Pinpoint Test V: The Instrument Cluster Is Inoperative

V1 CHECK THE BATTERY POWER SUPPLY TO THE INSTRUMENT CLUSTER
CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
- Key in OFF position.
- Disconnect: Instrument Cluster C220b.
- Measure voltage between the instrument cluster C220b pin 10, circuit 729 (RD/WH), harness side and ground.
  
  Fig 1: Checking Battery Power Supply To Instrument Cluster
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
1. Yes: GO to V2.
2. No: REPAIR the circuit. TEST the system for normal operation.
V2 CHECK THE RUN POWER SUPPLY TO THE INSTRUMENT CLUSTER
- Key in ON position.
- Measure the voltage between the instrument cluster C220b pin 11, circuit 489 (PK/BK), harness side and ground.
  
  Fig 2: Checking Run Power Supply To Instrument Cluster
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
1. Yes: GO to V3.
2. No: REPAIR the circuit. TEST the system for normal operation.
V3 CHECK RUN/START POWER SUPPLY TO THE INSTRUMENT CLUSTER
- Key in OFF position.
- Disconnect: Instrument Cluster C220b.
- Key in ON position.
- Measure the voltage between the instrument cluster C220b pin 12, circuit 20 (WH/LB), harness side and ground.
  
  Fig 3: Checking Run/Start Power Supply To Instrument Cluster
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
1. Yes: GO to V4.
2. No: REPAIR the circuit. TEST the system for normal operation.
V4 CHECK GROUND CIRCUIT 397 (BK/WH) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between the instrument cluster C220b pin 20, circuit 397 (BK/WH), harness side and ground.
  
  Fig 4: Checking Ground Circuit 397 (BK/WH) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes: GO to V5.
2. No: REPAIR the circuit. TEST the system for normal operation.
V5 CHECK GROUND CIRCUIT 1205 (BK) FOR AN OPEN
- Measure the resistance between the instrument cluster C220b pin 1, circuit 1205 (BK), harness side and ground.
  
  Fig 5: Checking Ground Circuit 1205 (BK) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes: GO to V6.
2. No: REPAIR the circuit. TEST the system for normal operation.
V6 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?
1. Yes: INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
2. 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.