Pinpoint Test F: The Instrument Cluster Does Not Respond To The Diagnostic Tool

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.

F1 CHECK THE INSTRUMENT CLUSTER C220 FOR DAMAGE
- Key in OFF position.
- Disconnect: Instrument Cluster C220.
- Inspect the instrument cluster C220 for damage.
- Is the instrument cluster C220 OK?
Yes : GO to F2.

No : REPAIR the instrument cluster C220 as necessary. CONNECT the instrument cluster C220. CARRY OUT the data link diagnostics test.
F2 CHECK THE HIGH SPEED CAN CIRCUITS BETWEEN THE DLC AND THE INSTRUMENT CLUSTER FOR AN OPEN
- Measure the resistance between the instrument cluster C220-15, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side.
  
  Fig 1: Checking High Speed CAN Circuits Between DLC And Instrument Cluster For Open (1 Of 2)
  Courtesy of FORD MOTOR CO.
- Measure the resistance between the instrument cluster C220-14, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side.
  
  Fig 2: Checking High Speed CAN Circuits Between DLC And Instrument Cluster For Open (2 Of 2)
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
Yes : GO to F3.

No : REPAIR the circuit. CONNECT the instrument cluster C220. CARRY OUT the data link diagnostics test.
F3 CHECK THE MEDIUM SPEED CAN CIRCUITS BETWEEN THE DLC AND THE INSTRUMENT CLUSTER FOR AN OPEN
- Measure the resistance between the instrument cluster C220-2, circuit VDB06 (GY/OG), harness side and the DLC C251-3, circuit VDB06 (GY/OG), harness side.
  
  Fig 3: Checking Medium Speed CAN Circuits Between DLC And Instrument Cluster For Open (1 Of 2)
  Courtesy of FORD MOTOR CO.
- Measure the resistance between the instrument cluster C220-1, circuit VDB07 (VT/OG), harness side and the DLC C251-11, circuit VDB07 (VT/OG), harness side.
  
  Fig 4: Checking Medium Speed CAN Circuits Between DLC And Instrument Cluster For Open (2 Of 2)
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
Yes : GO to F4.

No : REPAIR the circuit. CONNECT the instrument cluster C220. CARRY OUT the data link diagnostics test.
F4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all the instrument cluster connectors.
- Check for:
  - Corrosion
  - Pushed-out pins
- Connect all the instrument cluster connectors and make sure they seat 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 . CLEAR the diagnostic trouble codes (DTCs). REPEAT the self-test. CARRY OUT the data link diagnostics test.

No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test. CARRY OUT the data link diagnostics test.