Fuel Pump: Locations

Wheels/Vehicle Underbody Component Views

Rear Underbody Components (except HP2)




1 - Data Link Resistor 1
2 - Rear Frame - Short Wheelbase
3 - Rear Frame - Long Wheelbase
4 - Data Link Resistor 1
5 - Data Link Resistor 1
6 - Rear Frame - Long Wheelbase HD

Rear Underbody Components




1 - Data Link Resistor 1 (HP2)
2 - Shock Absorber Actuator - Right Rear (Z55)
3 - Wheel Speed Sensor (WSS) - Right Rear
4 - Side Object Sensor - Right (UFT)
5 - Electronic Suspension Control (ESC) Module
6 - Trailer Connector
7 - Automatic Level Control (ALC) Compressor
8 - Side Object Sensor - Left (UFT)
9 - Wheel Speed Sensor (WSS) - Left Rear
10 - Shock Absorber Actuator - Left Rear (Z55)
11 - Evaporative Emissions (EVAP) Canister Vent Solenoid Valve

Rear Underbody Components (10 Series without HP2)




1 - Evaporative Emissions (EVAP) Canister
2 - Data Link Resistor 1
3 - Trailer Brake Control Relay (JL1)
4 - Fuel Pump/Trailer Brake Control Module (JL1)/Fuel Pump Flow Control Module (without JL1)
5 - Chassis Harness
6 - Fuel Pump and Sender Assembly - Front

Underbody Fuel System Components (Short Wheel Base without HP2)




1 - Fuel Pump and Sender Assembly - Front
2 - Fuel Tank Pressure (FTP) Sensor (except HP2)
3 - Evaporative Emissions (EVAP) Canister
4 - Evaporative Emissions (EVAP) Canister Vent Solenoid Valve

Rear Suspension and Fuel System Components




1 - Trailer Brake Control Relay (JL1)
2 - Fuel Pump Flow Control Module (HP2)/Fuel Pump/Trailer Brake Control Module (20 Series with JL1)
1 - Electronic Brake Control Module (EBCM)
4 - Suspension Position Sensor - Right Rear
5 - Shock Absorber Actuator - Right Rear (Z55)
6 - Electronic Suspension Control (ESC) Module (SWB)
7 - Automatic Level Control (ALC) Compressor (Z55)
8 - Shock Absorber Actuator - Left Rear (Z55)
9 - Suspension Position Sensor - Left Rear