Cooling Fan Control Inspection

1. Verify that A/C switch and fan switch are off.
2. Start the engine and let it idle.

3. Verify that the condenser fan is not operating.
- If condenser fan is operating, inspect the following.
- Condenser fan relay for stuck in closed position.
- Short to power in circuit between condenser fan relay and condenser fan.
- Short to ground in circuit between A/C pressure switch and PCM terminal 1P.
- Short to ground circuit between condenser fan relay and PCM terminal I (short circuit).

4. Turn the A/C switch and fan switch on.
5. Verify that the condenser fan is operating and operating sound of A/C compressor magnetic clutch is heard.
6. Turn the A/C switch and fan switch off.
- If the condenser fan does not operate but operating sound of A/C compressor magnetic clutch is heard, inspect the following.
- Open circuit between ignition switch and condenser fan relay.
- Open circuit between battery and condenser fan relay.
- Open circuit between condenser fan relay and PCM terminal 11.
- Open circuit between condenser fan relay and condenser fan motor or fan motor ground.
- Condenser fan relay stuck open.
- Condenser fan motor.

- If both condenser fan and A/C compressor do not operate, inspect the following.
- TP V PID.
- A/C system.