18
A601-YL-18
G457-GR-18
370-BU
370-BU
G457-GR-18
A601-YL-18
801-PK-18
C532-GN-18
B
A
AB
138-GN
E985-BR-18
4
2
3
1
3
116-BR-14
116-BR-14
116-BR-14
116-BR-14
110-RD-14
110-RD-14
110-RD-14
110-RD-14
103-RD
103-RD
103-RD
M747-PU-18
M744-PK-18
A588-GN-18
M743-GN-18
L56
A588-GN-18
M743-GN-18
M746-YL-18
200-BK-18
A588-GN-18
M747-PU-18
A588-GN-18
A588-GN-18
200-BK-18
M746-YL-18
200-BK-18
200-BK-18
200-BK-18
M748-OR-18
M746-YL-18
M746-YL-18
M749-WH-18
M744-PK-18
M744-PK-18
M744-PK-18
M744-PK-18
M744-PK-18
M744-PK-18
M749-WH-18
M748-OR-18
M746-YL-18
M746-YL-18
M744-PK-18
M748-OR-18
M746-YL-18
200-BK-18
M748-OR-18
A588-GN-18
AZA
L55
L55
200-BK-18
M479-WH-18
200-BK-18
M748-OR-18
L55
A588-GN-18
548-GY-18
LINE CUT OFF SOL
121-1490
SELECT. MOD. VALVE
121-1491
M748-OR-18
1
2
AZ
200-BK-18
UP/DOWN RELAY 2
149-5050
200-BK-18
M746-YL-18
M743-GN-18
A588-GN-18
M744-PK-18
6
3
2
1
UP/DOWN RELAY 1
149-5050
DOWN RELAY
149-5050
DISABLE RELAY
149-5050
5
M747-PU-18
4
3
1
M479-WH-18
4
2
5
6
M748-OR-18
M748-OR-18
7
8
135-BU
REFREGERANT
LOW PRESS SW.
114-5333
200-BK-18
513-OR-18
168-RD-10
200-BK-18
WH
A499-BU-18
A499-BU-18
952-OR-18
BK
549-PK-18
N924-WH-18
C
ATCH BIO PUMP
146-9282
PUMP
1
2
B
180-GN-14
200-BK-14
200-BK-18
1
BK
C
103-RD
496-WH-18
BK
499-GY-18
200-BK-18
200-BK-18
491-PK-18
499-GY-18
496-WH-18
103-RD
321-BR-18
310-PU-18
955-GN-18
310-PU-18
430-BU-18
311-WH-18
C538-OR-18
139-OR-18
L40
521-YL-18
311-WH-18
311-WH-18
200-BK-18
430-BU-18
200-BK-18
491-PK-18
200-BK-18
A499-BU-18
210-BK
430-BU-18
K904-GN-18
A769-GY-18
A768-BU-18
L978-GY-18
763-BU-18
L977-YL-18
491-PK-18
496-WH-18
616-BU
495-GN-18
K906-GN-18
L974-GN-18
A771-PU-18
L971-GN-18
322-GY
OR
311-WH-18
310-PU-18
200-BK-14
200-BK-18
2
3
4 4
3
2306-GN-18
OR
OR
OR
OR
OR
GN
1
GN
F846-PU-18
G848-GN-18
GN
YL
N923-GY-18
C538-OR-18
YL
FUSE
5A 139-5345 20A 9W-1446
10A 9W-1442 30A 8T-9636
15A 9W-1441
YL
521-YL-18
WH
WH
198-PK-18
198-PK-18
496-WH-18
200-BK-18
C537-GN-18
C468-BU-18
AB
A768-BU-18
WH
K997-BU-18
521-YL-18
NOTE D: NOT NECESSITY FOR ELECTRIC OPENABLE WINDSHIELD.
THIS SCHEMATIC IS FOR THE 345B-ll EXCAVATOR.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
NOTE B: USE WITH COLD WEATHER.
NOTE F: NOT USE WITH FINE SWING CONT. SW.
N923-GY-14
A587-YL-18
ANTENNA CABLE
111-4846
BK
OR
GROUND STRAP
7G-1060
CHASSIS
PLATFORM
L970-GY-18
2
4
954-GN-18
N923-GY-18
521-YL-18
5
1
6
998-BR-18
K909-BU-18
304-WH-8
103-RD
C468-BU-18
788-YL-18
A762-PU-18
893-GN-18
893-GN-18
6
200-BK-18
C
893-GN-18
892-BR-18
892-BR-18
103-RD
892-BR-18
103-RD
WH-18
WH-18
200-BK-10
WH-18
WH-18
325-PK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
5
6
200-BK-18
4
200-BK-18
3
2
1
521-YL-18
K904-GN-18
200-BK-18
321-BR-18
A499-BU-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
L974-GN-18
A771-PU-18
L971-GN-18
200-BK-18
200-BK-18
311-WH-18
200-BK-18
788-YL-18
A762-PU-18
K906-GN-18
L974-GN-18
A771-PU-18
L971-GN-18
200-BK-18
499-GY-18
235-BK-14
TRAVEL
PRESS SW
106-0179
IMPLEMENT
PRESS SW
106-0179
SWING
BRAKE SOL
121-1491
B
1
2
1
2
2
1
B
TRAVEL SPEED
SOL
121-1491
TRENCHING SOL
121-1490
1
2
LEVEL FINISH
SOL
121-1490
ENG/PUMP CONT
SOL
111-9916
1
2
1
2
B
2
1
BOOM RAISE
PRESS SW
106-0180
B
1
2
B
B
B
B
N923-GY-18
370-BU
200-BK-18
524-BU
118-GY
200-BK-18
315-GN-18
575-YL-18
576-PK-18
200-BK
200-BK
N923-GY-18
A424-WH-18
A425-YL-18
A425-YL-18
954-GN-18
235-BK-14
2
K905-RD-14
L970-GY-18
L970-GY-18
K905-RD-14
114-RD
200-BK-14
200-BK-14
8630-BU-18
200-BK-14
152-BU
180-GN-14
180-GN-14
152-BU
524-BU
118-GY
638-WH
152-BU-18
152-BU
K906-GN-18
952-OR-18
F846-PU-18
955-GN-18
G848-GN-18
N923-GY-18
N923-GY-18
961-BR-18
G848-GN-18
955-GN-18
F846-PU-18
ATCH INDICATOR
143-3421
200-BK-18
F
E
E
5
6
4
2
3
1
A424-WH-18
A425-YL-18
L52
304-WH-8
1
200-BK
101-RD-
4
152-BU
109-RD-4
586-BR-18
CB
B
1
1
12
8
9
2
CB
1
6
5
3
10
11
7
200-BK-18
200-BK-18
200-BK-18
HH
2
1325-PK-18
HH B
521-YL-18
L970-GY-18
120-YL
546-BU-18
547-OR-18
C538-OR-18
C537-GN-18
210-BK
633-BU-18
135-BU
E793-BU-18
L977-YL-18
E793-BU-18
763-BU-18
L978-GY-18
200-BK-18
200-BK-18
K997-BU-18
200-BK-18
200-BK-18
200-BK-18
EE(NOTE B)
AA
E794-YL-18
491-PK-18
495-GN-18
322-GY
616-BU
496-WH-18
K909-BU-18
1
GROUND STRAP
128-8886
2
210-BK
210-BK
615-YL-18
615-YL
135-BU
135-BU
1
120-YL
200-BK
139-OR-18
200-BK-18
3
4
3
200-BK-14
ECM GND STRAP
5
6
7
8
HH
9
F400-GY-18
109-RD-4
308-YL
200-BK
189-RD-14
521-YL-18
308-YL
K909-BU-18
A770-PK-18
412-BU-18
168-RD-10
103-RD
320-RD-18
149-PU
615-YL
A588-GN-18
A587-YL-18
308-YL
200-BK
304-WH-8
135-BU
524-BU
210-BK
200-BK-14
E794-YL-18
10
200-BK-18
G438-PK-18
152-BU-18
200-BK
B
CHASSIS
K904-GN-18
430-BU-18
K906-GN-18
763-BU-18
139-OR-18
152-BU
11
2
10
9
4
499-GY-18
124-GN
3
S
-
633-BU-18
F718-BU-18
147-PU-18
196-BU
K909-BU-18
A587-YL-18
A588-GN-18
791-PK-18
615-YL
786-GN-18
149-PU
320-RD-18
A770-PK-18
CONT. O.W.D.
