Pinpoint Test X: The Instrument Cluster Is Inoperative: Testing
WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
- X1 CHECK THE INSTRUMENT CLUSTER VOLTAGE SUPPLY
- Disconnect: Instrument Cluster C220.
- Key in ON position.
- Measure the voltage between the instrument cluster, harness side and ground as follows:DIAGNOSIS PROCEDURE
Connector-Pin Circuit C220-1 1566 (RD/YE) C220-3 483 (RD) C220-5 295 (LB/PK) - Are the voltages greater than 10 volts?
- Yes : GO to X2.
- No : REPAIR the circuit in question. TEST the system for normal operation.
- X2 CHECK THE INSTRUMENT CLUSTER GROUND CIRCUITS
- Key in OFF position.
- Measure the resistance between the instrument cluster, harness side and ground as follows:DIAGNOSIS PROCEDURE
Connector-Pin Circuit C220-2 1203 (BK/LB) C220-4 1205 (BK) - Are the resistances less than 5 ohms?
- Yes : GO to X3.
- No : REPAIR the circuit in question. TEST the system for normal operation.
- X3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect the instrument cluster connector.
- Check for:
- corrosion
- pushed-out pins
- Connect the instrument cluster connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
- Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
- No : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector.