Control Units
CONTROL UNITS LOCATION
| Component | Location | |
|---|---|---|
| ABS Module | Under right side of vehicle, on frame rail. | |
| Accelerator Pedal Position Module (6.5L VIN F) | Behind left side of dash. See Figure. | |
| Air Bag Module | Behind left side of dash, near main fuse block. | |
| Audio Alarm Module | Behind left side of dash, below main fuse block. | |
| Brake Booster Delay Module | Behind left side of dash, on parking brake support bracket. | |
| Cruise Control Module (6.5L VIN F) | On top rear of parking brake bracket. See Figure. | |
| Daytime Running Lights (DRL) Module | Behind left side of dash, above steering column. | |
| Diode Array Module | Behind left side of dash, near bulkhead connector. | |
| Electronic Delay Module | Behind left side of dash. | |
| Engine Control Module | ||
| 4.3L (VIN Z) M/T | Behind left side of dash. See Figure. | |
| 5.7L (VIN K) M/T | Behind left side of dash. See Figure. | |
| Engine Coolant Level Indicator Module | Behind left side of dash. | |
| Fuel Module | Behind left side of dash, on instrument wiring harness. See Figure. | |
| Glow Plug Controller (Diesel) | ||
| 6.5L (VIN P) | On left side of engine. | |
| 6.5L (VIN Y) | On top rear of engine. | |
| Governor Control Module (7.4L) | On top left front of engine. | |
| Ignition Control Module | In distributor. | |
| Keyless Entry Module | Behind right side of dash. | |
| Knock Sensor Module | ||
| 4.3L (VIN Z) M/T | On top right of engine, on valve cover. See Figure. | |
| 5.7L (VIN K) M/T | On top right of engine, on valve cover. See Figure. | |
| Power Door Lock Delay Module | Behind left side of dash, to right of steering column. | |
| Powertrain Control Module (PCM) | ||
| 5.7L (VIN K) | Under driver's seat. See Figure. | |
| 7.4L (VIN N) | Under driver's seat. See Figure. | |
| 4.3L (VIN Z) A/T | Under left side of dash. See Figure. | |
| 4.3L (VIN Z) M/T | Under left side of dash. See Figure. | |
| 5.7L (VIN K) A/T | Under left side of dash. See Figure. | |
| 5.7L (VIN K) M/T | Under left side of dash. See Figure. | |
| 7.4L (VIN N) | Under left side of dash. See Figure. | |