Pinpoint Test Y: The Instrument Cluster Is Inoperative

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

Y1 CHECK CIRCUIT 29-GG14 (OG) FOR VOLTAGE
- Key in OFF position.
- Disconnect: Instrument Cluster C2220.
- Measure the voltage between the instrument cluster C2220-28, circuit 29-GG14 (OG), harness side and ground.
  
  Fig 1: Checking Circuit 29-GG14 (OG) For Voltage
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes : GO to Y2.

No : VERIFY the central junction box (CJB) fuse 36 (7.5A) is OK. If OK, REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Y2 CHECK CIRCUIT 75-GG14 (YE/BU) FOR VOLTAGE
- Key in ACCESSORY position.
- Measure the voltage between the instrument cluster C2220-6, circuit 75-GG14 (YE/BU), harness side and ground.
  
  Fig 2: Checking Circuit 75-GG14 (YE/BU) For Voltage
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes : GO to Y3.

No : VERIFY the CJB fuse 41 (7.5A) is OK. If OK, REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Y3 CHECK CIRCUIT 15-GG14 (GN/RD) FOR VOLTAGE
- Key in ON position.
- Measure the voltage between the instrument cluster C2220-12, circuit 15-GG14 (GN/RD), harness side and ground.
  
  Fig 3: Checking Circuit 15-GG14 (GN/RD) For Voltage
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
Yes : GO to Y4.

No : VERIFY the CJB fuse 61 (7.5A) is OK. If OK, REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Y4 CHECK GROUND CIRCUIT 91-GG14 (BK/OG) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between the instrument cluster C2220-30, circuit 91-GG14 (BK/OG), harness side and ground.
  
  Fig 4: Checking Ground Circuit 91-GG14 (BK/OG) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes : GO to Y5.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Y5 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 determine if the concern is still present.
- Is the concern still present?
Yes : INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER in this article. 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. CLEAR the DTCs. REPEAT the self-test.