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.
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HOMESERVICE MANUALSSATURN1997SC1 AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSCIRCUIT DIAGNOSIS TESTSCOOLING FAN INOPERATIVE
1997 Saturn SC1 Automatic
Cooling Fan Inoperative
1997 Saturn SC1 AutomaticSECTION Cooling Fan Inoperative
- Ensure COOL FAN fuse (30-amp) in underhood junction block is okay. If fuse is okay, disconnect cooling fan motor connector. Connect voltmeter between ground and cooling fan motor connector terminal "B" (Light Blue wire). Disconnect A/C compressor clutch connector. Start engine and turn A/C system on. Check voltage between ground and cooling fan motor connector terminal "B". If voltage is not present, go to next step. If voltage is present, go to step 3).
- Turn engine off. Turn ignition switch to OFF position. Do not disconnect voltmeter. Disconnect PCM Light Blue 32-pin connector. Connect a jumper wire between ground and PCM connector terminal "J1C01" (Dark Green wire). If voltage is present at cooling fan connector terminal "B" (Light Blue wire), replace PCM. If voltage is not present at cooling fan connector terminal "B" (Light Blue wire), replace cooling fan relay. Ensure proper cooling fan operation. Reconnect A/C compressor clutch connector.
- Turn engine off. Turn ignition switch to OFF position. Check for open in Black wire between ground and cooling fan motor connector terminal "A". If Black wire is okay, replace cooling fan motor. Ensure proper cooling fan operation. Reconnect A/C compressor clutch connector.
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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.