A AA
2
A AA
1
2
325-PK-14
C
A
325-PK-14
200-BK-14
T
FUSE - A component in an electrical circuit that will open the circuit if too much current flows
through it.
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.
CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too
much current flows through it. This does not destroy the circuit breaker and it can be reset to
become part of the circuit again.
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 Electrical Schematic Symbols
Socket
Pin
Pin or Socket
Number
Wire, Cable, or Harness
Assembly Identification
Single Wire
Connector
Circuit Number
Identification
Wire
Gauge
Wire
Color
Plug
Receptacle
9X-1123
Component
Part Number
Electrical Schematic Symbols And Definitions
1
1
1
2
2
Typical representation of a
Sure-Seal connector. The
plugand receptacle contain
both pins and sockets.
Typical representation of a
Deutsch connector. The
plug contains all sockets
and the receptacle contains
all pins.
MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is
activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
Normally open switch that is closed due to an applied condition, and will open again with a
specific decrease in that condition.
Normally closed switch that will open with an increase of a specific condition.
Normally closed switch that is open due to an applied condition, and will close again
with a specific decrease in that condition.
The circle indicates that the component has screw terminals and a wire can be disconnected
from it.
No circle indicates that the wire cannot be disconnected from the component.
This indicates that the component has a wire connected to it that is connected to ground.
This indicates that the component does not have a wire connected to ground. It is grounded
by being fastened to the machine.
Electrical Schematic Symbols And Definitions
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
1
2
3
4
5
6
7
8
9
10
11
12
13
3
4
5
6
8
9
10
11
12
13
1
2
7
1
2
3
3
4
1
2
AREA C
AREA B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
4
1
2
17
18
19
3
4
1
2
3
4
5
6
8
9
10
11
12
14
15
13
16
1
2
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
AREA H
AREA G
AREA H
1
2
3
4
5
6
7
8
9
10
11
12
13
3
4
5
6
8
9
10
1
2
7
8
AREA A
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
4
5
6
8
9
10
11
12
14
15
13
16
1
2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
37
35
33
34
36
38
7
39
40
41
42
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Machine Harness Connector And Component Locations
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
4
5
6
8
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
37
35
33
34
36
38
7
39
40
41
42
17
18
19
20
21
45
33
24
25
26
27
28
29
30
31
32
43
47
46
35
36
39
40
34
33
48
42
41
37
44
45
38
11
H
G
12
10
33
F
36
47
23
43
44
40
46
35
39
22
34
38
48
42
37
41
1
2
3
4
5
3
4
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
3
4
5
6
8
9
10
11
12
14
15
13
16
1
2
17
18
7
17
AREA D
2
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
Connectors
Machine
Location
Harness And/Or
Components
Schematic
Location
CONN10
A-170-9396
Controller
D-2
CONN8
A-170- 9396
E-167-3526
C-5
CONN20
A-170-9396
Controller
F-2
CONN9
A-170-9396
E-167-3526
C-5
CONN116
C-128-8900
Engine Controller
C-12
CONN17
A-170-9396
H-170-9397
F-5
CONN117
AF-145-0176
Engine Controller
A-12
CONN18
A-170-9396
H-170-9397
F-5
13 Contacts
CONN14
E-167-3526
Wiper Controller
E-1
CONN34
A-170-9396
J-167-3536
H-5
CONN3
A-170-9396
A-170-9396
C-2
CONN38
A-170-9396
S-111-4841,Y-116-0103
H-3,4
CONN20
A-170-9396
H-170-9397
F-4
CONN42
AF-145-0176
AG-170-6985
A-10
CONN21
A-170-9396
H-170-9397
F-4
CONN113
B-170-9353
C-128-8900
C-12
CONN33
A-170-9396
J-167-3536
H-5 7 Contacts
CONN15
E-167-3526
Monitor
F-1
CONN37
A-170-9396
J-167-3536
H-4
CONN5
A-170- 9396
A-170-9396
C-2
CONN53
A-170-9396
B-170-9395
F-10
CONN7
A-170-9396
F-167-3532
C-6
CONN54
A-170-9396
B-170-9395
F-10
CONN19
A-170-9396
H-170-9397
F-5
CONN55
A-170- 9396
B-170-9395
G-10
CONN22
A-170-9396
H-170-9397
F-4
CONN58
D-170-6857, AN-170- 6871
B-170-9395
G-9
CONN31
H-170-9397
Engine Speed Dial
E-3
CONN60
A-170-9396
D-170-6857,AN-170-6871
H-9
CONN36
A-170-9396
J-167-3536
H-4
CONN61
A-170-9396
D-170-6857, AN-170-6871
H-9
CONN43
A-170-9396
A/C Unit
G-6
CONN97
B-170-9395
AE-140-0918
A-6
CONN46
L-116-0258
12V 5A Converter
H-6
CONN112
B-170-9395
C-128-8900
C-12
CONN78
A-170-9396
J-167-3536
H-5
CONN118
DD-4P-9537
AF-145-0176
A-11
CONN114
A-170-9396
B-170-9395
F-10
CONN10
F-167-3532
Power Window Control
B-6
CONN13
E-167-3526
Wiper Motor
E-1
CONN32
H-170-9397
Switch Panel
F-3
CONN24
H-170-9397
Start Aid Switch
D-5
CONN39
S-111-4841
Radio Tuner
I-3
CONN25
H-170-9397
Hammer Control Switch
D-4
CONN85
D-170-6857
AN-170-6871
I-7
CONN26
H-170-9397,TT-116-0237
Fine Swing Control Switch
D-4
CONN4
A-170-9396
A-170-9396
C-2
CONN27
H-170-9397
Seat Heater Switch
D-4
CONN6
A-170-9396
F-167-3532
C-6
CONN28
H-170-9397
Window Switch
D-3
HARNESS CONNECTOR LOCATION CHART
8 Contacts
6 Contacts
5 Contacts
8 Contacts
9 Contacts
12 Contacts
40 Contacts
Connectors
Connector
No. And
Machine
Location
Harness And/Or
Components
Schematic
Location
Connectors
Connector
No. And
Machine
Location
Harness And/Or
Components
Schematic
Location
CONN29
H-170-9397
Lower Washer Switch
D-3
CONN23
H -170-9397
Seat With Seat Heater
F-4
CONN30
H-170-9397
Lower Wiper Switch
D-3
CONN35
A-170-9396
J-167-3536
H-5
CONN50
A-170-9396
Lower Wiper Motor
I-1
CONN44
E-167-3526
A/C Unit
G-6
CONN63
D-170- 6857,AN-170-6871
Timer Relay
E-7
CONN45
A-170-9396
L-116-0258
H-6
CONN73
AE-140-0918
Hydraulic Oil Filter Switch
A-5
CONN47
A-170-9396
Hammer Press Switch
H-1
CONN95
AE-140-0918,V-121-1044
Suction Line Limit Switch
A-6
CONN48
A-170-9396
Auxiliary Hydraulic Press
Switch
H-1
CONN132
B-170-9395
SS-132-1845,NN-128-8912
C-10
CONN49
X-150-6961
P-167-3591
A-3
CONN136
B-170-9395
X-150-6961
B-3
CONN51
A-170-9396
Hydraulic Lock Solenoid
I-1
CONN137
AE-140-0918
Hydraulic Oil Filter Switch
A-5
CONN56
A-170-9396
Z-145-0551
G-10
CONN11
F-167-3532
Speaker
C-5
CONN57
A-170- 9396
N-132-1857
G-10
CONN12
F-167-3532
Speaker
C-5
CONN62
D-170-6857,AN-170-6871
Timer Relay
E-7
CONN40
W-13B-5127
Y-116-0103
H-3
CONN64
D-170- 6857,AN-170-6871
Start Relay
F-8
CONN52
J-167-3536
Neutral Start Switch
I-1
CONN65
A-170- 9396
H-170-9397
F-5
CONN71
B-170-9395
Coolant Level Switch
F-12
CONN66
AG-170-6985
Fanspeed Control Solenoid
A-10
CONN90
B-170-9395
Pump Discharge Press Sensor
B-8
CONN67
D-170- 6857,AN-170- 6871
Diode
F-8
CONN106 A-170-9396
D-2
CONN68
B-170- 9395
HH -132-1827
A-4
CONN119
AF-145-0176
Sensor Speed/Timing
B-11
CONN69
B-170- 9395
Travel Alarm
B-8
CONN120
AF-145-0176
Sensor Boost Pressure
B-11
CONN70
B-170-9395
Auto Lubrication Pump
F-12
CONN121
AF-145-0176
Sensor Atm Pressure
B-11
CONN72
B-170-9395
Start Aid Solenoid
F-12
CONN122
AF-145-0176
Sensor Oil Pressure
B-11
CONN74
Z-145-0551
Hammer Control Solenoid
C-7
CONN123
AF-145- 0176
Sensor Coolant Temp
B-11
CONN75
N-132-1857
Fine Swing Solenoid
C-7
CONN124
AF-145-0176
Sensor Intake Manf Air Temp
B-11
CONN76
B-170-9395
Swing Brake Solenoid
C-7
CONN125
AF-145-0176
Sensor Fuel Temp
B-11
CONN79
B-170-9395
Boom Raise Press Switch
C-8
CONN140
A-170-9396
B-170-9395
G-10
CONN80
B-170-9395
Implement Press Switch
C-8
2 Contacts
CONN16
E-167-3526
A/C Photo Sensor
F-1
CONN81
B-170-9395
Travel Press Switch
C-8
5 Contacts
4 Contacts
3 Contacts
HARNESS CONNECTOR LOCATION CHART
2 Contacts
Connectors
Connector
No. And
Machine
Location
Harness And/Or
Components
Schematic
Location
Connectors
Connector
No. And
Machine
Location
Harness And/Or
Components
Schematic
Location
CONN82
AE-140-0918
Hydraulic Tank Press Switch
A-5
CONN115
NN-128-8912
Ctwt Removal Control
Solenoid
B-10
CONN83
A-170-9396
E-167--3526
C-5
CONN126
DD-4P-9537
Injector 1
A-11
CONN84
C-128-8900
Speed Sensor
D-12
CONN127
DD-4P-9537
Injector 2
A-11
CONN86
C-128-8900
NC Clutch Solenoid
E-12
CONN128
DD-4P-9537
Injector 3
A-11
CONN87
A/C Unit
Temp Sensor
G-5
CONN129
DD-4P-9537
Injector 4
