Control Units
CONTROL UNITS LOCATION
| Component | Location |
|---|---|
| Accessory DC Power Control Module | Right rear of engine compartment. See Figure. |
| Automatic Transmission Auxiliary Fluid Pump Control Module | Left side of engine compartment. See Figure. |
| Blower Motor Control Module (CJ2) | Lower right side of HVAC module. See Figure. |
| Blower Motor Control Module (C67) | Lower right side of HVAC module. See Figure. |
| Body Control Module (BCM) | Lower left side of dash. See Figure. |
| Central Sequential Fuel Injection (SFI) Module (1) | Top rear of engine. See Figure. |
| Chime Module | Center of dash, behind radio. |
| Drive Motor Generator Battery Control Module | Under second row seats. See Figure. |
| Drive Motor Generator Power Inverter Module | Right rear of engine compartment. See Figure. |
| Electronic Brake Control Module (EBCM) | On left side of frame assembly. See Figure. |
| Electronic Power Steering Motor Control Module | Right rear of engine compartment. See Figure. |
| Engine Control Module (ECM) (Except Hybrid) (5) | Left front of engine compartment, near fan shroud. See Figure. |
| Engine Control Module (ECM) (Hybrid) | Left front of engine compartment. See Figure. |
| Fuel System Control Module (FSCM) | Under rear of vehicle. See Figure. |
| Glow Plug Control Module (GPCM) (Diesel) | Top left rear of engine. See Figure. |
| Heated Steering Wheel Control Module (1) | In steering wheel. See Figure. |
| Ignition Control Module (ICM) (4.3L) (5) | Rear of engine. See Figure. |
| Inflatable Restraint Front Passenger Presence System (PPS) Module (7) | Under front passenger seat. See Figure. |
| Inflatable Restraint Sensing & Diagnostic Module (SDM) | Under driver's seat. See Figure. |
| Infrared Module (3) | In headliner. See Figure. |
| Intake Air Heater (IAH) (Diesel) | Left front of engine. See Figure. |
| Integrated Trailer Brake Controller (ITBC) Module | On rear of left frame rail. See Figure. |
| Memory Seat Module (10) | Under front of driver's seat. See Figure. |
| Power Take Off (PTO) Module (PTO) (8) | Outside of right front chassis frame. See Figure. |
| Rear Object Sensor Control Module | At rear cargo area, behind trim panel. See Figure. |
| Theft Deterrent Control Module | On right side of steering column. See Figure. |
| Throttle Actuator Control (TAC) Module (Diesel) | Top right front of engine. See Figure. |
| Trailer Brake Controller Module (TBCM) (20/30 Series) (2) | Left rear frame rail. See Figure. |
| Trailer Brake Controller Module (TBCM) (31 Series) (2) | On left frame rail. See Figure. |
| Transfer Case Shift Control Module | Lower left side of dash. See Figure. |
| Transmission Control Module (Allison) | Left front of engine compartment, near fan shroud. See Figure. |
| Transmission Control Module (M30/M70/MW7) (6) | Left front of engine compartment, near fan shroud. See Figure. |
| Vehicle Communication Interface Module (VCIM) (5) | Behind center of dash. See Figure. |