132-5096
RD-00
+
A
6
A769-GY-18
200-BK-18
A768-BU-18
RD-00
A499-BU-18
200-BK-18
F
8
ENG OIL PRESS F400-GY-18
GND
USER DEFN SHUTDOWN
D789-WH
D789-WH
D790-OR
D790-OR
D790-OR
A701-GY
D791-YL
D791-YL
D789-WH
A706-GY
A706-GY
L4
L3
L25
L19
L20
101-RD-4
A701-GY
109-RD-8
A702-PU
2
A702-PU
1
F
403-GN-18
403-GN-18
403-GN-18
403-GN-18
BAT
L977-YL-18
763-BU-18
L978-GY-18
A768-BU-18
200-BK
A769-GY-18
200-BK-18
590-GY-18
501-GN-18
A586-OR-18
786-GN-18
791-PK-18
113-OR-18
308-YL-18
307-OR-18
105-RD
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
576-PK-18
575-YL-18
578-BU-18
200-BK-18
124-GN-18
K915-GN-18
200-BK-18
586-BR-18
310-PU-18
A769-GY-18
A768-BU-18
K906-GN-18
185-YL-18
K909-BU-18
K907-BU-18
A770-PK-18
200-BK-18
CONSOL SW
MTR
235-BK-18
235-BK-18
308-YL-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
K912-GN-18
K911-PK-18
K915-GN-18
A703-BR
K907-BU-18
403-GN-18
K904-GN-18
496-WH-18
430-BU-18
495-GN-18
491-PK-18
321-BR-18
C468-BU-18
763-BU-18
A762-PU-18
788-YL-18
A771-PU-18
200-BK-14
200-BK-18
A601-YL
370-BU
200-BK-18
200-BK
12
200-BK-14
140-BU
200-BK-18
200-BK-18
200-BK-18
200-BK
A703-BR
200-BK
A850-WH-18
A849-OR-18
C532-GN
200-BK
200-BK-18
200-BK-18
200-BK-18
A704-GN
200-BK
N923-GY-14
A704-GN
11
9
200-BK
E/P CONT
126-2973
C468-BU-18
A705-BU
7
586-BR-18
SENSOR 2
A424-WH-18
200-BK-18
179-BU
C537-GN-18
SENSOR 1
GND
A705-BU
4
5
2
+ 24V
1
3
A425-YL-18
J
N923-GY
177-RD-14
177-RD-14
998-BR-18
L978-GY-18
L974-GN-18
A
114-RD
114-RD
112-PU-4
952-OR-18
S
2
8
6
5
177-RD-14
4
200-BK-18
M748-OR-18
M748-OR-18
200-BK-18
200-BK-18
200-BK-18
M744-PK-18
200-BK-18
200-BK-18
AZ
200-BK-18
200-BK-18
320-RD-18
320-RD-18
320-RD-18
N919-GN-18
N920-BU-18
N924-WH-18
A756-PU-18
34
3
A
547-OR-18
198-PK-18
1
5
4
-
R
D
-
1
8
112-PU-14
112-PU-14
112-PU-14
320-RD-18
1
5
1
-
G
N
-
1
8
L977-YL-18
L3
633-BU-18
N921-YL-18
N922-OR-18
801-PK
C532-GN
140-BU
H
G
I
200-BK-18
35
36
499-GY-18
499-GY-18
X
S
11
12
G
304-WH-8
STARTER
MOTOR
6V-0890
200-BK-18
CHASSIS
C468-BU-18
200-BK-18
MOTOR
3
2
0
-
R
D
-
1
8
L57
CC
A771-PU-18
4
20
22
L38
L57
370-BU
G457-BR
140-BU
C532-GN
892-BR-18
893-GN-18
998-BR-18
F718-BU-18
F717-YL-18
C912-GN-18
2
0
0
-
B
K
-
1
8
A499-BU-18
L45
A
J
5
9
8
2
10
12
11
6
L971-GN-18
G848-GN-18
L46
1
1
5
0
-
R
D
-
1
8
L35
L25
L973-GN-18
3
F846-PU-18
L35
180-GN-14
801-PK
E794-YL-18
E793-BU-18
123-WH-14
23
25
C912-GN-18
K997-BU-18
K997-BU-18
K997-BU-18
138-GN
K997-BU-18
K997-BU-18
L970-GY-18
L971-GN-18
L977-YL-18
L974-GN-18
L978-GY-18
L969-WH-18
L968-OR-18
L972-BU-18
A587-YL-18
189-RD-14
200-BK-18
+ 12V LIGHT
E793-BU-18
E794-YL-18
140-BU
C532-GN
11
12
1
893-GN-18
2
892-BR-18
3
4
5
6
7
8
9
10
513-OR-18
2
200-BK-18
B
109-RD-4
101-RD-4
151-GN-18
200-BK
616-BU
101-RD-4
200-BK-18
101-RD-4
109-RD-4
200-BK-18
L47
110-RD-14
101-RD-4
109-RD-4
A601-YL
321-BR-18
109-RD-8
200-BK-18
304-WH-8
3
ATCH
TRAVEL ALARM
3E-7738
B
1
2
BK/PK
BK
308-YL
308-YL
615-YL
607-PK
4
111-RD-14
115-PK
115-PK
115-PK
115-PK
1
114-RD
114-RD
114-RD
607-PK
607-PK
200-BK-18
200-BK-18
149-PU
607-PK-18
5
6
149-PU-18
149-PU-18
E794-YL-18
E793-BU-18
2
322-GY
DECEL
ACCEL
7
616-BU
A588-GN-18
200-BK-18
3
4
5
5
K997-BU-18
26
27
28
30
A
6
5
6
4
3
1
2
31
32
33
8
2
8
7
4
A
615-YL
320-RD-18
A770-PK-18
154-RD-18
110-RD-14
151-GN-18
196-BU
5
7
12
8
6
3
A
J
150-RD-18
A588-GN-18
A755-PK-18
A757-WH-18
10
K909-BU-18
K909-BU-18
K909-BU-18
A770-PK-18
E794-YL-18
E793-BU-18
892-BR-18
893-GN-18
196-BU
G
A
B
C
D
E
F
200-BK-18
893-GN-18
H
J
892-BR-18
200-BK-18
151-GN-18
150-RD-18
A588-GN-18
A587-YL-18
615-YL
200-BK
616-BU
320-RD-18
200-BK-18
200-BK-18
K909-BU-18
111-RD-14
SENSOR COM
200-BK-18
200-BK-18
200-BK-18
200-BK
A587-YL-18
322-GY
154-RD-18
177-RD-4
177-RD-4
200-BK-18
8
1
2
7
3
4
5
6
1
1
998-BR-18
E455-BR-18
L46
8
NN
NN
K976-OR-18
954-GN-18
K975-WH-18
K974-PU-18
K973-BR-18
A758-BR-18
N924-WH-18
177-RD-4
39
40
10
11
7
21
8
4
29
3
37
177-RD-4
4
3
2
1
5
6
311-WH-18
A424-WH-18
SENSOR O.W.D.