A-11
CONN88
C-128-8900
Start Aid Coolant Temp Switch
E-12
CONN130
DD-4P-9537
Injector 5
A-11
CONN89
C-128-8900
Engine Oil Level Switch
D-12
CONN131
DD-4P-9537
Injector 6
A-11
CONN91
B-170-9395
Level Finish Solenoid
A-9
CONN139
B-170-9395
X-150-6961
B-3
CONN92
B-170-9395
Travel Speed Solenoid
A-8
CONN41
A-170-9396
B-170-9395
E-10
CONN93
B-170-9395
Trenching Solenoid
A-8
CONN133
B-170-9395
C-128 -8900
C-11
CONN94
B-170-9395
Proportional Reducing Valve
A-8
CONN134
B-170-9395
C-128-8900
C-11
CONN96
AE-140-0918
Hydraulic Oil Level Switch
A-5
CONN135
B-170-9395
C-128-8900
C-11
CONN98
B-170-9395
Fuel Level Sensor
B-4
CONN59
L-116-0258
12V Socket
G-6
CONN99
U-116-0098
P-167-3591
A-4
CONN77
D-170- 6857,AN-170-6871
lmsp Lamp
I-1
CONN100
T-116-0096
P-167-3591
A-4
CONN107
E-167-3526
Cigar Lighter
E-1
CONN101 X-150-6961
P-167-3591
A-3
CONN108
H-l70-9397
Low Idle Switch
F-3
CONN102
P-167-3591
Diode
A-3
CONN109
J-167-3536
Horn Switch
I-1
CONN103
P-167-3591
Refueling Pump
A-2
CONN110
F-167-3532
M-116-0243
G-1
CONN104
B-170-9395
G-125-4868
B-3
CONN111
F-167-3532
M-116-0243
G-1
CONN105
B-170-9395
K-125-4848
B-3
CONN138
B-170-9395
Air Cleaner Switch
E-12
HARNESS CONNECTOR LOCATION CHART
2 Contacts
Bullet
Terminal
1 Contacts
2 Contacts
Related Electrical Service Manuals
Title Form Number
Alternator: 100-5047 SENR2082
3E-7577 RENR1252
Engine/Pump Control RENR3760
Electric Starting Motor: 6V-0890 SENR3860
Engine Control RENR1235
Starting and Charging RENR3761
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-6332 Solenoid: Valve - Start Aid 6.0
4I-5394 Sender: Hydraulic Oil Temp 6130 to 7500
6V-2455 Resistor: Engine Speed Pickup 110 to 200
102-8017 Resistor: Backup 52.0 ± 2.6
111-9916 Solenoid: Engine Pump Control 11.7 ± 1.2
121-1490 Solenoid: Level Finish 32.0 ± 3.2
Trenching
121-1491 Solenoid: Hydraulic Lock 32.0 ± 3.2
Swing Brake
Travel Speed
¹ At room temperature.
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
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
3E-6425 Coolant Temperature (Start Aid) 38 ± 3° C 27° C Min. Normally Closed
(100 ± 5° F) (80.6° F)
106-0179 Implement Pressure 1520 ± 98 kPa 1127 kPa MIN Normally Open
Travel Pressure (224.4 ± 14.21 psi) (163.5 psi MIN)
106-0180 Boom RaisePressure 2646.00 ± 196.00 kPa 2156.00 ± 196.00 kPa Normally Open
(383.77 ± 28.43 psi) (312.70 ± 28.43 psi)
106-0181 Aux Hydraulic Pressure 490 ± 49 kPa MAX 290 kPa MIN Normally Open
ATCH HammerPressure (71 ± 7 psi MAX) (42 psi MIN)
107-0615 Hydraulic Tank Pressure 48 ± 14 kPa 24 kPa MIN Normally Closed
(7.0 ± 2.0 psi) (3.5 psi MIN)
Wire Description
Wire
Number
Wire Color Description
Wire
Number
Wire Color Description
Power Distribution Circuits Accessory Circuits (cont'd)
101 RD Bat (+) (Not Application Specific) A589 OR Power Window Up
103 RD Aux Ckt A590 BU Power Window Down
105 RD Key Start Sw A591 PU Rear Window Limit SW
109 RD Alt Output (+) Term. C532 GN Autolube Press
110 RD Aux Ckt C537 GN A/C Photo Sensor + Sig
111 RD Aux Ckt C538 OR A/C Photo Sensor - Sig
112 PU Main Power Rly Output A524 BR Temp Potentiometer Pos 2
113 OR Opr Mon Panel B (+) Switched A525 GN Temp Potentiometer Pos 3
114 GN Warning Horn (Forward) A526 PK Electronic Water Valve Actuator
115 PK Aux Ckt A527 BU Electronic Water Valve Actuator
116 BR Aux Ckt A541 PU Flasher To Indicator Lights
118 GY Aux Ckt A592 BU Blend Door Motor (A)
120 YL Aux Ckt A593 OR Blend Door Motor (B)
124 GN A/C A594 WH Blend Door Position Feedback (+)
129 BU Aux Ckt A595 GN Blend Door Position Feedback (Signal)
135 BU Aux Ckt A596 YL Blend Door Position Feedback (-)
138 GN Auto Lube Pump To Payload Mon C529 GY Lift Press Sensor (WAS B413)
140 BU Aux Ckt C530 BU Lift Position Sensor (WAS B412)
147 PU Aux Ckt Lighting Circuits
149 PU Aux Ckt 607 PK Flood Lamps - Front
150 RD Bat (+) 615 YL Cab Flood Lamp/Rops
151 GN Aux Ckt 616 BU Boom Flood Lamp
152 BU Aux Ckt Control Circuits
154 RD Aux Ckt 763 BU Torque Converter Sw
159 RD Aux Ckt 786 RD Engine Speed Cont
160 PU Aux Ckt 788 YL Engine Speed (+)
168 RD Aux Ckt A701 GY Injector #1
175 PK Aux Ckt A702 PU Injector #2
176 YL Aux Ckt A703 BR Injector #3
177 RD Main Brkr A704 GN Injector #4
180 GN Aux Ckt A705 BU Injector #5
185 YL Aux Ckt A706 GY Injector #6
189 RD Aux Ckt A746 PK Turbo Outlet Pressure
191 WH Aux Ckt A747 GY Atmospheric Pressure
196 BU Aux Ckt A751 YL After Cooler Temp
Ground Circuits A755 PK Throttle Sw #1
200 BK Main Chassis A756 BU Throttle Sw #2
201 BK Operator Monitor Return A757 GY Throttle Sw #3
235 BK Electronic Pump Ctrl Gnd A758 BR Throttle Sw #4
Basic Machine Circuits A762 PU Elec Pump Cont Eng Speed Ground
304 WH Starter Relay No. 1 Output A768 BU Pump Control Valve #1 (+)
306 GN Starter Relay Coil To Neut Start SW Or A769 GY Pump Control Valve #2 (-)
307 OR Key Start SW To Neutral Start SW Or A770 PK Elec Pump Cont Bypass Sw
308 YL Main Power Relay Coil A771 PU Float Sw
310 PU Start Aid SW To Start Aid Sol D789 WH Injector Common 1 & 2
311 WH Start Aid Sol To Temp SW D790 OR Injector Common 3 & 4
315 GN Start Aid Breaker To Start Aid Relay D791 YL Injector Common 5 & 6
320 RD Horn Relay Coil To Sw E793 BU ATA Data Link (-)
321 BR Backup Alarm Lamp Travel Alarm E794 YL ATA Data Link (+)
322 GY Warning Horn (Forward) E799 BR PWM #1 And #2 Return
323 WH Fuel Pump Power F700 BU PWM #1 Out (3.5A)
325 PK Fuel Pump Relay F701 BR PWM #2 Out (3.5A)
329 YL Fuel Pump To Sw F702 GN Throttle (App Specific)
365 YL Fuel Pump Relay To Sw F704 OR Rh Turbine Inlet Exh Temp
386 PK Air Shutoff Solenoid Enable F713 OR Left Turbo Inlet Press
Monitoring Circuits F714 PK Right Turbo Inlet Press
403 GN Alternator (R) Term. F717 YL Sw 4
412 BU Operator Monitor Cool Flow F718 BU Sw 5
430 BU Operator Monitor Air Filter 801 PK Auto Lube Sol Or Motor
439 YL Lamp Indicator 802 YL Auto Lube Press. SW
491 PK Hydraulic Oil Temp Sensor 892 BR CAT Data Link (-)
495 GN Fuel Level 893 GN CAT Data Link (+)
496 WH Operator Monitor Panel Hyd Oil Level 954 GN Hammer Sw A
499 GY Operator Monitor Implement Oil Filter 993 BR Analog Sensor Common
A499 BU Operator Monitor Hydraulic Oil Press 994 GY Oil Pressure (Filtered)
C468 BU Engine Oil Level 995 BU Coolant Temperature
E455 BR Hydraulic Oil Filter 996 GN Engine Speed/Timing Sensor Power
F400 GY Low Oil Pressure 997 OR Analog Sensor Power (+5V)
G438 PK Autolube Low Level SW (VIMS) 998 BR Digital Sensor Return
Accessory Circuits 999 WH Primary Camshaft Speed/Timing
501 GN Wiper - Front (Low) K904 GN Pump Discharge - Signal
506 PU Washer - Front K905 RD Pump Discharge - +B
508 PU Radio Speaker - Left K906 GN Swing Brake Sol - Signal
509 WH Radio Speaker - Left (Common) K907 BU Swing Brake Sol - +B
511 BR Radio Speaker - Right K909 BU Backup SW - +B
512 GN Radio Speaker - Right (Common) K911 PK E/P Controller - RS485 (+)
521 YL A/C SW To Refrigerant SW K912 GN E/P Controller - RS485 (-)
530 OR Washer Right K915 GN Fine Swing Sw - E/P Controller
535 BU SW To Wiper SW K997 BU (+) V Sensor
575 YL Wiper - Aux L908 OR Controller RS-232C TX
576 PK Wiper - Aux L909 BU Controller RS-232C RX
578 BU Washer - Aux L968 OR Electronic Pump Control Ps Valve (-)
586 BR Aux Hydraulic - Close L969 WH Electronic Pump Control Ps Valve (+)
590 GY Wiper Sw To Intermittent Module L970 GY Elec Pump Cont To Sw Common Ret
A537 PK Seat Heater L971 GN Elec Pump Cont To Travel Press Sw
A579 OR Wiper Motor + L972 BU Low Idle SW
A580 BR Wiper Motor - L973 GN Fine Swing Cont Relay To Sol Valve
A581 GN Wiper Motor Raise L974 GN Elec Pump Ctrl Boom Raise Press SW
A582 PU Wiper Motor Stop L976 GN Excavator Fuel Pump Switch
A583 YL Power Window Interlock To Wiper Cont L977 YL Trenching Sol
A584 BU Front Window Limit SW To Wiper Cont L978 GY Level Finish Sol
A586 OR Wiper SW To Wiper Cont L981 YL Hydraulic Lock Solenoid Relay
A587 YL Power Window Cont To Safety Sol Relay L982 PK Counterweight Removal Cont Solenoid
A588 GN Safety Sol Relay To Sol T920 YL ADEM II Digital Sensr 5A
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.
