System Testing
- Check fan motor operation. See MOTOR
under COMPONENT TESTING. If motor is okay, turn ignition on and check for voltage at fan relay Gray (or Light Green/Black) wire. Radiator fan relay may be located in power distribution center (left front inner fender panel) or in front of left strut tower. See Fig 1
. If battery voltage exists, proceed to next step. If battery voltage does not exist, check for open or short in Gray (or Light Green/Black) wire circuit.
- Install jumper wire between Gray (or Light Green/Black) and Light Green (or Dark Blue/Pink) wires on radiator fan relay. If fan operates, proceed to next step. If fan fails to operate, check for open or short in Light Green (or Dark Blue/Pink) wire between radiator fan relay and fan relay motor connector.
- If fan operates, warm engine to normal operating temperature. Check for loose connections on fan motor and at fan motor relay. If all connections are okay, check for fault codes.
- Fault codes can be checked by using diagnostic connector, located in front of left shock tower. Refer to appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE for complete instructions on connecting diagnostic connector and checking for fault codes. After checking fault codes, see COMPONENT TESTING
. Repair as necessary.
Courtesy of DAIMLERCHRYSLER CORP.