Radiator Cooling Fan Control Module: Testing and Inspection

FAN CONTROL MODULE INSPECTION [L5]

1. Connect the M-MDS to the DLC-2.






2. Start and warm up the engine.

3. Monitor the engine coolant temperature with the M-MDS.

4. Measure the voltage at terminal A of the fan control module connector (2 terminals) as shown in the table.






- If not within the specification, inspect the input signals from the following parts.

- Crankshaft Position (CKP) sensor
- Engine Coolant Temperature (ECT) sensor
- Throttle Position (TP) sensor
- Refrigerant pressure sensor
Fan control module No.1, No.2 [A/C OFF]





Fan control module No.1, No.2 [A/C ON (Engine coolant temp. less than 98 °C {208 °F} and idling)]





5. If all the above parts are normal, replace the fan control module.