A/C Condenser Fan Circuit Troubleshooting

A/C Condenser Fan Circuit Troubleshooting

NOTE:

- Do not use this troubleshooting procedure if the radiator fan and/or the A/C compressor is inoperative. Refer to the symptom troubleshooting index.
- Before doing symptom troubleshooting, check for powertrain DTCs Initial Inspection and Diagnostic Overview.

1. Check the No. 5 (20 A) and No. 21 (7.5 A) fuses in the under-hood fuse/relay box.

Are the fuses OK?

YES -

Go to step 2.

NO -

Replace the fuse(s), and recheck. If the fuse(s) blows again, check for a short in the No. 5 (20 A) fuse and/or the No. 21 (7.5 A) fuse circuits.�

2. Remove the relay circuit board Under-Hood Fuse/Relay Box Removal And Installation from the under-hood fuse/relay box, and test the A/C condenser fan relay.

Is the relay OK?

YES -

Go to step 3.

NO -

Replace the relay circuit board.�

3. Disconnect the A/C condenser fan motor 2P connector.

4. Disconnect under-hood fuse/relay box connector C (14P).

5. Check for continuity between under-hood fuse/relay box connector C (5P) terminal No. 3 and A/C condenser fan motor 2P connector terminal No. 2.





Is there continuity?

YES -

Go to step 6.

NO -

Repair an open in the wire between the under-hood fuse/relay box and the A/C condenser fan motor.�

6. Check for continuity between A/C condenser fan motor 2P connector terminal No. 1 and body ground.





Is there continuity?

YES -

Replace the A/C condenser fan motor Radiator And A/C Condenser Fan, Motor, And Shroud Removal And Installation.�

NO -

Check for an open in the wire between the A/C condenser fan motor and body ground. If the wire is OK, check for poor ground at G302.