132-7315
SIGNAL OUT
SIGNAL IN
E455-BR-18
A425-YL-18
A424-WH-18
L973-GN-18
311-WH-18
L969-WH-18
L968-OR-18
F717-YL-18
K997-BU-18
120-YL
412-BU-18
K997-BU-18
200-BK
200-BK-18
F717-YL-18
1
2
A
439-YL-18
AA
439-YL-18
A499-BU-18
MOTOR
WASHER
7T-8890
ATCH AUX CKT
105-RD
892-BR-18
196-BU
151-GN-18
BATTERY
3T-5760
POS
NEGNEG
POS
ATCH
BATTERY
3T-5760
(NOTE C)
PROX SW
3T-3132
AC2
(ON/OFF)
121-1491
SOL
R1/R2
125-8075
F/C SOL
(PROP.)
111-9916
AUX PRESS
SW
131-9203
951-PK-18
NN
HAMMER 2
SOL (ON/OFF)
116-3413
A
2
1
A425-YL-18
A425-YL-18
A424-WH-18
A588-GN-18
4
168-RD-10
200-BK
B
103-RD
112-PU-14
112-PU-14
NN
955-BU-18
C
1
2
2
1
585-YL-18
A848-PK-18
A847-YL-18
NN
43
1
802-YL-18
K997-BU-18
24
NN
NN
PP
AC1
(ON/OFF)
121-1491
125
4125
RD
YL
A424-WH-18
955-BU-18
200-BK-14
200-BK
954-GN-18
103-RD
140-BU
952-OR-18
149-PU
112-PU-14
112-PU-14
BK
BU
103-RD-18
WH
4
1
K997-BU-18
6
15
101-RD-4
L974-GN-18
PP
L978-GY-18
L977-YL-18
506-PU
521-YL-18
521-YL-18
412-BU-18
F400-GY-18
499-GY-18
L45
200-BK
200-BK-18
GROUND
SPEAKER RH -
SPEAKER RH +
SPEAKER LH -
SPEAKER LH +
A762-PU-18
MEMORY + 12V
B+ 12V
7
8
1
2
893-GN-18
C912-GN-18
788-YL-18
1
F718-BU-18
CAT DATA LINK (-)
CAT DATA LINK (+)
THROTTLE
+B
546-BU-18
320-OR-18
1
4
3
D791-YL
A499-BU-18
439-YL-18
SPARE
SPARE
SMART BOOM
186-4639
L971-GN-18
H
AG
FAN SPEED
CONT SOL
615-YL-18
615-YL-18
2
1
200-BK-18
SPARE
SPARE
SPARE
M747-PU-18
SPARE
SOLENOID COMMON
FAN CONT SOL
AF AG
M744-PK-18
M746-YL-18
198-PK-18
200-BK-18
315-GN-18
2
198-PK-18
546-BU-18
NN
1
200-BK-18
547-OR-18
198-PK-18
547-OR-18
198-PK-18
MULTISWITCH JOYSTICK (RH)
NOTE E
206-2408
RIGHT SW
546-BU-18
198-PK-18
LEFT SW
J
HORN SW
128-2134
A/C UNIT
126-3375
DISABLE SW
+5V
191-WH-14
SENSOR COMMON
FUEL TEMP
2
INTAKE MANF AIR TEMP
COOLANT TEMP
OIL PRESSURE
ATM PRESSURE
2
950-BR-18
BOOST PRESSURE
ENG SP/TMG
2
116-BR-14
ENG SP/TMG COMMON
112-PU-14
+V ENG SP/TMG
112-PU-14
200-BK-18
315-GN-18
115-PK
SENSOR
FUEL TEMP
L970-GY-18
196-BU
SENSOR
INTAKE MANF
AIR TEMP
SENSOR
COOLANT TEMP
C
SENSOR
OIL PRESSURE
NN
BR
6
5
1
3
SENSOR
ATM PRESSURE
118-GY
2
4
151-GN-18
SENSOR
BOOST PRESSURE
SENSOR
SPEED/TIMING
168-RD-10
110-RD-14
149-PU
140-BU
B
129-BU
A
124-GN-14
PRESSURE SW
106-0179
952-OR-18
1
2
NN
200-BK-18
ENG SP/TMG
ENG SP/TMG COMMON
1
179-BU
113-OR-18
200-BK-18
113-OR-18
A
J
110-RD-14
F400-GY-18
GND STRAP
132-1805
L49
M743-GN-18
200-BK-18
320-RD-18
+V ENG SP/TMG
200-BK
200-BK
BOOST PRESSURE
115-PK
112-PU-14
C
112-PU-14
112-PU-14
3
2
168-RD-10
151-GN-18
CB
177-RD-10
200-BK-10
154-RD-18
ATM PRESSURE
149-PU
OIL PRESSURE
A755-PK-18
A756-BU-18
A757-GY-18
COOLANT TEMP
INTAKE MANF AIR TEMP
+5V
196-BU
SENSOR COMMON
SENSOR COMMON
+5V
+5V
SENSOR COMMON
SENSOR COMMON
151-GN-18
+5V
+5V
168-RD-10
SENSOR COMMON
149-PU
140-BU
FUEL TEMP
SENSOR COMMON
+5V
548-GY-18
549-PK-18
C
200-BK-14
B
A
A
B
C
C
B
A
B
C
A
A
B
C
C
INJECTOR 1
INJECTOR 2
INJECTOR 3
INJECTOR 4
A758-BR-18
INJECTOR 5
INJECTOR
SOL 6
INJECTOR
SOL 5
INJECTOR
SOL 4
INJECTOR
SOL 3
INJECTOR
SOL 2
1
A
B
C
B
H
29
1
37
2
23
20
8
15
9
3
30
36
2
1
1
2
2
1
POS
NEG NEG
POS
INJECTOR COM 5&6
INJECTOR COM 1&2
INJECTOR COM 3&4
INJECTOR 6
INJECTOR
SOL 1
5
17
27
K907-BU-18
K915-GN-18
L968-OR-18
L969-WH-18
308-YL-18
6
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
615-YL-18
615-YL-18
615-YL
12
18
22
615-YL
549-PK-18
198-PK-18
548-GY-18
198-PK-18
4
2
A
A
A
A
H
3
1
5
3
139-OR-18
6
508-PU-18
180-GN-14
509-WH-18
511-BR-18
P
CHASSIS
512-GN-18
B
28
L15
CC
114-RD
GG
(NOTE B)
200-BK-18
325-PK-18
34
118-GY
200-BK-18
200-BK
ENG CONT
200-BK-18
X
2
105-RD
200-BK-10
MM
112-PU-14
F
E
D
F
952-OR-18
F400-GY-18
C912-GN-18
C
B
A
H
G
F
E
D
C
B
A
200-BK
615-YL
C912-GN-18
L27
BU
801-PK-18
C532-GN-18
C532-GN-18
200-BK
138-GN
G438-PK-18
E985-BR-18
A601-YL-18
200-BK-18
GY
YL
C912-GN-18
521-YL-18
185-YL-18
113-OR-18
200-BK-18
1
191-WH-14
2
2
1
547-OR-18
198-PK-18
135-BU
M743-GN-18
F717-YL-18
633-BU-18
210-BK
A
C468-BU-18
BK-00
M746-YL-18
M744-PK-18
4
2
F717-YL-18
A
H
3
1
F717-YL-18
152-BU-18
124-GN
509-WH-18
508-PU-18
511-BR-18
512-GN-18
112-PU-14
112-PU-4
FOR INSP LAMP
9R-7941
114-RD
115-PK
L15
200-BK-18
F718-BU-18
A
177-RD-10
177-RD-14
177-RD-14
177-RD-14
