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Auxiliary Brake
Description:
The Auxiliary Brake parameter is programmed to identify
the connection of the auxiliary brake relay to the ECM.
This feature is used in conjunction with an aftermarket
braking device installed on the vehicle. However,
operation of the auxiliary brake and relay is inhibited
during undesirable engine operating conditions (such as
while the engine injectors are being fueled).
Available:
C-10, C-12, C-15, C-16, C11, C13, C15 heavy duty engines
and all EPA’07 and newer on-Highway engines
Range:
Engine Range
Cat
Default
Pre-2007 J1/P1:12 None
EPA’07 and
newer C7, C9,
C13 & C15
J1/P1: 10, 11,
12, 13, 19, 20
High Side Driver
(2 Amp Output)
None
J1/P1: 29,
30, 31
Low Side Driver
(Sensor Common)
Note: The Auxiliary Brake Output is part of the Caterpillar
Multi I/O System. Both High Side (2 Amp Output) or Low
Side (Sensor Common) Drivers can be programmed.
Failure to properly program the Auxiliary Brake Output
could cause undesired operation or damage to chassis
components.
Output Selection