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
0374 Swing Brake Solenoid
0376
Travel Alarm
0286
Oil Lamp
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
1
7
5
2
1
2
1
11
12
16
15
13
10
4
8
6
3
31
5
9
8
9
8
1
2
18
11
14
2
5
6
7
10
6
3
8
9
1
9
1
4
10
17
7
4
15
5
4
3
2
H
H
A
G
G
G
G
D
D
D
D
D
D
E
H
B
C
D
G
A
B
B
B
B
B
A
D
G
G
B
G
G
A
G
A
H
G
G
G
G
A
A
8888888
4
48
46
3
2
2
16
17
16
14
1
13
12
11
10
9
8
7
6
5
4
3
7
34
33
32
29
28
27
25
3
23
10
5
19
21
6
3
14
13
20
38
18
19
19
5
12
18
39
17
8
36
35
12
15
41
40
1
4
3
2
1
43
20
22
21
45
42
44
11
10
3
9
2
4
13
30
24
47
17
37
16
11
26
15
14
13
12
7
6
B
B
G
D
E
E
E
C
H
H
H
H
H
H
H
D
A
D
H
G
D
D
D
D
G
G
G
G
Machine
Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
3 Alarm - Travel B-7 18D Relay - Chassis Lamp H-7
4 Alternator E-11 1D Relay - Horn F-7
5 Antenna C-6 6D Relay - Main F-8
6 Battery H-11, G-11 7D Relay - Neutral Start F-7
13D Block - Terminal G-9 18 Relay - Refueling Power A-3
5D Breaker - Alt I-8 15D Relay - Starter F-8
11D Breaker - Main I-8 4D Relay - Hydraulic Lock Solenoid H-7
7 Controller F-2 19 Relay - Refueling Start A-3
8 Converter I-3 20 Relay - Refueling Stop A-3
9 Converter - 12V 5A H-6 8D Relay - Timer E-7
3B Dial - Engine Speed E-3 10D Resistor - Backup H-7
14H Engine Controller A-12 9D Resistor - Main Relay F-8
4C Fuse - Block I-4,5, 6 21 Seat With Seat Heater F-4
10 Hom B-2 5A Sensor - A/C Photo F-1
11 Lamp - Boom B-1 1H Sensor - Aim Pressure B-11
12 Lamp - Cab G-1 2H Sensor - Boost Pressure B-11
13 Lamp - Chassis A-2 3H Sensor - Coolant Temp B-11
9A Lamp - Dome B-6 23 Sensor - Fuel Level A-5
2A lighter - Cigar E-1 4H Sensor - Fuel Temp A-11
3A Meter - Service F-1 3E Sender - Hydraulic Oil Temp A-5
1A Monitor F-1 5H Sensor -Intake Manf Air Temp B-11
16D Motor - Lower Washer I-12 6H Sensor - Oil Pressure B-11
1G Motor - Lower Wiper I-1 24 Sensor - Pump Discharge Press B-8
14 Motor - Starter D-11 25 Sensor - Speed D-12
17D Motor - Washer H-12 7H Sensor - Speed/Timing B-11
6A Motor - Wiper E-1 1 Sensor - Temp G-5
15 Power Window Control C-6 26 Solenoid - Air Cond Comp Clutch E-12
16 Pump - Auto Lubrication F-12 22 Solenoid - Ctwt Removal Control B-10
17 Pump - Refueling A-2 16H Solenoid - Fan Speed Control A-10
2C Radio I-3 28 Solenoid - Fine Swing C-7
14D Relay - A/C E-7 30 Solenoid - Hammer Control C-7
2D Relay -Boom Lamp G-7 3G Solenoid - Hydraulic Lock I-1
3D Relay - Cab Lamp G-7 8H Solenoid - Injector 1 A-11
Component Location Chart
Schematic Location
Machine
Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
9H Solenoid - Injector 2 A-11 29 Switch - Ctwt Removal B-10
10H Solenoid - injector 3 A-11 39 Switch - Implement Swing Press C-8
11H Solenoid - injector 4 A-11 10B Switch - Lower Washer D-3
12H Solenoid - Injector 5 A-11 11B Switch - Lower Wiper D-3
13H Solenoid - Injector 6 A-11 1C Switch - Neutral Start I-1
1F Solenoid - Level Finish A-9 4B Switch - One Touch Low Idle F-2
31 Solenoid - Start Aid F-12 1B Switch - Panel F-2
32 Solenoid - Swing Brake C-7 9B Switch - Power Window D-3
2F Solenoid - Travel Speed A-8 8A Switch - Power Window Limit B-6, G-1
3F Solenoid - Trenching A-8 41 Switch - Refueling A-5
33 Speaker C-5 42 Switch - Refueling Start A-4
35 Switch - Air Cleaner E-12 2 Switch - Refueling Stop A-4
4G Switch - Aux Hydraulic Press H-1 8B Switch - Seat Heater D-4
12B Switch - Backup E-5 13B Switch - Speed Change D-5
34 Switch - Boom Raise Press C-8 5B Switch - Start Aid D-5
36 Switch - Coolant Level F-12 15H Switch - Start Aid Coolant Temp E-12
27 Switch - Hydraulic Tank Press A-5 2B Switch - Starter F-3
12D Switch - Disconnect I-9 4E Switch - Suction Line Shutoff Limit A-6
37 Switch - Engine Oil Level D-12 38 Switch - Travel Press C-8
7B Switch - Fine Swing Control D-4 10A Switch - Under Window Limit F-1
6B Switch - Hammer Control D-4 4A Switch - Window Limit D-1
2G Switch - Hammer Press H-1 40 Unit - Air Conditioner H-5
3C Switch - Horn I-1 4F Valve - Proportional Reducing A-8
1E Switch - Hydraulic Oil Level A-5 7A Wiper Control E-1
2E Switch - Hydraulic Oil Filter A-5
Area A = Inside of Cab
Area B = Inside of R.H. console
Area C = Inside of L.H. console
Area D = Around relay panel
Area E = Around hydraulic oil tank
Area F = Around pilot manifold
Area G = Under platform
Area H = Engine top
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).
410b Spare solenoid 2 (digital output) over current.
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
A
H
F
F
F
F
E
D
H
H
H
H
H
H
A
A
C
B
A
D
A
RENR3759
June 2000
345B Series II Excavator
Electrical System
AKJ1-UP
ALD1-UP
AKX1-UP
ALL1-UP
AMA1-UP
ALT1-UP
AMD1-UP
AMN1-UP
AMJ1-UP
AYR1-UP
©
2000 Caterpillar
All Rights Reserved
Printed in U.S.A.
