Control Units
CONTROL UNITS LOCATION
| Component | Location | |
|---|---|---|
| ABS Module | ||
| RWAL | On side of master cylinder. | |
| 4WAL | On left inner fender panel, near brake master cylinder. | |
| Audio Alarm Module | On convenience center. | |
| Cruise Control Module | ||
| S10 Pickup & Sonoma | On left side of firewall. | |
| Bravada, S/T Blazer & S/T Jimmy | Behind left side of instrument panel. | |
| Daytime Running Lights (DRL) Module | Above fuse block. | |
| Diode Module (4.3L - VIN Z) | On wiring harness, above fuse block. | |
| Direct Ignition Control (IC) Module (2.2L) | On right side of engine, behind alternator. | |
| Elec. Shift Transfer Case Module | Under center of dash, on transmission tunnel. | |
| Engine Control Module (ECM) | Behind right side of dash. See Figure. | |
| Keyless Entry Module | Under center console. | |
| Powertrain Control Module (PCM) | ||
| VIN 4 | Behind right side of dash. See Figure. | |
| VIN W - A/T | Behind right side of dash. See Figure & 4. | |
| VIN Z - A/T (California) | Behind right side of dash. See Figure. | |
| VIN W - A/T (Utility Model) | Behind right side of dash. See Figure. | |
| VIN Z - M/T (Utility Model) | Behind right side of dash. See Figure. | |
| Vehicle Control Module (VCM) (4.3L VIN Z - M/T) | On right front of engine compartment, near washer reservoir. See Figure. | |
| Windshield Wiper Module | On center of firewall. | |