Control Units
CONTROL UNITS
| Component | Component Location |
|---|---|
| Automatic Transfer Case Control Module | Left side of dash, above headlight switch. |
| Body Control Module | On lower left side of dash, below steering column. |
| Cruise Control Module | In left rear of engine compartment, on firewall. |
| Electronic Brake Control Module (EBCM) | On left side of the inner frame. |
| HVAC Control Module | In center of dash, under radio. |
| Ignition Control Module (4.3L VIN W) | On right side top of engine, at ignition coil. |
| Inflatable Restraint Sensing & Diagnostic Module | Under driver's seat. |
| Power Sun Roof Module | Near rear of sun roof. |
| Powertrain Control Module (PCM) (4.8L VIN V) | On left front of engine compartment. See Figure. |
| Powertrain Control Module (PCM) (5.3L VIN T) | On left front of engine compartment. See Figure. |
| Powertrain Control Module (PCM) (6.0L VIN U) | On left front of engine compartment. See Figure. |
| Remote Control Door Lock Receiver | Behind top center of dash. |
| Suspension Control Module (RTD) | Rear of right rear wheelwell. |
| Throttle Actuator Control (TAC) Module | Near front of engine compartment. |
| Vehicle Communication Unit (VCU) | Behind left side of dash. |
| Vehicle Control Module (VCM) (4.3L VIN W) | On left front of engine compartment. See Figure. |
| Vehicle Interface Unit (VIU) | Behind right side of dash. |