Radiator Fan Switch Circuit Troubleshooting

Radiator Fan Switch A Circuit Troubleshooting
1. Disconnect the radiator fan switch A 2P connector.
2. Turn the ignition switch ON (II).





3. Measure the voltage between the radiator fan switch A 2P connector terminal No. 2 and body around.
Is there battery voltage?
YES - Go to step 4.
NO - Repair open in the wire between the radiator fan switch A connector and under-hood fuse/relay box.





4. Turn the ignition switch OFF, and check for continuity between the radiator fan switch A 2P connector terminal No. 1 and body ground.
Is there continuity?
YES - Replace radiator fan switch A.
NO - Check for open in the wire between the radiator fan switch A connector and body ground. If the wire is OK, check for poor ground at G101.