150-RD-18
111-RD-14
154-RD-18
115-PK
578-BU-18
F718-BU-18
L43
A768-BU-18
N923-GY-18
578-BU-18
F718-BU-18
952-OR-18
N923-GY
N923-GY-14
177-RD-14
952-OR-18
200-BK
200-BK
200-BK
198-PK-18
200-BK
506-PU
200-BK
322-GY
322-GY
4
2
3
5
1
6
C537-GN-18
1
322-GY
114-RD
548-GY-18
198-PK-18
PP
2
549-PK-18
200-BK-18
L972-BU-18
G
159-RD-14
159-RD-14
177-RD-14
177-RD-14
177-RD-10
177-RD-4
105-RD
185-YL-18
113-OR-18
B
NN
TT
V
129-BU
508-PU-18
200-BK-18
177-RD-4
200-BK-18
GG
FF
EE
CC
BB
AA
CABLE AS.
WIRE AS.
M
K
J
H
F
E
D
C
IDENT PART NO. LOC
HARNESS AS.
S
T
A
SS
U
P
177-RD-14
12 1011
12 10
9
11
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
L43
322-GY322-GY
200-BK
495-GN-18
200-BK
509-WH-18
200-BK
159-RD-14
616-BU
A770-PK-18
607-PK
998-BR-18
616-BU
998-BR-18
152-BU
607-PK
G
B
K
320-RD-18
147-PU-18
616-BU
200-BK
149-PU
786-GN-18
120-YL
511-BR-18
200-BK-14
12
11
10
9
8
200-BK-14
615-YL
200-BK
200-BK
7
200-BK
512-GN-18
6
5
4
3
200-BK-14
2
1
791-PK-18
200-BK-18
N923-GY-18
M743-GN-18
G848-GN-18
WH
YL
F846-PU-18
955-BU-18
952-OR-18
RABBIT
2 WAY
1 WAY
PS
961-BR-18
616-BU
200-BK
200-BK
200-BK
200-BK-14
200-BK-14
200-BK-18
C532-GN
C532-GN
C532-GN
616-BU
151-GN-18
A588-GN-18
A587-YL-18
C538-OR-18
K909-BU-18
196-BU
GN
C532-GN
C537-GN-18
325-PK-18
118-GY
129-BU
L977-YL-18
L974-GN-18
C532-GN
140-BU
168-RD-10
BK
YL
138-GN
L61
L61
386-PK
151-GN-18
306-GN
308-YL
GG (NOTE B)
RD-00
RD-00
633-BU-18
200-BK-18
140-BU
116-BR-14
129-BU
(167-3625 V 00)
L971-GN-18
196-BU
412-BU-18
499-GY-18
2
1
G
G
FUEL LEVEL
SENSOR
105-9911
C538-OR-18
ATCH
REFUELING
LEVEL SW
5C-6108
X
B
2
1
ATCH
BOOM LAMP
153-2521
K
607-PK
546-BU-18
B
38
19
18
17
16
14
13
12
7
2
5
M747-PU-18
6
A/C
RELAY
149-5050
AP
200-BK-18
5
9
XX
B
MAIN RELAY
165-4026
DIODE
121-4871
G
BD
B
B
XX
AB
4
2
3
1
HORN RELAY
149-5050
START RELAY
125-1302
NEUTRAL
START RELAY
149-5050
12
6
7
TIMER RELAY
111-4870
9
4
3
952-OR-18
11
10
2
8
1
5
YY
VV
OUT 2
GND
IN 1
IN 2
+B
OUT 1
952-OR-18
177-RD-14
952-OR-18
140-BU
116-BR-14
150-RD-18
150-RD-18
AB
NOTE A
NOTE A
AT
1
2
L47
ATCH
MAIN RELAY
159-9108
(NOTE B)
MAIN RELAY
RESISTOR
102-8017
200-BK
80A
jj
AD
BREAKER 1
9S-4693
jj
185-YL-18
118-GY
307-OR
115-PK
129-BU
1
L970-GY-18
A755-PK-18
N924-WH-18
546-BU-18
547-OR-18
548-GY-18
549-PK-18
A756-PU-18
A757-WH-18
A758-BR-18
JJ
A
2
3
4
1
6
114-RD
115-PK
198-PK-18
JJ
A
A
JJ
4
K976-OR-18
547-OR-18
546-BU-18
439-YL-18
K975-WH-18
K974-PU-18
K973-BR-18
3
2
L46L45
168-RD-10
150-RD-18
200-BK
200-BK-14
2
189-RD-14
110-RD-14
1
105-RD
7
114-RD
K905-RD
JJ
NN
5
3
6
149-PU
1
4
2
1
2
JJ
ATCH-FOOT
SWITCH
PEDAL-RH
ATCH-FOOT
SWITCH
PEDAL-LH
8
7
6
5
4
3
2
1
JJ
NN
185-YL-18
113-OR-18
140-BU
307-OR
120-YL
147-PU-18
160-PU
179-BU
196-BU
176-YL
K905-RD
191-WH-14
129-BU
149-PU
105-RD
112-PU-14
200-BK-14
315-GN-18
200-BK-14
K912-GN-18
K911-PK-18
403-GN-18
191-WH-14
615-YL-18
K911-PK-18
K912-GN-18
A586-OR-18
590-GY-18
501-GN-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
200-BK-14
103-RD-18
118-GY
A
615-YL-18
120-YL
403-GN-18
8
633-BU-18
210-BK
524-BU
638-WH
139-OR-18
200-BK-14
135-BU
103-RD-18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
615-YL
118-GY
615-YL
K997-BU-18
524-BU
506-PU
590-GY-18
501-GN-18
A586-OR-18
103-RD
103-RD
103-RD-18
191-WH-14
508-PU-18
509-WH-18
110-RD-14
179-BU
118-GY
5
150-RD-18
4
511-BR-18
3
2
512-GN-18
118-GY
129-BU
139-OR-18
120-YL
150-RD-18
1
154-RD-18
113-OR-18
196-BU
112-PU-14
112-PU-14
189-RD-14
111-RD-14
112-PU-14
150-RD-18
961-BR-18
152-BU
112-PU-14
200-BK-18
308-YL-18
L969-WH-18
L968-OR-18
K915-GN-18
K907-BU-18
A
160-PU
A
113-OR-18
168-RD-10
180-GN-14
116-BR-14
124-GN-14
159-RD-14
103-RD
159-RD-14
113-OR-18
103-RD
159-RD-14
160-PU
315-GN-18
30A
10A
START AID
5A
15A
10A
10A
10A
E/P CONT
AUX CKT
FINE SWING
CIGAR LIGHTER
12V 5A SOCKET
LUBRICATOR
D
BIO PUMP
HYD LOCK SW
HYD LOCK SOL
5A
15A
10A
AD
80A
VV
10
BOOM LAMP RELAY
149-5050
9
12
11
7
1
AUX CKT
WASHER/WIPER
5A
INSP LAMP
BACKUP
10A
210-BK
AUX CKT
15A
15A
10A
6
8
3
2
5
4
HORN
7T-0969
10A
10A
15A
CHASSIS LAMP
BOOM LAMP
10A
CAB LAMP
7
8
1
6
5
4
3
2
10A
10A
10A
10A
5A
CHASSIS
LAMP RELAY
149-5050
7
159-RD-14
A587-YL-18
159-RD-14
H
H
A587-YL-18
A587-YL-18
A587-YL-18