G
D (NOTE G)
AN (NOTE H)
A
140-BU
801-PK
C532-GN
138-GN
138-GN
C532-GN
801-PK
140-BU
200-BK
200-BK
138-GN
C532-GN
801-PK
140-BU
140-BU
801-PK
C532-GN
138-GN
200-BK
138-GN
801-PK
140-BU
C532-GN
C532-GN
C532-GN
E985-BR-18
G438-PK-18
802-YL
140-BU
140-BU
801-PK
C532-GN
802-YL
138-GN
G438-PK-18
E985-BR-18
C532-GN
140-BU
E985-BR-18
G438-PK-18
138-GN
802-YL
C532-GN
802-YL
138-GN
G438-PK-18
138-GN
E985-BR-18
2
1
801-PK
E985-BR-18
G438-PK-18
138-GN
802-YL
C532-GN
L54
L53
L54
L53
E985-BR-18
801-PK
6
5
G438-PK-18
138-GN
6
5
802-YL
C532-GN
L52
L52
801-PK
E985-BR-18
G438-PK-18
138-GN
802-YL
C532-GN
200-BK-18
200-BK-18
C532-GN
802-YL
138-GN
G438-PK-18
200-BK-18
200-BK-18
200-BK-18
E985-BR-18
BK
GN
801-PK
C532-GN
C532-GN
200-BK-18
C532-GN
C532-GN
801-PK PK
GN
YL
GN
PK
BK
BR
BK
E985-BR-18
200-BK-18
200-BK-18
200-BK-18
G438-PK-18
138-GN
802-YL
200-BK-18
103-RD
200-BK-18
A499-BU-18
A499-BU-18A499-BU-18
HYD TANK
PRESS SW
107-0615
1
2
AE
A499-BU-18
A499-BU-18
A499-BU-18
A499-BU-18
A499-BU-18
A499-BU-18
439-YL-18
2
1
H
A
439-YL-18
439-YL-18
HYD TK IND
439-YL-18
A499-BU-18
A499-BU-18
439-YL-18
SPARE
SPARE
AG
FAN SPEED
CONT SOL
2
1
SPARE
SPARE
SPARE
SPARE
SOLENOID COMMON
FAN CONT SOL
AG
AF AG
6
5
1
2
3
4
7
F700-BU
E799-BR
8
F701-BR
T920-YL
F714-PK
F704-OR
F702-GN
F713-OR
1
3
4
E799-BR
F700-BU
P
177-RD-4
177-RD-4
AUTO LUBE
PUMP
158-0049
158-0050
ATCH
AUTO LUBE
PLUGGING SW
170-6880
ATCH
AUTO LUBE
LOW IND
170-6879
ATCH
AUTO LUBE SW
170-6878
2
NOTE H: USE WITH COLD WEATHER FOR JAPAN.
200-BK-18
112-PU-18
200-BK-18
167-3625 HE03
NOTE G: NOT USE WITH COLD WEATHER FOR JAPAN.
AT
ATCH
MAIN RELAY
RESISTOR
163-6616
(NOTE H)
310-PU-18
116-BR-14
159-RD-14
578-BU
578-BU
307-OR
AP
116-BR-14
159-RD-14
200-BK
F400-GY-18
521-YL-18
412-BU-18
499-GY-18
110-RD-14
196-BU
K909-BU-18
A587-YL-18
A588-GN-18
615-YL
320-RD-18
A770-PK-18
892-BR-18
893-GN-18
998-BR-18
F718-BU-18
F717-YL-18
C912-GN-18
149-PU
115-PK
160-PU
115-PK
114-RD
103-RD
308-YL
124-GN
307-OR
A
B
C
200-BK-18
586-BR-18
147-PU-18
K904-GN-18
430-BU-18
K906-GN-18
763-BU-18
A771-PU-18
11
12
1
2
3
4
5
6
7
8
9
10
140-BU
151-GN-18
138-GN
K997-BU-18
189-RD-14
1
2
200-BK
200-BK-18
200-BK-18
150-RD-18
111-RD-14
154-RD-18
160-PU
506-PU-18
A768-BU-18
200-BK-18
200-BK-18
200-BK
200-BK-18
200-BK-18
506-PU-18
A770-PK-18
110-RD-14
320-RD-18
149-PU
615-YL
151-GN-18
A588-GN-18
A587-YL-18
147-PU-18
K909-BU-18
196-BU
L977-YL-18
L974-GN-18
RD-00
RD-00
L971-GN-18
151-GN-18
189-RD-14
308-YL
124-GN
124-GN
K997-BU-18
L974-GN-18
L978-GY-18
L977-YL-18
L973-GN-18
151-GN-18
147-PU-18
200-BK-18
BK-00
RD-00
RD-00
BK-00
114-RD
321-BR-18
154-RD-18
111-RD-14
150-RD-18
786-RD-18
791-RD-18
791-RD-18
786-RD-18
C468-BU-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
147-PU-18
L973-GN-18
586-BR-18
200-BK
CC
L38
AA
MOTOR
WASHER
7T-8890
ATCH
LOWER WASHER
7T-8890
BATTERY
3T-5760
POS
NEGNEG
POS
ATCH
BATTERY
3T-5760
(NOTE B)
POS
NEG NEG
POS
L15
MOTOR
A A
GG (NOTE B)
L43
A
2
1
B
A
CHASSIS
FF (NOTE B)
BB
EE (NOTE B)
AA
Z
N
B
A
A
A
L46
L45
BK
BK
304-WH-8
101-RD-4
109-RD-4 109-RD-4
403-GN 403-GN
200-BK-4 200-BK-4
892-BR-18
893-GN-18
F718-BU-18
F717-YL-18
C468-BU-18
C912-GN-18
F400-GY-18
C468-BU-18
200-BK-18
E794-YL-18
E793-BU-18
A762-PU-18
788-YL-18
200-BK-18
311-WH-18
521-YL-18
177-RD-4
892-BR-18
893-GN-18
998-BR-18
C468-BU-18
521-YL-18
521-YL-18
200-BK-14
893-GN-18
892-BR-18
200-BK
200-BK-18
412-BU-18
499-GY-18
412-BU-18
998-BR-18
F718-BU-18
F717-YL-18
C912-GN-18
F400-GY-18
412-BU-18
200-BK
E794-YL-18
403-GN-18
200-BK
499-GY-18
412-BU-18
F400-GY-18
521-YL-18
E793-BU-18
A769-GY-18
491-PK-18
496-WH-18
495-GN-18
403-GN-18
788-YL-18
A762-PU-18
C468-BU-18
321-BR-18
140-BU
1
2
3
4
5
6
7
8
9
10
11
12
998-BR-18
F718-BU-18
F717-YL-18
C912-GN-18
L971-GN-18
177-RD-4
1
892-BR-18
12
11
893-GN-18
200-BK-18
A762-PU-18
788-YL-18
C468-BU-18
101-RD-4
304-WH-8
109-RD-4
140-BU
200-BK-18
K997-BU-18
10
9
8
7
6
5
4
3
2
1
1
2
3
4
6
5
892-BR-18
893-GN-18
A768-BU-18
C532-GN
607-PK
322-GY
L971-GN-18
A771-PU-18
L974-GN-18
K906-GN-18
495-GN-18
616-BU
496-WH-18
491-PK-18
L977-YL-18
763-BU-18
L978-GY-18
A768-BU-18
A769-GY-18
K904-GN-18
430-BU-18
2
200-BK-18
430-BU-18
521-YL-18
430-BU-18
321-BR-18
138-GN
200-BK-18
311-WH-18
311-WH-18
311-WH-18
311-WH-18
311-WH-18
311-WH-18
310-PU-18
310-PU-18
310-PU-18
308-YL
310-PU-18
308-YL
306-GN
386-PK
C
WH-18
A762-PU-18
A/C CLUTCH
SOL
161-3632
ALT
R
B+
788-YL-18
ENG SPEED
PICKUP
6V-2455
ATCH
START AID
COOLANT TEMP SW
3E-6425
E
C
304-WH-8
C
1
2
2
1
ENG OIL
LEVEL SW
111-4759
101-RD-4
ALTERNATOR
100-5047 (50A)
3E-7577 (75A)
A762-PU-18
788-YL-18
C
C
C
C
1
2
BK-18
C
2
1
T
109-RD-4
L51
MOTOR
CHASSIS
STARTER
MOTOR
6V-0890
304-WH-8
G S
MTRBAT
101-RD-4
RD-00
RD-00
GROUND STRAP
128-8886
AA
EE(NOTE B)
C
B
B
PRESS SW IN
COOLANT
LEVEL SW
109-9436
AIR CLEANER SW
162-6208
5
2
PRESS SW OUT
PRESS SW OUT
B
B
B
2
1
ATCH
START AID
SOL
3E-6332
C
NOTE A
B
BA
A
L42
L41
L42
L41
L44
308-YL
311-WH-18
304-WH-8
101-RD-4
403-GN
109-RD-4
1
12
8
9
2
1
6
5
3
10
11
7
200-BK-18
200-BK-18
147-PU-18
200-BK-14
8
F400-GY-18
C468-BU-18
4
E794-YL-18
E793-BU-18
A751-YL A751-YL
C967-BU
C967-BU
995-BU
995-BU
994-GY
994-GY
997-OR 997-OR
997-OR
997-OR
997-OR
997-OR
997-OR
993-BR 993-BR
993-BR
993-BR
993-BR
993-BR
993-BR
A747-GY
A747-GY
A746-PK
A746-PK
999-WH
999-WH
998-BR
998-BR
996-GN
996-GN WH
BK
BK
BK
OR
OR
OR
OR
OR
OR
GN
GN
GN
YL
YL
YL
WH
WH
WH
BK
OR
D789-WH
D789-WH
D790-OR
D790-OR
D790-OR
A701-GY
D791-YL
D791-YL
D789-WH
A706-GY
A706-GY
A701-GY
A702-PU
A702-PU
A703-BR
12
A703-BR
A704-GN
A704-GN
11
9
A705-BU
7
A705-BU
1
998-BR-18
151-GN-18
7
1
2
3
4
5
6
8
4
3
2
1
5
6
200-BK-18
151-GN-18
10
892-BR-18
L982-PK-18
200-BK-18
A762-PU-18
893-GN-18
