Radiator Fan Circuit Troubleshooting - Open

Radiator Fan Circuit Troubleshooting - Open

1. Test the radiator fan motor Testing and Inspection.

Is the radiator fan motor OK?

YES -

Go to step 2.

NO -

Replace the radiator fan motor.

2. Disconnect the RFC unit 3P connector.

3. Check for continuity between RFC unit 3P connector terminal No. 2 and body ground.





Is there continuity?

YES -

Replace the RFC unit Service and Repair.

NO -

Check for an open in the wire between RFC unit 3P connector terminal No. 2 and body ground. If the wire is OK, check for a poor ground at G301.