A/C Condenser Fan Circuit Troubleshooting

A/C Condenser Fan Circuit Troubleshooting

NOTE:

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

1. Check the No. 47 (30 A) and the No. 10 (7.5 A) fuses in the under-dash fuse/relay box.

Are the fuses OK?

YES -

Go to step 2.

NO -

Replace the blown fuses, and recheck. If either fuse blows again, check for a short in the No. 47 (30 A) or No. 10 (7.5 A) fuse circuits.�

2. Remove the A/C condenser fan relay from the auxiliary under-hood relay box, and test it Testing and Inspection.

Is the relay OK?

YES -

Go to step 3.

NO -

Replace the A/C condenser fan relay.�

3. Measure the voltage between A/C condenser fan relay 4P socket terminal No. 2 and body ground.





Is there battery voltage?

YES -

Go to step 4.

NO -

Repair an open in the wire between the No. 47 (30 A) fuse in the under-dash fuse/relay box and the A/C condenser fan relay.�

4. Connect the A/C condenser fan relay 4P socket terminals No. 1 and No. 2 with a jumper wire.





Does the A/C condenser fan run?

YES -

Go to step 5.

NO -

Go to step 8.

5. Disconnect the jumper wire.

6. Turn the ignition switch to ON (II).

7. Measure the voltage between A/C condenser fan relay 4P socket terminal No. 4 and body ground.





Is there battery voltage?

YES -

Repair an open in the wire between the A/C condenser fan relay and the ECM/PCM.�

NO -

Repair an open in the wire between the No. 10 (7.5 A) fuse in the under-dash fuse/relay box and the A/C condenser fan relay.�

8. Disconnect the jumper wire.

9. Disconnect the A/C condenser fan 2P connector.

10. Check for continuity between A/C condenser fan relay 4P socket terminal No. 1 and A/C condenser fan motor 2P connector terminal No. 2.





Is there continuity?

YES -

Go to step 11.

NO -

Repair an open in the wire between the A/C condenser fan relay and the A/C condenser fan motor.�

11. Check for continuity between A/C condenser fan 2P motor 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 G301 [1][2]Harness.