A587-YL-18
A758-BR-18
A757-WH-18
A756-PU-18
A755-PK-18
N923-GY-14
952-OR-18
F846-PU-18
G848-GN-18
955-BU-18
954-GN-18
K973-BR-18
K
K974-PU-18
CHASSIS
LAMP
153-2523
ATCH
BOOM LAMP
153-2521
K975-WH-18
K976-OR-18
2
1
549-PK-18
HORN
7T-0970
548-GY-18
547-OR-18
546-BU-18
N924-WH-18
L970-GY-18
200-BK-14
A587-YL-18
6
8
1
7
4
5
3
2
954-GN-18
135-BU
780-PU-18
C
B
A
403-GN-18
152-BU
118-GY
A499-BU-18
152-BU
200-BK-14
439-YL-18
F
576-PK-18
MONITOR +B OUT
L972-BU-18
A755-PK-18
L968-OR-18
763-BU-18
A756-BU-18
A771-PU-18
L969-WH-18
L971-GN-18
A757-GY-18
L970-GY-18
788-YL-18
A762-PU-18
430-BU-18
321-BR-18
F400-GY-18
491-PK-18
495-GN-18
A758-BR-18
496-WH-18
L4
L3
308-YL-18
200-BK
L25
9
12V SOCKET
9R-7941
L20
200-BK-14
615-YL
310-PU-18
200-BK-14
L977-YL-18
103-RD-18
103-RD-18
780-PU-18
B
MOTOR
638-WH
A
C
4
7
6
8
5
152-BU-18
2
200-BK
L19
118-GY
DOME LAMP
096-0721
3
615-YL
103-RD-18
779-WH-18
524-BU
590-GY-18
501-GN-18
129-BU-18
403-GN-18
961-BR-18
307-OR-18
307-OR-18
AP
NOTE A: THE FOLLOWING WIRE PAIRS MUST BE TWISTED
AT LEAST 1 TURN PER 25MM.
(892-BR, 893-GN) (E793-BU, E794-YL)
VV
YY
AT
AP
307-OR
575-YL-18
C532-GN-18
XX
370-BU
AD
200-BK-18
200-BK-18
200-BK-18
200-BK
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
F717-YL-18
200-BK-18
235-BK-18
200-BK-18
779-WH-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-14
200-BK
200-BK-18
200-BK
200-BK-14
A588-GN-18
200-BK-18
L14
200-BK
200-BK
892-BR-18
892-BR-18
893-GN-18
11
K997-BU-18
235-BK-18
K911-PK-18
K912-GN-18
C468-BU-18
K907-BU-18
K915-GN-18
K911-PK-18
K912-GN-18
103-RD-18
615-YL-18
A586-OR-18
200-BK-18
1
L909-BU-18
L908-OR-18
K904-GN-18
K905-RD-18
235-BK-18
200-BK
L974-GN-18
780-PU-18
780-PU-18
C537-GN-18
200-BK-18
200-BK
200-BK
512-GN-18
511-BR-18
509-WH-18
508-PU-18
C538-OR-18
103-RD-18
QC BUZZER
113-4683
ROTARY SW
155-2715
BK
BU
FACTORY
ADJ CONN
GN
BN
A587-YL-18
THROTTLE DIAL S1
A
A
1
2
4
3
THROTTLE DIAL S2
THROTTLE DIAL S3
THROTTLE DIAL S4
ECM THRT
EPR VALVE (+)
GOV ACTR (B)
GOV ACTR FDBK
COOLANT LEVEL SW
TRAVEL SPEED SOL
ENG SPEED SENSOR (-)
ENG SPEED SENSOR (+)
TRENCHING SOL
IMPLEMENT SW
ENG OIL LEVEL SW
FUEL LEVEL SENSOR
FRONT PUMP PRESS SENSOR
HYD OIL LEVEL SW
AIR CLEANER SENSOR
HYD OIL TEMP SENSOR
RS485 - (VALVE CONT)
RS485 + (VALVE CONT)
RS232C (GND)
RS232C (RX)
COOLANT SENSOR
9
140-BU
20
10
28
31
26
13
30
29
35
40
2
6
39
6
24
25
22
15
ALTERNATOR (R TERM)
RS485 - (RH JOYSTICK)
7
38
12
TRAVEL ALARM
ENG OIL PRESS SW
36
SWING BRAKE SOL
23
EPR VALVE (-)
17
21
8
RS485 + (LH JOYSTICK)7
CAB
8 RS485 - (LH JOYSTICK)
RS485 + (PEDAL)9
10
RS485 + (SEMI AUTO)
RS485 - (PEDAL)
RS485 + (RADIO CONT)17
HYD TANK PRESS. SW
RS485 + (MONITOR)
RS485 - (SEMI AUTO)
HYD TANK INDICATOR
RS485 + (RH JOYSTICK)
RS485 - (MONITOR)
27
18
RS232C (RX)
TRAVEL SW
HYD OIL FILTER INDICATOR
DIGITAL OUT (-)
18
RS485 - (RADIO CONT)
CAT DATA LINK (+)19
+B
+B
AIR INDICATOR
FINE SWING SW
ELEC GOV THROTTLE DIAL
RS485(+)
BOOM RAISE PRESS SW
LEVEL FINISH SOL
ENG POWER CHANGE SOL
OPTION PRESS SW
32
33
25
KEY SW ON
CAT DATA LINK (-)
26
12
40
2
4
28
27
LOW IDLE SW
21
20
1
11
22
34
3
24
23
14
13
16
15
5
36
35
29
31
30
39
38
37
GND
GND
HAMMER PRESS. SW
RS232C (TX)
KEY SW START
A
LUNCH BOX LIGHT
2
3
4
5
6
1
8
7
OPTION SW37
4
3
OPTION SENSOR (PWM)
1
16
19
5
OPTION SENSOR (PWM)
32
33
DIGITAL OUT (-)
DIGITAL OUT (-)
14
11
34
ATCH SPEAKER(L)
7Y-5505
ATCH SPEAKER(R)
7Y-5505
6
10
8
12
5
2
4
7
802-YL-18
G438-PK-18
CONVERTER
131-0327
7
6
5
4
310-PU-18
3
8
1
2
5
4
3
2
1
6
F
F
F
F
F
A
L6
GND
24V BAT IN MEM
24V SW. IN
LIGHT OUT (DC 12V)
12V MEM OUT
GND
12V SW. OUT
LIGHT IN (DC 24V)
6
E985-BR-18
138-GN
C532-GN-18
801-PK-18
A601-YL-18
G457-GR-18
370-BU
AB
JOY STICK +B OUT
BK-00
RD-00
RD-00
A
CHASSIS
K909-BU-18
K905-RD
FF (NOTE B)
BB
EE (NOTE B)
AA
321-BR-18
615-YL-18
115-PK
189-RD-14
154-RD-18
111-RD-14
150-RD-18
A770-PK-18
A769-GY-18
A768-BU-18
jj
BA
5
K906-GN-18
578-BU-18
307-OR
189-RD-14
786-GN-18
AT
C468-BU-18
586-BR-18
A762-PU-18
788-YL-18
403-GN-18
495-GN-18
496-WH-18
491-PK-18
A769-GY-18
763-BU-18
L978-GY-18
A771-PU-18
K906-GN-18
430-BU-18
K904-GN-18
8630-BU-18
147-PU-18
L973-GN-18
200-BK-14
H
1
2
6
5
235-BK-14
DISCONNECT SW.
