Pinpoint Test A: The Instrument Cluster (Ic) Is Inoperative
WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
- A1 RETRIEVE THE RECORDED DTCs FROM THE CONTINUOUS INSTRUMENT CLUSTER (IC) SELF-TEST
- Check for recorded instrument cluster (IC) DTCs from the continuous self-test.
- Is DTC U2472 recorded?
- YES : Go to Pinpoint Test AC .
- NO : Go to A2.
- A2 CHECK THE INSTRUMENT CLUSTER (IC) B+ VOLTAGE SUPPLY
- Key in OFF position.
- Disconnect: Instrument Cluster (IC) C220
- Measure the voltage between the instrument cluster (IC) C220-1, circuit SBP26 (YE/RD), harness side and ground.
- Are the voltages greater than 10 volts?
- YES : Go to A3.
- NO : VERIFY SJB fuse 26 (10A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
- A3 CHECK THE INSTRUMENT CLUSTER (IC) RUN/START VOLTAGE SUPPLY
- Key in ON position.
- Measure the voltage between the instrument cluster (IC) C220-14, circuit CBP29 (WH/VT), harness side and ground.
- Are the voltages greater than 10 volts?
- YES : Go to A4.
- NO : VERIFY SJB fuse 29 (5A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation.
- A4 CHECK THE INSTRUMENT GROUND CIRCUIT GD111 (BK/BU) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between the instrument cluster (IC) C220-6, circuit GD111 (BK/BU), harness side and ground; and between the instrument cluster (IC) C220-20, circuit GD111 (BK/BU), harness side and ground.
- Is the resistance less than 5 ohms?
- YES : Go to A5.
- NO : REPAIR the circuit. TEST the system for normal operation.
- A5 CHECK FOR CORRECT INSTRUMENT CLUSTER (IC) OPERATION
- Disconnect the instrument cluster (IC) connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the instrument cluster (IC) connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- YES : INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . TEST the system for normal operation.
- NO : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.