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.
1995 Geo Prizm Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Control Units
CONTROL UNITS
| Component | Component Location |
|---|---|
| ABS Hydraulic Modulator Assembly | Right front of engine compartment. |
| Audio Alarm Module | On back of junction block No. 1. |
| Cruise Control Module | Behind center console, below radio. |
| Daytime Running Lamps (DRL) Control Module | Behind left side of dash. |
| Electronic Brake Control Module (EBCM) | On right front floorboard, under carpet. |
| Engine Control Module (ECM) | Behind front of center console. See Figure . |
| Lamp Driver Module (ABS) | Behind center of dash, taped to harness. |
| Power Door Lock Control Module | Behind center of dash, attached to support brace. |
| Powertrain Control Module (PCM) | Behind front of center console. See Figure . |
| Shift Lock Control Module (A/T) | Under center console, at base of parking brake lever. |
| Sunroof Control Module | On front center of roof headliner. |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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