Radiator Fan Switch Circuit Troubleshooting (Short)

NOTE: Before beginning this troubleshooting procedure, refer to the symptom troubleshooting index.

1.Remove the radiator fan relay from the under-hood fuse/relay box, and test it.

Is the relay OK?


YES - Go to 2.


NO - Replace the radiator fan relay.n


2.Remove the radiator fan switch, and test it.

Is the radiator fan switch OK?


YES - Go to 3.


NO - Replace the  radiator fan switch.n


3.Disconnect the under-hood fuse relay box 20P connector.

4.Check for continuity between radiator fan switch 2P connector terminal No. 2 and body ground.

Is there continuity?


YES - Repair short in the wire between radiator fan switch 2P connector terminal No. 2 and under-hood fuse/relay box.n


NO - Replace the under-hood fuse/relay box.n