Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1992 GMC Jimmy TyphoonFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS LOCATION
| Component | Location | |
|---|---|---|
| ABS Module | ||
| Rear ABS (RABS) | Near master cylinder. | |
| 4WD ABS | On left front fender. | |
| Audio Alarm Module | On convenience center. | |
| Cruise Control Module | On left side of steering column. | |
| Daytime Running Lights (DRL) Module | Above interior fuse block. | |
| Diode Module | Above fuse block. | |
| Elapsed Timer Module (2.8L) | Under right side of dash, next to ECM. See Figure . | |
| Electronic Control Module (ECM) | ||
| 2.5L (VIN A) | Under right side of dash. See Figure . | |
| 2.8L (VIN R) | Under right side of dash. See Figure . | |
| 4.3L (VIN Z) | Under right side of dash. See Figure . | |
| 4.3L HP (VIN W) | Under right side of dash. See Figure . | |
| Elec. Spark Control (ESC) Module | ||
| 2.8L (VIN R) | On center of firewall. See Figure . | |
| 4.3L (VIN Z) | On center of firewall. See Figure . | |
| 4.3L HP (VIN W) | On center of firewall. See Figure . | |
| Elec. Spark Timing (EST) Module | At distributor. | |
| Elec. Transfer Case Module | Near ECM. | |
| Variable Tuning Controller (4.3L HP) | On top of intake manifold. | |
| Windshield Wiper Module | On center of firewall . | |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.