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.
Radiator Fan Does Not Run At All - Condenser Fan Okay
1997 Acura 2.2CL StandardSECTION Radiator Fan Does Not Run At All - Condenser Fan Okay
- Check fuse No. 21 (20-amp) in underhood fuse/relay block. If fuse is blown, replace fuse. If necessary, repair short to ground. If fuse is okay, remove radiator fan relay. Test radiator fan relay. See RELAYS under TESTING. If radiator fan relay is faulty, replace radiator fan relay.
- If radiator fan relay is okay, check for battery voltage between ground and terminal No. 3 of radiator fan relay 4-pin socket. See Fig 1 . If battery voltage does not exist, replace underhood fuse/relay block.
- If battery voltage exists, connect jumper wire between terminals No. 1 (Blue/Black wire) and No. 3 of radiator fan relay socket. See Fig 1 . If radiator fan runs, go to step 5). If radiator fan does not run, disconnect radiator fan 2-pin connector and jumper wire. Check for continuity in Blue/Black wire between radiator fan relay and radiator fan.
- If continuity does not exist, repair open Blue/Black wire between radiator fan relay and radiator fan. If continuity does exist, check for continuity between ground and Black wire terminal of radiator fan 2-pin connector. If continuity does exist, replace radiator fan motor. If continuity does not exist, repair open Black wire between radiator fan and ground. If wire is okay, check for poor ground connection.
- Disconnect jumper wire. Turn ignition on. Check for battery voltage between ground and Yellow wire terminal of radiator fan relay socket. If battery voltage does exist, repair open in Green wire between radiator fan relay and A/C diode. If battery voltage does not exist, measure voltage between ground and terminal No. 1 (Yellow wire) of fan control module 8-pin connector with connector connected.
- If battery voltage does not exist, test radiator fan control module. See RADIATOR FAN CONTROL MODULE INPUT TESTS under TESTING. If battery voltage does exist, repair open in Yellow wire between radiator fan relay and radiator fan control module.
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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.