7N-0718
7N-0719(NOTE B)
K904-GN-18
322-GY
200-BK-18
BU
491-PK-18
496-WH-18
200-BK-18
112-PU-4
L38
412-BU-18
200-BK-18
430-BU-18
180-GN-14
F400-GY-18
893-GN-18
892-BR-18
140-BU
A601-YL-18
310-PU-18
ATA DATA LINK (-)
321-BR-18
ATA DATA LINK (+)
AF
C468-BU-18
A762-PU-18
788-YL-18
403-GN-18
495-GN-18
496-WH-18
491-PK-18
A769-GY-18
892-BR-18
893-GN-18
521-YL-18
F400-GY-18
412-BU-18
499-GY-18
495-GN-18
L51
109-RD-4
T
491-PK-18
L15
321-BR-18
C468-BU-18
763-BU-18
A762-PU-18
788-YL-18
A771-PU-18
403-GN-18
A587-YL-18
200-BK-14
1
235-BK-14
4
GN
954-GN-18
K905-RD-14
140-BU
2
168-RD-10
7
6
9
8
10
11
4
3
5
1
12
40
39
2
HYD LOCK SOL RELAY
149-5050
32
200-BK-18
26
BACKUP
RESISTOR
102-8017
YY
ALT BREAKER
9S-4693
NOTE A
NOTE A
CAB
LAMP RELAY
149-5050
ET CONN AND ECAP CONN
A
RELAY
PANEL
322-GY
25
24
499-GY-18
21
200-BK-18
ATCH
MAIN RELAY
RESISTOR
163-6616
(NOTE B)
112-PU-18
200-BK-18
B
200-BK-14
306-GN
306-GN
386-PK
HYD TANK
PRESS SW
107-0615
1
2
AE
1
SIGNAL
3
2
4
+B
SIGNAL
GROUND
HYD OIL
FILTER SW
143-8037
AE
BAE
4
11
10
12
8
9
7
6
1
GY
RD
BK
A
L41
893-GN-18
K904-GN-18
K906-GN-18
L974-GN-18
A771-PU-18
L971-GN-18
L972-BU-18
200-BK-18
AUX BACKUP SW
C
B
A
L16
191-WH-14
549-PK-18
101-RD-4
499-GY-18
200-BK-18
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
TO MACHINE STRUCTURE
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
N924-WH-18
N923-GY-14
2
5
3
310-PU-18
ATCH
SUCTION LINE
SHUTOFF LIMIT SW
3E-5181
AE
K997-BU-18
HYD OIL
FILTER SW
143-8037
19
GROUND
16
SIGNAL
14
152-BU
13
+B
4
180-GN-14
11
10
200-BK
38
35
2
33
2
7
124-GN
200-BK
1
200-BK
4
200-BK-18
200-BK
200-BK-14
E794-YL-18
491-PK-18
152-BU
6
8
3
2
L20
5
L23
E793-BU-18
495-GN-18
198-PK-18
A587-YL-18
954-GN-18
780-PU-18
779-WH-18
1
955-BU-18
G848-GN-18
F846-PU-18
952-OR-18
4
180-GN-14
A425-YL-18
B
A424-WH-18
C
200-BK-14
L51
1
AEAE
1
2
4
200-BK
124-GN-18
638-WH
200-BK
A537-PK-18
2
1
200-BK-18
586-BR-18
200-BK-18
506-PU
AE
506-PU
HYD OIL
TEMP SENDER
4I-5394
A424-WH-18
A425-YL-18
152-BU
638-WH
8630-BU-18
576-PK-18
575-YL-18
C
A770-PK-18
A769-GY-18
A768-BU-18
K906-GN-18
L973-GN-18
578-BU-18
307-OR-18
308-YL-18
791-PK-18
786-GN-18
185-YL-18
4
ATCH ROTATING BEACON LAMP
113-OR-18
A586-OR-18
501-GN-18
590-GY-18
12
3
HYD OIL
LEVEL SW
111-4760
2
T
1
SS AE
L59
180-GN-14
892-BR-18
3
SIGNAL
152-BU
8630-BU-18
K909-BU-18
322-GY
200-BK-18
616-BU
496-WH-18
495-GN-18
616-BU
200-BK-18
304-WH-8
495-GN-18
200-BK-18
616-BU
200-BK-18
L23
A499-BU-18
322-GY
A
A
ATCH
SEAT WITH
SEAT HEATER
111-6458
1
1
325-PK-18
11
8
2
12
9
10
11
4
3
2
12
9
8
2
7
6
5
4
3
10
1
4
5
6
1
7
3
3
HH
AA
H
2
A
H
4
A
616-BU
140-BU
140-BU
L49
L977-YL-18
763-BU-18
L978-GY-18
A768-BU-18
A769-GY-18
200-BK-18
200-BK-14
A537-PK-18
124-GN-18
200-BK-18
779-WH-18
2
1
L969-WH-18
321-BR-18
198-PK-18
MULTISWITCH JOYSTICK (LH)
199-2443
RIGHT SW
548-GY-18
L16
200-BK-18
A770-PK-18
L968-OR-18
200-BK-18
198-PK-18
109-RD-4
200-BK-18
200-BK-18
200-BK
A425-YL-18
191-WH-14
N924-WH-18
200-BK
200-BK
200-BK-18
200-BK-18
D
3
8630-BU-18
615-YL-18
615-YL-18
200-BK-18
AG
200-BK-14
780-PU-18
A425-YL-18
A424-WH-18
780-PU-18
779-WH-18
779-WH-18
AUTO-LUBE
RELAY 2
149-5050
779-WH-18
JJ
L42
L42
115-PK
200-BK-14
200-BK-18
200-BK-18
124-GN
124-GN
124-GN
615-YL-18
A
L38
615-YL-18
7
2
575-YL-18
576-PK-18
578-BU-18
L973-GN-18
152-BU-18
200-BK-18
200-BK-18
K907-BU-18
200-BK-18
200-BK-18
615-YL-18
615-YL-18
586-BR-18
200-BK-18
8630-BU-18
ATCH ROTATING
BEACON SW
H
(NOTE F)
TT
N923-GY-14
N924-WH-18
615-YL-18
200-BK-18
191-WH-14
K909-BU-18
200-BK-18
L8
200-BK-18
L16
615-YL-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
185-YL-18
F718-BU-18
779-WH-18
439-YL-18
L35
L4
L33
998-BR-18
L21
L31L36 L9 L8
200-BK-18
L12 L13
H
L32
L31
HH
L33
K915-GN-18
L19
L25
L3
L25
780-PU-18
L32
L31
2
1
638-WH
200-BK
L19
L20
L25
L2
524-BU
524-BU
L978-GY-18
615-YL-18
615-YL-18
N923-GY-14
L27
L26
L26
L30
998-BR-18
L10
200-BK-18
615-YL-18
780-PU-18
A769-GY-18
F718-BU-18
152-BU-18
615-YL-18
200-BK-18
A768-BU-18
F
A
L6
K906-GN-18
998-BR-18
L28
615-YL-18
185-YL-18
200-BK
200-BK
152-BU-18
L10
G438-PK-18
310-PU-18
ATCH AUX SW
615-YL-18
615-YL-18
200-BK-18
779-WH-18
L61
H
ATCH START
AID SW
111-4784
780-PU-18
802-YL-18
140-BU
185-YL-18
138-GN
168-RD-10
L5
ATCH WARMING
WINDSHIELD SW
138-5130 (NOTE E)
H
L11
200-BK-18
780-PU-18
200-BK-18
ATCH AUX HYD
CONT SW
111-4787
HH
H
ATCH O.W.D.