C912-GN-18
788-YL-18
L981-YL-18
151-GN-18
F718-BU-18
151-GN-18
147-PU-18
521-YL-18
200-BK-18
200-BK-18
F717-YL-18
200-BK-14
D791-YL
200-BK-14
200-BK-18
200-BK-18
H
G
I
F
E
D
C
B
A
H
G
I
F
E
D
C
B
A
L43
C
B
B
1
C B
NN
(NOTE E)
SS
1
4
2
B
2
ECM GND STRAP
ENG OIL PRESS
GND
USER DEFN SHUTDOWN
4
34
35
36
20
22
1
23
25
+5V
SENSOR COMMON
FUEL TEMP
INTAKE MANF AIR TEMP
COOLANT TEMP
OIL PRESSURE
ATM PRESSURE
BOOST PRESSURE
ENG SP/TMG
ENG SP/TMG COMMON
+V ENG SP/TMG
SENSOR
FUEL TEMP
SENSOR
INTAKE MANF
AIR TEMP
SENSOR
COOLANT TEMP
SENSOR
OIL PRESSURE
SENSOR
ATM PRESSURE
SENSOR
BOOST PRESSURE
SENSOR
SPEED/TIMING
ENG SP/TMG
ENG SP/TMG COMMON
+V ENG SP/TMG
BOOST PRESSURE
ATM PRESSURE
OIL PRESSURE
COOLANT TEMP
INTAKE MANF AIR TEMP
+5V
SENSOR COMMON
SENSOR COMMON
+5V
+5V
SENSOR COMMON
SENSOR COMMON
+5V
+5V
SENSOR COMMON
FUEL TEMP
SENSOR COMMON
+5V
C
B
A
A
B
C
C
B
A
B
C
A
A
B
C
C
DECEL
ACCEL
ATCH CWTW
REMOVAL SW
114-0421
1
2
ATCH
CTWT REMOVAL
CONT SOL
123-2514
NN
(NOTE E)
NN
(NOTE E)
NN
(NOTE E)
INJECTOR 1
INJECTOR 2
INJECTOR 3
INJECTOR 4
INJECTOR 5
INJECTOR
SOL 6
INJECTOR
SOL 5
INJECTOR
SOL 4
INJECTOR
SOL 3
INJECTOR
SOL 2
1
A
B
C
B
26
27
28
30
29
1
37
2
23
20
8
15
9
3
30
36
31
32
33
2
1
1
2
2
1
INJECTOR COM 5&6
INJECTOR COM 1&2
INJECTOR COM 3&4
INJECTOR 6
INJECTOR
SOL 1
5
17
27
6
12
18
22
28
34
SENSOR COM
ENG CONT
1
2
2
1
A
39
40
10
11
21
8
4
29
3
37
24
6
15
CAT DATA LINK (-)
CAT DATA LINK (+)
THROTTLE
+B
C
C
B
38
19
18
17
16
14
13
12
7
2
40
39
5
9
32
26
25
24
21
19
16
14
13
11
10
38
35
3
33
2
7
4
3
ATA DATA LINK (-)
ATA DATA LINK (+)
1
B
C
L44
L51
NOTE A
NOTE A
AF
154-RD-18
322-GY
A587-YL-18
200-BK
200-BK-18
200-BK-18
200-BK-18
111-RD-14
K909-BU-18
200-BK-18
200-BK-18
320-RD-18
616-BU
200-BK
615-YL
A587-YL-18
A588-GN-18
150-RD-18
151-GN-18
200-BK-18
892-BR-18
J
H
893-GN-18
200-BK-18
F
E
D
C
B
A
G
196-BU
893-GN-18
892-BR-18
E793-BU-18
E794-YL-18
A770-PK-18
K909-BU-18
K909-BU-18
K909-BU-18
A588-GN-18
150-RD-18
196-BU
151-GN-18
110-RD-14
154-RD-18
A770-PK-18
320-RD-18
615-YL
200-BK-18
A588-GN-18
616-BU
322-GY
E793-BU-18
E794-YL-18
149-PU-18
149-PU-18
607-PK-18
149-PU
200-BK-18
200-BK-18
607-PK
607-PK
114-RD
114-RD
114-RD
115-PK
115-PK
115-PK
115-PK
607-PK
615-YL
308-YL
308-YL
304-WH-8
109-RD-8
177-RD-14
177-RD-14
177-RD-14
X
X
109-RD-4
112-PU-14
A
101-RD-4
200-BK
110-RD-14
112-PU-14
112-PU-14
112-PU-14
109-RD-4
101-RD-4
6
2
4
3
5
1
A
200-BK-18
J
101-RD-4
101-RD-4
616-BU
151-GN-18
892-BR-18
893-GN-18
E794-YL-18
E793-BU-18
200-BK-18
189-RD-14
A587-YL-18
109-RD-8
304-WH-8
200-BK
308-YL
A587-YL-18
A588-GN-18
615-YL
149-PU
320-RD-18
A770-PK-18
K909-BU-18
308-YL
189-RD-14
200-BK
308-YL
109-RD-4
K909-BU-18
K909-BU-18
A770-PK-18
E794-YL-18
E793-BU-18
892-BR-18
893-GN-18
149-PU
149-PU
196-BU
110-RD-14
196-BU
200-BK-18
189-RD-14
154-RD-18
111-RD-14
150-RD-18
786-RD-18
RELAY PANEL
150-RD-18
786-RD-18
786-RD-18
786-RD-18
196-BU
109-RD-4
791-RD-18
177-RD-10
177-RD-14
177-RD-14
177-RD-14
177-RD-14
151-GN-18
791-RD-18 791-RD-18
791-RD-18
177-RD-4
177-RD-4
112-PU-4 112-PU-4
112-PU-4
112-PU-4
112-PU-4
177-RD-4
177-RD-4
111-RD-14
L52
116-BR-14
116-BR-14
200-BK-18
L49
112-PU-18
159-RD-14
308-YL-18
308-YL-18
308-YL
307-OR
307-OR
307-OR
386-PK
386-PK
306-GN
306-GN
200-BK-18
200-BK-18
116-BR-14
308-YL
308-YL-18
160-PU-18
160-PU
160-PU
160-PU
160-PU
159-RD-14
159-RD-14
L47
L38
RELAY PANEL
A
L15
ET CONN AND ECAP CONN
CAB
LAMP RELAY
149-5050
NOTE ANOTE A
DISCONNECT SW.
7N-0718
7N-0719(NOTE B)
ALT BREAKER
9S-4693
112-PU-4
YY
BACKUP
RESISTOR
102-8017
HYD LOCK SOL RELAY
149-5050
2
12
1
5
3
4
11
10
8
9
6
7
FOR
INSP LAMP
CHASSIS
LAMP RELAY
149-5050
4
5
2
3
8
6
1
7
11
12
9
BOOM LAMP RELAY
149-5050
10
VV
177-RD-4
80A
GG
(NOTE B)
CC
L15
AD
AN
D (NOTE G)
AN (NOTE H)
A
A
A JJ
177-RD-4
177-RD-4
BUS-BAR
BREAKER 1
9S-4693
AD
JJ
80A
GND STRAP
132-1805
MAIN RELAY
RESISTOR
102-8017
(NOTE G)
177-RD-4
112-PU-4
E793-BU-18
E794-YL-18
893-GN-18
892-BR-18
616-BU
320-RD-18
109-RD-8
109-RD-4
A B
189-RD-14
308-YL
200-BK-18
200-BK-18
200-BK-18
168-RD-10
109-RD-8
110-RD-14
K909-BU-18
168-RD-10
304-WH-8
177-RD-4
114-RD-18
114-RD-18
101-RD-4
154-RD-18
308-YL
111-RD-14
RELAY PANEL
112-PU-4
177-RD-4
200-BK-18
200-BK
308-YL-18
L49
308-YL
304-WH-8
114-RD
322-GY
200-BK-18
322-GY
ATCH
MAIN RELAY
159-9108
(NOTE H)
607-PK
112-PU-18
308-YL-18
308-YL
307-OR
386-PK
308-YL
306-GN
308-YL-18
200-BK-18
159-RD-14
116-BR-14
306-GN
386-PK
L47
L49
2
1
AC (NOTE G)
AT (NOTE H)
NOTE A
NOTE A
AB
L45
L46
OUT 1
+B
IN 2
IN 1
GND
OUT 2
VV
YY
5
1
8
2
10
11
3
4
9
TIMER RELAY
111-4870
7
6
12
NEUTRAL
START RELAY
149-5050
START RELAY
125-1302
HORN RELAY
149-5050
1
3
2
4
AB
XX
B
B
D (NOTE G)
AN (NOTE H)B
G
AK (NOTE G)
AP (NOTE H)
DIODE
121-4871
MAIN RELAY
165-4026
(NOTE G)
AC (NOTE G)
AT (NOTE H)
B
XX
L52
L52
386-PK
386-PK
306-GN
306-GN
BK
BK/PK
321-BR-18
321-BR-18
200-BK-14
607-PK
607-PK
200-BK-14
K997-BU-18
PRESS SW IN
200-BK-18
K997-BU-18
K904-GN-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
A769-GY-18
A768-BU-18
L978-GY-18
763-BU-18
L977-YL-18
200-BK-18
200-BK-18
200-BK-18
A768-BU-18
A769-GY-18
200-BK-18
168-RD-10
168-RD-10
L977-YL-18
763-BU-18
L978-GY-18
A768-BU-18
496-WH-18
616-BU
322-GY
495-GN-18
491-PK-18
A769-GY-18
491-PK-18
496-WH-18
495-GN-18
L971-GN-18
A771-PU-18
K904-GN-18
L974-GN-18
K906-GN-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
K997-BU-18
200-BK-18
200-BK-18
L978-GY-18
763-BU-18
L977-YL-18
200-BK-18
200-BK-18
200-BK-18
K906-GN-18
200-BK-18
499-GY-18
499-GY-18
A771-PU-18
L974-GN-18
K906-GN-18
L971-GN-18
A771-PU-18
L974-GN-18
K906-GN-18
200-BK-18
L971-GN-18
A771-PU-18
L974-GN-18
200-BK-18
200-BK-18
200-BK-18
616-BU
322-GY
200-BK-18
321-BR-18
200-BK-18
