Operation CHARM: Car repair manuals for everyone.

A - Radiator/Condenser Fans Circuit

Radiator and Condenser Fans Circuit Troubleshooting A
1. Check the No. 57 (30A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES - Go to step 2.
NO - Check for a short in the wire between the radiator fan relay, radiator fan motor and fan control relay, and condenser fan motor or a faulty fan motor.
2. Remove the radiator fan relay from the under-hood fuse/relay box and test it.
Is the relay OK ?
YES - Go to step 3.
NO - Replace radiator fan relay.





3. Measure the voltage between radiator fan relay 4P socket terminal No. 1 and body ground.
Is there battery voltage?
YES - Go to step 4.
NO - Replace the under-hood fuse/relay box.





4. Connect a jumper wire between radiator fan relay 4P socket terminals No. 1 and No. 2.
Does the radiator fan run?
YES - Go to step 5.
NO - Go to step 7.
5. Disconnect the jumper wire, and turn the ignition switch ON (II).





6. Measure the voltage between radiator fan relay 4P socket terminal No. 4 and body ground.
Is there the battery voltage?
YES - Repair an open in the wire between the radiator fan relay and the A/C pressure switch.
NO - Replace the under-hood fuse/relay box.
7. Disconnect the radiator fan motor 2P connector.





8. Measure the voltage between fan motor 2P connector terminal No. 2 and body ground.
Is there battery voltage?
YES - Go to step 9.
NO - Repair an open in the wire between radiator fan relay 4P socket terminal No. 2 and radiator 2P connector terminal No. 2.
9. Disconnect the jumper wire.
10. Test the radiator fan motor.
Is the fan motor OK?
YES - Repair an open in the wire between radiator fan motor 2P connector terminal No. 1 and body ground G201.
NO - Replace the radiator fan motor.