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

E1 CHECK THE INSTRUMENT CLUSTER C220 FOR DAMAGE
- Key in OFF position.
- Depower the air bag system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM .
- Disconnect: Instrument Cluster C220.
- Is the instrument cluster C220 OK?
- Yes : GO to E2.
- No : REPAIR the instrument cluster C220 as necessary. CONNECT the instrument cluster C220. REPOWER the air bag system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CARRY OUT the PINPOINT TEST PC: DATA LINK DIAGNOSTICS TEST .
E2 CHECK HIGH SPEED CONTROLLER AREA NETWORK (CAN) CIRCUITS 1908 (WH) AND 1909 (BK) BETWEEN THE DATA LINK CONNECTOR (DLC) C251 AND THE INSTRUMENT CLUSTER C220 FOR AN OPEN
- Measure the resistance between the instrument cluster C220-18, circuit 1908 (WH), harness side and the DLC C251-6, circuit 1908 (WH), harness side; and between the instrument cluster C220-19, circuit 1909 (BK), harness side and the DLC C251-14, circuit 1909 (BK), harness side.
  
  Fig 1: Measuring High Speed Controller Area Network (CAN) Circuits 1908 (WH) And 1909 (BK) Between Data Link Connector (DLC) C251 And Instrument Cluster C220
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
- Yes : GO to E3.
- No : REPAIR the circuit in question. CONNECT the instrument cluster C220. REPOWER the air bag system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the diagnostic trouble codes (DTCs). REPEAT the self-test. CARRY OUT the PINPOINT TEST PC: DATA LINK DIAGNOSTICS TEST .
E3 CHECK MEDIUM SPEED CAN CIRCUITS 2180 (WH/BK) AND 2181 (BK/YE) BETWEEN THE DLC C251 AND THE INSTRUMENT CLUSTER C220 FOR AN OPEN
- Measure the resistance between the instrument cluster C220-20, circuit 2180 (WH/BK), harness side and the DLC C251-3, circuit 2180 (WH/BK), harness side; and between the instrument cluster C220-21, circuit 2181 (BK/YE), harness side and the DLC C251-11, circuit 2181 (BK/YE), harness side.
  
  Fig 2: Measuring Medium Speed Can Circuits 2180 (WH/BK) And 2181 (BK/YE) Between DLC C251 And Instrument Cluster C220
  Courtesy of FORD MOTOR CO.
- Are the resistances less than 5 ohms?
- Yes : GO to E4.
- No : REPAIR the circuit in question. CONNECT the instrument cluster C220. REPOWER the air bag system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the PINPOINT TEST PC: DATA LINK DIAGNOSTICS TEST .
E4 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 . REPOWER the air bag system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the DTCs. REPEAT the self-test. CARRY OUT the PINPOINT TEST PC: 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 PINPOINT TEST PC: DATA LINK DIAGNOSTICS TEST .