200-BK-18
K904-GN-18
L973-GN-18
147-PU-18
200-BK-18
586-BR-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
L971-GN-18
L29
2
1
B
ATCH
TRAVEL ALARM
3E-7738
L41
L42
PUMP DISCHARGE
PRESS SENSOR
106-0178
SIGNAL
GROUND
+B
BK-18
BR-18
YL-18
B
C
B
A
CHASSIS
B
L28
L45
L46
BBBB
2
1
B
1
2
ATCH
HAMMER CONT
SOL
116-3413
ATCH
FINE SWING
SOL
107-7056
BOOM RAISE
PRESS SW
106-0180
1
2
B
2
12
1
ENG/PUMP CONT
SOL
111-9916
LEVEL FINISH
SOL
121-1490
2
1
TRENCHING SOL
121-1490
TRAVEL SPEED
SOL
121-1491
N
2
1
B
1
22
1
2
1
B
SWING
BRAKE SOL
121-1491
IMPLEMENT
PRESS SW
106-0179
152-BU
147-PU-18
147-PU-18
120-YL
140-BU150-RD-18
150-RD-18
185-YL-18
118-GY
307-OR
120-YL
TRAVEL
PRESS SW
106-0179
512-GN-18
511-BR-18
509-WH-18
508-PU-18
200-BK-18
615-YL-18
200-BK
185-YL-18
113-OR-18
115-PK
129-BU
180-GN
114-RD
115-PK
615-YL
114-RD
114-RD
112-PU-14
124-GN
200-BK
200-BK-18
115-PK
200-BK
521-YL-18
30A
168-RD-10
154-RD-18
200-BK-18
111-RD-14
115-PK
147-PU-18
175-RD-14
175-RD-14
320-RD-18
151-GN-18
189-RD-14
196-BU
113-OR-18
118-GY
191-WH-14
152-BU
140-BU
K905-RD
105-RD
185-YL-18
150-RD-18
149-PU
110-RD-14
200-BK
150-RD-18
113-OR-18
175-RD-14
110-RD-14
105-RD
114-RD
K905-RD
149-PU
185-YL-18
113-OR-18
140-BU
120-YL
147-PU-18
147-PU-18
196-BU
176-YL
177-RD-14
K905-RD
112-PU-14
191-WH-14
129-BU
129-BU
149-PU
105-RD
112-PU-14
129-BU
315-GN-18
315-GN-18
315-GN-18
307-OR
307-OR
191-WH-14
103-RD-18
200-BK-18
112-PU-14
112-PU-14
112-PU-14
112-PU-14
103-RD
112-PU-4
177-RD-10
177-RD-14
177-RD-14
177-RD-14
509-WH-18
508-PU-18
511-BR-18
110-RD-14
512-GN-18
147-PU-18
C537-GN-18
118-GY
196-BU
175-RD-14
113-OR-18
152-BU
120-YL
140-BU
150-RD-18
175-RD-14
149-PU
124-GN
110-RD-14
111-RD-14
120-YL
147-PU-18
320-RD-18
151-GN-18
118-GY
154-RD-18
177-RD-14
150-RD-18
200-BK-18
200-BK
135-BU
120-YL
320-RD-18
154-RD-18
151-GN-18
200-BK
191-WH-14
K905-RD
615-YL
150-RD-18
105-RD
189-RD-14
124-GN
521-YL-18
113-OR-18
196-BU
120-YL
200-BK
112-PU-14
112-PU-14
C538-OR-18
189-RD-14
111-RD-14
112-PU-14
152-BU
200-BK
615-YL
112-PU-14
175-RD-14
200-BK
103-RD
124-GN
159-RD-14
159-RD-14
177-RD-10
116-BR-14
160-PU
113-OR-18
168-RD-10
Z
L46
116-BR-14
124-GN
159-RD-14
10A
103-RD
124-GN
160-PU
124-GN
113-OR-18
160-PU
116-BR-14
103-RD
159-RD-14
160-PU
315-GN-18
5A
10A
10A
10A
10A
5A
15A
10A
5A
J
A
9
1
5
11
7
3
L34
L22
10A
4
7
15A
10A
10A
A
J
15A
10A
L17L17
12
11
3
1
7
6
2
8
9
5
10
J
A
A
3
TEMP SENSOR
128-2163
4
1
6
15A
8
2
J
A
3
12
4
10
2
6
8
10A
6
1
5
A/C UNIT
130-0250
ATCH
HEATER UNIT
139-7258
4
2
1
2
A
PLATFORM
CHASSIS
GROUND STRAP
7G-1060
ATCH
ANTENNA CABLE
111-4846
FUSE
5A 139-5345
10A 9W-1442
15A 9W-1441
A
5
L
4
6
3
L
ATCH
12V SOCKET
121-0987
ATCH 12V5A
CONVERTER
119-1733
2
5
1
12V MEMORY
24V MEMORY
24V IN
GND
GND
12V OUT
8
6
7
4
1
5
2
3
FUSE BASE
111-4812
S
A
J
6
3
4
5
2
1
L17
L16
L24
L36
L20
L19
L21
L18
E
L34
L34
L20
L19
L3
L36
L36
L35
10A
5A
10A
L45
307-OR
315-GN-18
310-PU-18
103-RD
310-PU-18310-PU-18
200-BK
103-RD
103-RD
315-GN-18315-GN-18
530-OR-18
576-PK
A537-PK
576-PK
575-YL
535-BU
535-BU
530-OR-18
530-OR-18
308-YL
575-YL
590-GY-18
501-GN-18
A586-OR-18
113-OR-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
A590-BU-14
A589-OR-14
K915-GN-18
147-PU-18
586-BR-18
A769-GY-18
A768-BU-18
K906-GN-18
185-YL-18
K909-BU-18
K907-BU-18
A770-PK-18
615-YL
A586-OR-18
501-GN-18
590-GY-18
A589-OR-14
A590-BU-14
307-OR
615-YL
307-OR
191-WH-14
191-WH-14
L973-GN-18
L972-BU-18
L969-WH-18
L968-OR-18
F717-YL-18
535-BU
786-RD-18
530-OR-18
530-OR-18
615-YL
590-GY-18
200-BK
200-BK
615-YL
615-YL
325-PK-18
200-BK-18
200-BK-18
191-WH-14
103-RD
403-GN-18
403-GN-18
403-GN-18
403-GN-18
200-BK-18
200-BK-14
200-BK-14
403-GN-18
191-WH-14
191-WH-14
191-WH-14
191-WH-14
325-PK-18
200-BK-18200-BK-18
200-BK-18
491-PK-18
499-GY-18
496-WH-18
103-RD
103-RD
K997-BU-18
K997-BU-18
B
B
6
1
3
4
535-BU
535-BU
152-BU
152-BU
152-BU
535-BU
MANUAL IND
LEVEL IND
200-BK-18
530-OR-18
200-BK-18
495-GN-18
2
3
4
1
1
4
3
2
306-GN-18
325-PK-18
496-WH-18
200-BK-18
BK
YL
191-WH-14
200-BK-14
200-BK-14
K912-GN-18
K911-PK-18
403-GN-18
191-WH-14
K911-PK-18
K912-GN-18
A586-OR-18
590-GY-18
501-GN-18
200-BK-14
118-GY
615-YL
506-PU-18
403-GN-18
A583-YL-18
A584-BU-18
A584-BU-18
A583-YL-18
A589-OR-14
A590-BU-14
200-BK-14
103-RD
512-GN-18
511-BR-18
509-WH-18
508-PU-18
615-YL
A587-YL-18
615-YL
506-PU-18
A587-YL-18
K997-BU-18
103-RD
A589-OR-14
A590-BU-14
590-GY-18
501-GN-18
A586-OR-18
615-YL
103-RD
508-PU-18
509-WH-18
511-BR-18
512-GN-18
118-GY
103-RD
103-RD
103-RD
506-PU-18
118-GY
200-BK-18
200-BK-14
200-BK-14200-BK-14
200-BK-18
200-BK
129-BU
129-BU
200-BK-18
129-BU
A586-OR-18
506-PU-18
501-GN-18
403-GN-18
200-BK-18
K911-PK-18
K912-GN-18
A583-YL-18
A584-BU-18
A591-PU-18 A583-YL-18
A587-YL-18
A584-BU-18
A584-BU-18
C537-GN-18
200-BK-18
A591-PU-18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
C538-OR-18
103-RD
A587-YL-18
168-RD-18
322-GY
MANUAL SW
491-PK-18
200-BK-18
495-GN-18
616-BU
495-GN-18
200-BK-18
616-BU
168-RD-10
496-WH-18
GROUND
607-PK
607-PK
+B
168-RD-10
103-RD
103-RD
499-GY-18
WH-18
WH-18
WH-18
WH-18 E455-BR-18
E455-BR-18
491-PK-18
200-BK-18
322-GY
325-PK-18
365-YL-18
499-GY-18
200-BK-18
L976-GN-18
10A
5A
306-GN
A590-BU-14
AK (NOTE G)
AP (NOTE H)
306-GN306-GN
386-PK
A589-OR-14
386-PK
386-PK
2
1
HH BHH
1
SIGNAL
3
2
4
+B
SIGNAL
GROUND
HYD OIL
FILTER SW
143-8037
AE
B AE
4
11
10
12
C532-GN
8
9
7
6
1
2
5
3
A
E
1
2
ATCH
SUCTION LINE
SHUTOFF LIMIT SW
3E-5181
AE
HYD OIL
FILTER SW
143-8037
GROUND
SIGNAL
+B
4
2
1
AEAE
AE
HYD OIL
TEMP SENDER
4I-5394
FUEL LEVEL
SENSOR
105-9911
4
1 2
3
ATCH
REFUELING
LEVEL SW
5C-6108
2
1
HYD OIL
LEVEL SW
111-4760
2
T
1
B
CAB
DOME LAMP
096-0721
2
3
4
5
6
1
8
7
ATCH SPEAKER(L)
