Inspection Procedure 6

INSPECTION PROCEDURE 6: Condenser Fan does not Operate

Radiator Fan and Condenser Fan Drive Circuit
Inspection Procedure 3

CIRCUIT OPERATION
- The fan control module is powered from fusible link number 2.
- The PCM judges the required revolution speed of radiator fan motor and condenser fan motor using the input signals transmitted from A/C switch, automatic compressor controller, vehicle speed sensor and engine coolant temperature sensor. The PCM activates the fan controller to drive the radiator fan motor and condenser fan motor.

TECHNICAL DESCRIPTION
The cause could be a malfunction of the condenser fan motor or of the fan controller.

TROUBLESHOOTING HINTS
- Malfunction of condenser fan motor
- Malfunction of fan controller

DIAGNOSIS

STEP 1. Check the condenser fan motor.
Q. Is the condenser fan in good condition?
YES: Go to Step 2.
NO: Replace the condenser fan motor, go to Step 3.

STEP 2. Check the fan controller.
Q: Is the fan controller in good condition?
YES: Go to Step 3.
NO: Replace the fan controller, then go to Step 3.

STEP 3. Check the symptoms.
Q: Does the condenser fan operate correctly?
YES: This diagnosis is complete.
NO: Return to Step 1.