Checking component
- Ignition off.CAUTION:
Avoid touching the pins in the control module and the corresponding connector on the cable harness. There is a risk of static discharge which could damage the control module. Discharge yourself and tools to be used by holding the tool's metal part and touching a body part on the car just before starting to work.
If the engine cooling fan (FC) cannot be activated at any speed:
- Check the fuse, power supply cable and ground lead for the engine cooling fan (FC).
- Check the connector and wiring between the engine control module (ECM) and engine cooling fan (FC) module. Check for damage. Check for an open circuit. Check for a short circuit.
If the engine cooling fan (FC) can be activated at one or more speeds:
- Check the connectors to the engine cooling fan (FC) control module and Engine Control Module (ECM). Check for damage to pins and connections.
- Also check other connectors and connections that connect cables between Engine Control Module (ECM) and the control module for electric cooling fan.
- Check the wiring between the engine control module (ECM) and the engine cooling fan (FC) module. Check for damage.
Remedy as necessary.
Other information:
- See Connecting the breakout box
- For information about signals on 6 cylinder engines:
- For 6 cylinder engines -2001, see Signal specification
- For 6 cylinder engines 2002-, see Signal specification
- For 6 cylinder engines -2004, see Signal specification
- For 6 cylinder engines 2005-, see Signal specification .
- See Engine cooling fan (FC), replacing
- See Checking wiring and terminals
Was a fault detected?
- YES
Refer to Verification
- NO
Refer to Replacing a component