Inspection procedure 6

INSPECTION PROCEDURE 6: Condenser Fan does not Operate [3.8L Engine]

Radiator Fan and Condenser Fan Drive Circuit

Refer to Inspection procedure 3.

CIRCUIT OPERATION

- The fan control module is powered from fusible link number 2.
- The ECM [M/T] or PCM [A/T] 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 ECM [M/T] or PCM [A/T] activates the fan control module to drive the radiator fan motor and condenser fan motor.

TECHNICAL DESCRIPTION

The cause could be a malfunction of the condenser fan motor or fan control module.

TROUBLESHOOTING HINTS

- Malfunction of condenser fan motor
- Malfunction of fan control module

DIAGNOSIS

STEP 1. Check the condenser fan motor.

Testing and Inspection.

Q. Is the condenser fan motor in good condition?

YES Go to Step 2.
NO Replace the condenser fan motor, then go to Step 3.
STEP 2. Check the fan control module.

Refer to Cooling Fan Control Module Check.

Q. Is the fan control module in good condition?

YES Go to Step 3.
NO Replace the radiator fan motor, then go to Step 3.
STEP 3. Check the symptoms.

Q. Does the condenser fan operate correctly?

YES The procedure is complete.
NO Return to Step 1.