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.
1989 Geo Prizm Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Circuit Protection Devices
CIRCUIT PROTECTION DEVICES LOCATION
| Component | Location | |
|---|---|---|
| A/C Fuse | On junction block No. 4. See Figure . | |
| Blower Resistor | Behind glove box. | |
| Defogger Circuit Breaker | On junction block 1. See Figure . | |
| ECM/Ignition Fuse | On junction block No. 1. | |
| Fuse/Relay Junction Blocks | ||
| No. 1 | Behind driver's side kick panel. See Figure . | |
| No. 2 | In engine compartment, in front of left wheelwell. | |
| No. 3 | Behind instrument cluster, on column brace. | |
| No. 4 | Behind passenger's side kick panel. See Figure . | |
| No. 5 | In engine compartment, to left of battery. | |
| Fusible Link Box | At positive battery cable. | |
| Heater Circuit Breaker | On junction block No. 4. See Figure . | |
| Power Window Circuit Breaker | On junction block No. 1. See Figure . | |
Factory Service Tools
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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.