7Y-5505
ATCH SPEAKER(R)
7Y-5505
2
1
8
3
5
4
7
6
ATCH POWER
WINDOW LIMIT SW
117-6306 (NOTE C)
ATCH POWER
WINDOW CONT
117-6305
7
6
5
4
3
8
1
2
5
4
3
2
1
6
F
F
F
F
F
F E E
A A A
L6
L7
ATCH
ANTENNA
106-0036
R. LIMIT
GND
F. LIMIT
+B
WIPER
NEUTRAL
SW. DOWN
SW. UP
F
L5
L25
L4
L3
L19
L20
L25
L2
L27
L26
L35
L27
L26
F
A
L6
L28
L29
V AE
3
SIGNAL
1
2
U U
U
ATCH
REFUELING
PUMP SW(NO)
6T-9442
P
T
TT
ATCH
REFUELING
PUMP SW(NC)
9X-4184
P
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
A590-BU-14
A589-OR-14
L969-WH-18
L968-OR-18
K915-GN-18
K907-BU-18
191-WH-14
308-YL
791-RD-18
578-BU
578-BU
A537-PK
615-YL
2
1
586-BR-18
535-BU
A770-PK-18
A769-GY-18
A768-BU-18
K906-GN-18
615-YL-18
L973-GN-18
535-BU
791-RD-18
786-RD-18
105-RD
185-YL-18
615-YL
147-PU-18
113-OR-18
A586-OR-18
501-GN-18
590-GY-18
307-OR
308-YL
K909-BU-18
200-BK
L969-WH-18
200-BK-18
A770-PK-18
L968-OR-18
200-BK-18
200-BK
200-BK-18
615-YL-18
615-YL-18
200-BK-18
L973-GN-18
K907-BU-18
200-BK-18
200-BK-18
615-YL-18
615-YL-18
586-BR-18
147-PU-18
615-YL-18
K909-BU-18
200-BK-18
200-BK-18
200-BK-18
185-YL-18
F718-BU-18
998-BR-18
K915-GN-18
998-BR-18
A769-GY-18
F718-BU-18
615-YL-18
A768-BU-18
K906-GN-18
998-BR-18
615-YL-18
185-YL-18
615-YL-18
615-YL-18
200-BK-18
185-YL-18
535-BU
F717-YL-18
F718-BU-18
F717-YL-18
308-YL
105-RD
124-GN
A A
7
8
1
6
5
4
3
2
H
H
6
8
1
7
4
5
3
2
L18
ATCH
SEAT WITH
SEAT HEATER
150-2201
12
1
11
8
2
12
9
10
11
4
3
2
1
9
8
2
7
6
5
4
3
10
1
4
5
6
1
7
3
3
H
H
AA
H
2
A
H
4
A
L4
L25
L4
L33
L21
L32 L31 L10 L9 L8
H
L8
L9
L10
L31
HH
L33
L33
L33
L20
L19
L3
L25
L4
L35
L4
L25
L3
L19
L20
ATCH START
AID SW
111-4784
(NOTE F)
H
L11
ATCH FINE
SWING CONT SW
111-4788
TT
H
ATCH HAMMER
CONT SW
111-4787
H
BACKUP
EPR VALVE SW
114-0421
H H
200-BK
200-BK
200-BK
200-BK
615-YL
615-YL
315-GN-18
310-PU-18
103-RD
615-YL
954-GN-18
954-GN-18
954-GN-18
235-BK-14
200-BK-14
A587-YL-18
506-PU-18
403-GN-18
A771-PU-18
788-YL-18
A762-PU-18
763-BU-18
C468-BU-18
321-BR-18
491-PK-18
495-GN-18
430-BU-18
496-WH-18
K904-GN-18
235-BK-14
200-BK-14
586-BR-18
K906-GN-18
A768-BU-18
A769-GY-18
A770-PK-18
K909-BU-18
A588-GN-18
A588-GN-18
196-BU
151-GN-18
118-GY
512-GN-18
511-BR-18
509-WH-18
508-PU-18
113-OR-18
185-YL-18
147-PU-18
147-PU-18
147-PU-18
147-PU-18
147-PU-18
140-BU
1
2
151-GN-18
196-BU
110-RD-14
200-BK
103-RD
200-BK
200-BK 499-GY-18
F400-GY-18
412-BU-18
140-BU
200-BK-18
200-BK-18
200-BK
147-PU-18
200-BK-18
F717-YL-18
615-YL
615-YL
200-BK
200-BK
129-BU
177-RD-4
168-RD-10
168-RD-10
168-RD-10
105-RD
200-BK
K997-BU-18
159-RD-14159-RD-14
113-OR-18
L973-GN-18
L971-GN-18
L54
115-PK
152-BU
521-YL-18
103-RD
124-GN
L977-YL-18
320-RD-18
320-RD-18
103-RD
200-BK
615-YL
101112 9 8 7 6 5 4 3 2 1
101112 9 8 7 6 5 4 3 2 1
110-RD-14
116-BR-14
L974-GN-18
L978-GY-18
998-BR-18
116-BR-14
F718-BU-18
135-BU-18
200-BK-18
113-OR-18
115-PK
191-WH-14
168-RD-10
189-RD-14
200-BK-18
113-OR-18
135-BU-18
168-RD-10
ANTENNA
135-BU-18
200-BK-18
C912-GN-18
149-PU
791-RD-18
786-RD-18
L53
521-YL-18
147-PU-18
308-YL
147-PU-18
892-BR-18
149-PU
200-BK
200-BK-18
615-YL
615-YL
114-RD
615-YL
A588-GN-18
200-BK-18
954-GN-18
114-RD
200-BK-18
200-BK-18
A584-BU-18
A584-BU-18
615-YL-18
K905-RD
200-BK-18
160-PU
111-RD-14
ATCH RADIO FOR OUTSIDE JAPAN
189-RD-14
160-PU
200-BK-18
ATCH RADIO FOR JAPAN
150-RD-18
200-BK-18
200-BK-18
C
B
A
320-RD-18
154-RD-18
111-RD-14
150-RD-18
151-GN-18
200-BK-18
200-BK-18
113-OR-18
103-RD-18
200-BK-18
L970-GY-18
200-BK-18
2
4
150-RD-18
154-RD-18
1
3
200-BK-14
508-PU-18
509-WH-18
511-BR-18
512-GN-18
200-BK-14
615-YL
200-BK
154-RD-18
147-PU-18
893-GN-18
576-PK
535-BU
575-YL
307-OR
535-BU
575-YL
576-PK
A/C
RELAY
149-5050
578-BU
IGN
M MF
Y
2
1
3
4
7
6
8
5
Y
TO RADIO
CONVERTER
134-1346
B
C
A
IN (+BAT)
GND
OUT (+12V)
W
PLATFORM
A
ATCH
AM RADIO
136-4006
Y
L22
L17
L15
L22
A
ATCH
HAMMER
PRESS SW
106-0181
1
2
2
1
L21
L20
J
PLATFORM
A
ATCH POWER
WINDOW LIMIT SW
117-6306 (NOTE C)
L24
L19
J
HYD
LOCK SOL
121-1491
L15
L17
S
L14
SPEAKER (+)
SPEAKER (-)
BUCK UP
GND
SPEAKER (+)
ACC (+)
ILLUMI (+)
SPEAKER (-)
NEUTRAL START
LIMIT SW
111-4799
HORN SW
128-2134
L15
A
L20
L21
L19
L3
L18
L3
L18
L7
L14
F
OPERATOR STATION
ATCH
CAB LAMP
140-0853
ATCH
AM/FM RADIO
153-2444
MM
2
1
ATCH LOWER
WIPER MOTOR
113-3452
+
S +1
-
MOTOR
FF
ATCH
AUX HYD
PRESS SW
106-0181
A
307-OR
A586-OR-18
615-YL
530-OR-18
BACKUP
THRT SW
110-7884
578-BU
ATCH SEAT
HEATER SW
111-4783
H
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
499-GY-18
200-BK
200-BK
K997-BU-18
Y/G
Y/W
200-BK-14
535-BU
152-BU
535-BU
954-GN-18
140-BU
C
B
A
403-GN-18
140-BU
E985-BR-18
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
L977-YL-18
235-BK-18
L53
L54
892-BR-18
893-GN-18
K997-BU-18
235-BK-18
C468-BU-18
K907-BU-18
K915-GN-18
K911-PK-18
K912-GN-18
L909-BU-18
L908-OR-18
K904-GN-18
235-BK-18
L974-GN-18
200-BK
308-YL-18
200-BK-18
200-BK-18
530-OR-18
200-BK-18
A590-BU-14
A589-OR-14
200-BK-18
200-BK-18
615-YL-18
615-YL-18
535-BU
575-YL
200-BK-18
200-BK-18
191-WH-14
200-BK-18
200-BK-18
L978-GY-18
615-YL-18
615-YL-18
615-YL-18
576-PK
C912-GN-18
200-BK
200-BK
103-RD
A758-BR-18
118-GY
A757-GY-18
129-BU
A756-BU-18
A755-PK-18
308-YL
506-PU-18
A586-OR-18
501-GN-18
K912-GN-18
A584-BU-18
201-BK-18
103-RD
5
4
3
2
1
412-BU-18
200-BK-18
200-BK
A582-PU
200-BK-18
A581-GN
A583-YL-18
A580-BR
K911-PK-18
590-GY-18
403-GN-18
C538-OR-18
C537-GN-18
200-BK-14
200-BK-18
A584-BU-18
201-BK-18
200-BK-18
A579-OR
L972-BU-18
200-BK-18
200-BK-18
113-OR-18
791-RD-18
786-RD-18
501-GN-18
590-GY-18
105-RD
308-YL
6
K905-RD-18
K905-RD-18
307-OR
200-BK
W.INT (6)
WASH
E/P CONT
157-3191
NOTE A
ATCH UNDER
WINDOW LIMIT SW
129-6466
E E
MONITOR +B OUT
FACTORY
ADJ CONN
THROTTLE DIAL S1
