Trailer Brake Control Module: Locations

Wheels/Vehicle Underbody Component Views

Left Rear Frame and Underbody Components - 1 of 2




1 - Trailer Connector (UY7)
2 - Chassis Harness
3 - Camper/Trailer Harness
4 - Camper Trailer Blunt Cuts (UY2)

Left Rear Frame and Underbody Components - 2 of 2




1 - Rear Bumper
2 - Junction Block -Rear Lamps
3 - Data Link Resistor
4 - Trailer Connector (except MEX/EXP)

Rear Fram and Underbody Components (10 Series)




1 - Trailer Brake Control Relay (JL1)
2 - Trailer Brake Control Module (JL1)
3 - Trailer Connector (Except MEX/EXP)
4 - Fuel Pump Flow Control Module
5 - Data Link Resistor (Except LU3/LY6)

Rear Frame and Underbody Components (20/30 Series)

Left Rear Frame Rail (20/30 Series):

1 - Trailer Connector (except MEX/EXP)
2 - Trailer Brake Control Module (JL1)
3 - Trailer Brake Control Relay (JL1)

Rear Frame and Underbody Components (31 Series)

Right Rear Frame Rail (31 Series):

1 - Trailer Brake Control Relay
2 - Trailer Brake Control Module

Rear Frame and Underbody Components (JL4)




1 - Wheel Speed Sensor (WSS) -Left Rear
2 - Wheel Speed Sensor (WSS) -Right Rear