132-1828
H
BACKUP
EPR VALVE SW
114-0421
HH
BACKUP
THRT SW
110-7884
ATCH SEAT
HEATER SW
111-4783
H
118-GY
118-GY
118-GY
506-PU
780-PU-18
780-PU-18
779-WH-18
A424-WH-18
8
7
200-BK-18
200-BK-18
779-WH-18
780-PU-18
780-PU-18
779-WH-18
780-PU-18
780-PU-18
779-WH-18
780-PU-18
780-PU-18
200-BK-18
200-BK-18
200-BK-18
780-PU-18
780-PU-18
200-BK-18
200-BK-18
779-WH-18
200-BK-18
6
5
LOW PRESSURE
SOL (A1)
121-1491
1
2
HIGH PRESSURE
SOL (A2)
156-9513
BK-18
2
1
C
C
C
311-WH-18
C
788-YL-18
A762-PU-18
ALTERNATOR
3E-7577
101-RD-4
ENG OIL
LEVEL SW
111-4759
1
2
2
138-GN
1
C
304-WH-8
C
E
ATCH
START AID
COOLANT TEMP SW
3E-6425
C912-GN-18
ENG SPEED
PICKUP
6V-2455
788-YL-18
B+
R
ALT
A/C CLUTCH
SOL
113-3499
ATCH
START AID
SOL
3E-6332
1
2
B
177-RD-14
189-RD-14
189-RD-14
189-RD-14
AIR CLEANER SW
162-6208
A762-PU-18
WH-18
BK
RD
L23
200-BK
802-YL-18
200-BK-18
G457-BR-18
COOLANT
LEVEL SW
096-0744
160-PU
179-BU
B
B
325-PK-18
E985-BR-18
802-YL-18
G438-PK-18
E985-BR-18
138-GN
C532-GN-18
638-WH
801-PK-18
G457-GR-18
370-BU
607-PK
607-PK
607-PK
607-PK
200-BK
L62
L62
2
0
0
-
B
K-
4
1
0
9
-
R
D-
4
C
322-GY
200-BK-18
F717-YL-18
F718-BU-18
F717-YL-18
BK
BK
4
AZ
3
2
200-BK
607-PK
802-YL-18
140-BU
C532-GN
200-BK-18
200-BK-18
140-BU-14
L36
179-BU
200-BK
A601-YL-18
308-YL-18
200-BK-18
200-BK-18
200-BK
200-BK-18
A758-BR-18
E985-BR-18
HIGH PRESSURE
SOL (A3)
156-9513
779-WH-18
200-BK-18
200-BK-18
780-PU-18
1
780-PU-18
1
200-BK-18
200-BK-18
307-OR-18
A757-GY-18
A756-BU-18
780-PU-18
315-GN-18
L30
140-BU-14
L10
A755-PK-18
200-BK-18
2
A
2
1
200-BK-18
200-BK-18
1
124-GN
200-BK-18
185-YL-18
AF
31
2
3
L16
200-BK-18
4
5
6
3
2
A
1
615-YL-18
4
105-RD
ATCH
SUCTION LINE
SHUTOFF LIMIT SW
3E-5181
152-BU-18
A537-PK-18
WH-18
WH-18
WH-18
WH-18
1
4
3
2
G438-PK-18
138-GN
200-BK
C532-GN-18
C532-GN-18
1
2
370-BU
GREEN
200-BK-18
A
2
A
1
A
4
200-BK-18
330-YL-18
330-YL-18
AEV
386-PK
2
3
801-PK-18
330-YL-18
7
308-YL-18
5
4
3
2
1
1
M744-PK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
M743-GN-18
AUTOLUBE BUZZER
113-4683
A
1
4
2
2
3
4
1
8
1
N923-GY-14
200-BK-18
308-YL
308-YL
308-YL
306-GN
386-PK
386-PK
386-PK
386-PK
306-GN
M747-PU-18
952-OR-18
200-BK-14
780-PU-18
308-YL-18
3
200-BK
103-RD-18
633-BU-18
139-OR-18
210-BK
120-YL
135-BU
BK
HI. PRES. DETECTION
SW AS 150-1831
ADD LUB INDICATOR
SW AS 106-0037
412-BU-18
BUZZER
SW AS 150-1830
780-PU-18
615-YL-18
K976-OR-18
615-YL
K975-WH-18
K974-PU-18
K973-BR-18
N919-GN-18
N920-BU-18
N921-YL-18
N922-OR-18
546-BU-18
548-GY-18
549-PK-18
LEVEL INDICATOR
SW AS 150-1832
200-BK
M744-PK-18
547-OR-18
952-OR-18
N923-GY
G848-GN-18
A849-OR-18
A850-WH-18
951-PK-18
950-BR-18
A847-YL-18
A848-PK-18
F846-PU-18
585-YL-18
200-BK
2
NOTE E: ALL 345 B2 MACHINES ARE EQUIPPED
WITH THIS VALVE GP JOYSTICK (RH) ATCH.
