Radiator Cooling Fan Control Module: Testing and Inspection

FAN CONTROL MODULE INSPECTION [L3]

1. Start and warm up the engine.
2. Monitor the engine coolant temperature with the WDS or the equivalent.








3. Measure the voltage at terminal A of the fan control module connector (2 terminals) from the harness side as shown in the table.
Refrigerant pressure switch (middle) is on.
^ 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 switch (middle)
4. If all the above parts are normal, replace the fan control module.