Control Units
CONTROL UNITS
| Component | Component Location |
|---|---|
| Accelerator Pedal Position (APP) Module (6.5L VIN F) | Attached to accelerator pedal. See Figure. |
| Accelerator Pedal Position (APP) Module (6.5L VIN Y) | Attached to accelerator pedal. |
| Cruise Control Module | On radiator support bracket. |
| Daytime Running Lamps (DRL) Module | Behind dash, above steering column. |
| Electronic Brake Control Module (EBCM) | Below radiator, on first crossmember. |
| Electronic Ignition Coil Driver Module (4.3L VIN W) | On right top of engine. See Figure. |
| Electronic Ignition Coil Driver Module (5.7L VIN R) | On right top of engine. See Figure. |
| Electronic Ignition Coil Driver Module (7.4L VIN J) | On bracket at rear of intake plenum. See Figure. |
| Fuel Balance Pump Module (7.4L VIN J) (Dual Tanks Only) | On inside of left frame rail. |
| Glow Plug Controller (6.5L VIN F) | On left rear of engine, near firewall. |
| Glow Plug Controller (6.5L VIN Y) | On left rear of engine, near firewall. |
| P/B Booster Fluid Flow Indicator/ Alarm Delay Module (School Bus) | On brake warning system harness, taped to dash harness at breakout to dash fuse block & headlamps switch. |
| Powertrain Control Module (PCM) (6.5L VIN F) | On left side of driver's island. See Figure. |
| Powertrain Control Module (PCM) (6.5L VIN Y) | On left side of driver's island. |
| Transmission Control Module (TCM) (6.5L VIN F) | On left interior firewall, on top of relay bracket. |
| Transmission Control Module (TCM) (6.5L VIN Y) | On left interior firewall, on top of relay bracket. |
| Vehicle Control Module (VCM) (4.3L VIN W) | On left side of engine compartment. See Figure. |
| Vehicle Control Module (VCM) (5.7L VIN R) | On left side of engine compartment. See Figure. |
| Vehicle Control Module (VCM) (7.4L VIN J) | On center front of engine compartment. See Figure. |
| Windshield Wiper Pulse Control Module | Tie strapped to engine wiring harness, under driver's island support. |