5
22
16
10
4
21
15
9
3
24
20
19
6
MEDIUM PRESS SOL R2
18
11
17
23
12
307-OR-18
1
7
8
13
105-RD
14
THROTTLE POS SW
NN
E/P CONTR
E/P CONTR
E/P CONTR
E/P CONTR
THROTTLE POS SW
AUX PILOT MAN AC1
FLOW CONTROL SOL
RH - JOYSTICK
GROUND
AUX PILOT MAN AC2
PROX SW
MEDIUM PRESS SOL R1
LH - JOYSTICK
LH - JOYSTICK
HAMMER 2 SPEED SOL
FLOW CONTROL SOL
ROCKER SW CSL
RH - JOYSTICK
PRESSURE SW
AUX CKT POWER SUPPLY
THROTTLE POS SW
200-BK-18
THROTTLE POS SW
200-BK-18
779-WH-18
200-BK-18
779-WH-18
177-RD-4
177-RD-4
177-RD-4
200-BK
118-GY
524-BU
160-PU160-PU
160-PU
103-RD-18
200-BK-18
200-BK-18
103-RD-18
F
LL
954-GN-18
H
LL
N924-WH-18
N923-GY-14
N924-WH-18
177-RD-4
160-PU
546-BU-18
547-OR-18
307-OR
308-YL
308-YL
307-OR
200-BK-14
A
779-WH-18
200-BK-18
200-BK-18
780-PU-18
7
L54
1
2
780-PU-18
200-BK-18
HYD
LOCK SOL
121-1491
2
780-PU-18
L54
306-GN
L54
200-BK-18 200-BK-18
M747-PU-18
1
1
3
5
4
103-RD
6
A
2
8
780-PU-18
200-BK-18
780-PU-18
200-BK-18
307-OR
ATCH AUX CKT
403-GN-18
OPERATOR STATION
308-YL
180-GN-14
200-BK-14
A424-WH-18
A425-YL-18
321-BR-18
200-BK-14
200-BK-14
A769-GY-18
A768-BU-18
L978-GY-18
763-BU-18
L977-YL-18
A499-BU-18
496-WH-18
616-BU
1
2
147-PU-18
A
L973-GN-18
L43
607-PK
200-BK-18
113-OR-18
791-PK-18
L40
786-GN-18
A586-OR-18
501-GN-18
590-GY-18
L52
M744-PK-18
M746-YL-18
UPPER WIPER MOTOR
131-0399
200-BK-18
FM
615-YL
L34
K976-OR-18
K975-WH-18
322-GY
103-RD
495-GN-18
491-PK-18
306-GN
961-BR-18
315-GN-18
K997-BU-18
6
103-RD
103-RD
AE
I-3
A-4
A-3
I-7
A-2
F-10
H-6
D-4 (NOTE F)
A-6
G-11 (NOTE B)
G-11 (NOTE B)
G-11 (NOTE B)
G-11
G-11
G-11
C-6
B-1
H-4
F-4
C-6
C-5
E-9
C-11
H-3
A-3
C-2
A-6
A-4
A-3
D-9
D-9
G-8
D-9
E-9
G-7
D-9
E-9
A-11
A-10
H-6
F-9
D-2
A-6
111-4846
132-1827
150-6961
160-0974
125-4868
197-0861
144-5561
116-0237
144-1180
116-0242
116-0080
128-8898
125-4727
116-0080
128-8884
117-7028
125-4848
199-9640
199-9638
154-8149
130-6568
202-7746
199-1249
136-4731
116-0096
197-0860
144-1179
116-0098
170-6848
150-6967
150-6966
170-6995
167-3493
149-5060
167-3479
149-5059
167-3478
145-0176
170-6985
144-2177
200-0931
145-7213
199-1250
168-RD-10
168-RD-10
ATCH-AUX/BACKUP
RELAY
145-6907
200-BK-14
L970-GY-18
N924-WH-18
546-BU-18
547-OR-18
893-GN-18
200-BK-18
168-RD-10
499-GY-18
168-RD-10
548-GY-18
549-PK-18
K974-PU-18
K973-BR-18
954-GN-18
955-BU-18
G848-GN-18
F846-PU-18
952-OR-18
-
N923-GY-14
LEFT SW
L34
L971-GN-18
L11
L12
H
L6
S
A771-PU-18
A755-PK-18
A756-PU-18
A757-WH-18
A758-BR-18
138-GN
L974-GN-18
403-GN-18
403-GN-18
403-GN-18
M
+B
L. CHASSIS
L. BOOM
HYD TK IND
WASH
W. LOW
W. INT
GND
E985-BR
5
4
3
2
1
6
B
31
15
N
Z
M
B
C532-GN
140-BU
140-BU
C532-GN
200-BK
B
403-GN-18
K906-GN-18
L13
200-BK-18
L13
L12
L11
L9
L8
961-BR-18
L9
L8
G438-PK
802-YL
K905-RD-18
K905-RD-18
L1
A
A
AUTO-LUBE
PUMP
148-8535
+
200-BK-18
L1
412-BU-18
K905-RD-18
615-YL
L4
K904-GN-18
S4
S3
S2
S1
COM
CAB LAMP
5I-8250
L28
OPTION SW
ATCH-AUX/HYD
CONTROLLER
122-9897
A425-YL-18
A424-WH-18
H
A424-WH-18
A499-BU-18
SWITCH PANEL
128-8909
KEY SW
9G-7641
H
A425-YL-18
A/C PHOTO
SENSOR
128-2162
L3
L2
L41
THROTTLE
POS SW
106-0107
A425-YL-18
MOTOR
R
C
S
B
200-BK-18
OFF
200-BK-18
ON
ST
200-BK-18
L4
H
ONE TOUCH
LOW IDLE SW
A424-WH-18
MM
MM
L5
200-BK-18
M746-YL-18
M747-PU-18
M744-PK-18
A588-GN-18
M743-GN-18
200-BK-18
304-WH-8
101-RD-4
200-BK-4
109-RD-4
REFUELING PUMP
A/C RELAY
RADIO
HORN
KEY SW
O.W.D.
TIMER RELAY
DOME LAMP
A/C /HEATER
SWITCH PANEL
4315
4
4
31
5
315
4315
I
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE SYSTEM VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE SYSTEM VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITORING CIRCUIT.
PA NEL LAMP CIRCUIT.
TURN SIGNAL AND WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE CONTROL CIRCUIT.
AT TACH AUX/HYD.
START AID CIRCUIT.
ENG/PUMP CONTROL CIRCUIT.
CONN 1
CONN 2
CONN 3
CONN 4
CONN 6
CONN 7
CONN 5
CONN 8
CONN 9
CONN 10
CONN 11
CONN 12
CONN 13
CONN 14
CONN 15
CONN 16
CONN 17
CONN 18
CONN 19
CONN 20
CONN 21
CONN 22
CONN 23
CONN 24
CONN 25
CONN 26
CONN 27
CONN 28
CONN 29
CONN 30 CONN 31
CONN 32
CONN 33
CONN 34 CONN 35
CONN 36
CONN 37
CONN 38
CONN 39
CONN 40
CONN 41
CONN 42
CONN 43
CONN 44
CONN 45
CONN 46 CONN 47
CONN 48
CONN 49
CONN 50
CONN 51
CONN 52
8
7
6
5
4
3
2
1
CONN 53
CONN 55
CONN 54
CONN 56
CONN 57
9
8 7
6
5
4
3 2
1
1
1