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
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
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
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
OPTION SW
37
4
3
OPTION SENSOR (PWM)
1
16
19
5
OPTION SENSOR (PWM)
32
33
14
11
34
JOY STICK +B OUT
H
ATCH LOWER
WIPER SW
111-4785
ATCH LOWER
WASHER SW
111-4786
ATCH POWER
WINDOW SW
111-4789
HH
H
L6
E
CAB
E
E
E
+
H
ONE TOUCH
LOW IDLE SW
128-2134
+B
L. CHASSIS
L. BOOM
WASH
W. LOW
W.INT (3)
GND
GND
LIGHT
RS485-
+B
MAIN
RS485+
W. CCW
W. CW
REV
STOP
GND
INT (6)
ACC
WA+
LOW
RISE.S
INT (3)
WIPER CUT
WIPER
MOTOR
122-9603
WIPER CONT
155-7042
L11
L8
E
L1
A
A
E
L7
WINDOW
LIMIT SW
124-3974 (NOTE D)
S4
S3
S2
S1
COM
OPTION SW
H
MONITOR
151-9385
SWITCH PANEL
153-2501
KEY SW
9G-7641
H
A/C PHOTO
SENSOR
128-2162
-
SERVICE
METER
6T-7337
THROTTLE
POS SW
106-0107
MOTOR
EE
E
R
C
S
B
E
OFF
ON
ST
CIGAR
LIGHTER
9W-0335
D (NOTE G)
AN (NOTE H)
308-YL
308-YL-18
200-BK-18
200-BK-18
325-PK-18
235-BK-14 235-BK-18
235-BK-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
K912-GN-18
K911-PK-18
K915-GN-18
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
499-GY-18
C912-GN-18
K997-BU-18
K997-BU-18
K997-BU-18
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
365-YL-18
329-YL-18
329-YL-18
323-WH-14
323-WH-14
200-BK-18
200-BK-18
325-PK-18
168-RD-14
168-RD-10
200-BK-10
200-BK-10
200-BK-18
200-BK-18
200-BK
200-BK-18
G438-PK-18
138-GN
200-BK
200-BK
200-BK
200-BK
322-GY
322-GY
322-GY
329-YL-18
802-YL
C532-GN
200-BK-14
365-YL-18
892-BR-18
954-GN-18
K905-RD-18
200-BK
168-RD-18
168-RD-18
168-RD-18
168-RD-18
168-RD-18
200-BK
F400-GY-18
31
L976-GN-18
L976-GN-18
L976-GN-18
365-YL-18
200-BK
K905-RD
322-GY
K905-RD
322-GY 322-GY
200-BK
200-BK
200-BK
200-BK
616-BU
607-PK
616-BU
168-RD-10
607-PK
616-BU
616-BU
200-BK
L976-GN-18
OPERATOR STATION
607-PK
L976-GN-18
200-BK
616-BU
893-GN-18
412-BU-18
K905-RD-18
HH
1
ATCH
REFUELING
POWER RELAY
165-4026
X
X
4
AC
YY
VV
AK
P
2
AF
AE
NOTE A
NOTE A: THE FOLLOWING WIRE PAIRS MUST BE TWISTED
1
NN
NOTE E: USE WITH CTWT REMOVAL.
403-GN-18
G
NOTE F: NOT USE WITH FINE SWING CONT. SW.
B
V
Z
NOTE B: USE WITH COLD WEATHER.
FOR A SINGLE SHEET VERSION OF THIS SCHEMATIC
CONTACT DESIGN CONTROL.
COMPONENTS ARE SHOWN INSTALLED ON A FULLY
OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.
THIS SCHEMATIC IS FOR THE 345B-2 EXCAVATOR.
GG
FF
EE
CC
BB
AA
CABLE AS.
WIRE AS.
N
M
L
K
J
H
F
E
D
C
IDENT PART NO. LOC
HARNESS AS.
Y
XX
TT
S
T
A
200-BK-14
W
U
NOTE D: NOT NECESSITY FOR ELECTRIC OPENABLE WINDSHIELD.
NOTE C: USE WITH ELECTRIC OPENABLE WINDSHIELD.
P
A-10
G-9 (NOTE H)
A-3
A-12
A-5
B-10 (NOTE E)
B-2
F-10
A-6
C-7
C-7
G-1
H-6
B-2
H-5
F-4
C-6
C-5
G-9 (NOTE G)
C-12
H-3
H-4
A-4
C-2
H-3
A-4
A-3
170-6985
170-6871
150-6961
145-0176
140-0918
128-8912
125-4868
170-9395
121-1044
145-0551
132-1857
116-0243
116-0258
125-4848
167-3536
170-9397
167-3532
167-3526
170-6857
128-8900
116-0103
111-4841
116-0096
170-9396
138-5127
116-0098
167-3591
A
A
A
A
A
AD
AB
JJ
A
12
7
8
9
10
1
11
6
5
4
3
2
1
6
2
5
3
4
2
3
4
5
6
1
8
7
CONNECTOR
ELECTRICAL CONNECTION
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
B
X
DIODE
121-1022
SS
F-8 (NOTE H)
F-8 (NOTE H)
A-4
F-8 (NOTE G)
I-8
I-8
I-8 (NOTE G)
I-9 (NOTE B)
G-11 (NOTE B)
G-11 (NOTE B)
I-9
H-11
H-12
F-8
D-4 (NOTE F)
I-8
F-8
I-8
C-10
170-6995
167-3493
132-1827
170-6994
150-6966
150-6967
167-3477
116-0242
116-0080
128-8898
125-4727
116-0080
128-8884
149-5060
116-0237
167-3479
149-5059
167-3478
132-1845
GB
K
2
3
2
B
1
L5
L7
L6
ATCH
REFUELING
START RELAY
149-5050
G
G
X
B
L2
L1
B
ATCH
BOOM LAMP
153-2521
L4
CHASSIS
K
ATCH
REFUELING PUMP
165-1436
HORN
1R-9548
K
P
P
+
-
1
2
ATCH
REFUELING
STOP RELAY
149-5050
P
P
L2
L3
L2
CHASSIS
LAMP
153-2523
153-2521 (NOTE E)
ATCH
BOOM LAMP
153-2521
2
1
L7
HORN
1R-9549
L6
CONN117
CONN
126
CONN
CONN
CONN
CONN
CONN
127
128
129
130
131
CONN42
CONN119
CONN120
CONN121
CONN122
CONN123
CONN124
CONN125
CONN146
CONN90
CONN132
CONN115
CONN79
CONN80
CONN81
CONN74
CONN75
CONN76
CONN62
CONN63
CONN64
CONN67
CONN
41
CONN
CONN
CONN
CONN
58
60
61
CONN140
CONN56
CONN57
55
CONN
CONN
CONN
CONN145
114
53
54
CONN112
CONN113
CONN133
CONN134
CONN135
CONN116
CONN84
CONN89
CONN88
CONN86
CONN138
CONN70
CONN71
CONN72
CONN65
CONN143
CONN85
CONN68
CONN98
CONN73
CONN137
CONN96
CONN82
CONN97
CONN95
CONN6 CONN7 CONN8 CONN9
CONN
CONN
24
CONN
CONN
CONN
83
25
26
27
CONN10
CONN11
CONN12
CONN
CONN
CONN
17
144
CONN18 CONN19
CONN20 CONN21 CONN22
23
CONN
CONN
CONN
CONN
CONN78
CONN40
35
CONN33 CONN34 CONN36 CONN37
CONN38
44
43
87
CONN
CONN
CONN
45
46
59
CONN
99
CONN
CONN
CONN
CONN
CONN
CONN
CONN
139
136
49
101
100
102
103
CONN105
CONN104
CONN
CONN3CONN4 CONN5
106
CONN1
CONN
CONN
CONN
CONN31
CONN66
CONN142
28
29
30
CONN141
CONN32
CONN108
CONN2
CONN13
CONN
14
CONN107
CONN15
CONN16
CONN110
CONN111
CONN47
CONN
CONN
51
CONN
CONN52
109
50
CONN48
L31
L9
L10
L32
L21
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
TO MACHINE STRUCTURE
307-OR
DIGITAL OUT (-)
DIGITAL OUT (-)
DIGITAL OUT (-)
CONN
91
CONN CONN
CONN
92 93
94
CONN69
E95978
ALL DASHED LINES ARE ATTACHMENTS.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
OPERATOR MONITOR.
PANEL LAMP CIRCUIT.
WIPER/WASHER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE CONTROL CIRCUIT.
TURN SIGNAL CIRCUIT.
START AID CIRCUIT.
ENGINE/PUMP CONTROL.
REFUELING PUMP
START AID
E/P CONT
LOWER WASHER/WIPER
FINE SWING
FLOW CONT
CIGAR LIGHTER
12V 5A SOCKET
LUBRICATOR
AUX CKT
HYD LOCK SW
HYD LOCK SOL
PWR WINDOW
WASHER/WIPER
A/C RELAY
INSP LAMP
RADIO
BACKUP
HORN
AUX CKT
KEY SW
CHASSIS LAMP
FAN
BOOM LAMPTIMER RELAY CAB LAMP
DOME LAMP
A/C /HEATER
SWITCH PANEL
