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Home >> Ford >> 2005 >> Escape Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1021 (Instrument Cluster System) >> Diagnostic Tests >> Instrument Cluster >> Pinpoint Tests >> Pinpoint Test Y: The Instrument Cluster Is Inoperative >> Pinpoint Test Y: The Instrument Cluster Is Inoperative

Pinpoint Test Y: The Instrument Cluster Is Inoperative

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. 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.
  1. Y1 CHECK THE INSTRUMENT CLUSTER VOLTAGE SUPPLY 
    • Key in OFF position.
    • Disconnect: Instrument Cluster C220
    • Key in ON position.
      • Fig 1: Checking Circuit For Voltage
      GF0025831Courtesy of FORD MOTOR CO.
    • Measure the voltage between the instrument cluster, harness side and ground as follows:
      Connector-Pin Circuit
      C220-28 1002 (BK/PK)
      C220-29 3049 (BK/LG)
      C220-21 956 (OG/LG)
    • Are the voltages greater than 10 volts? 
    1. YES  : Go to  Y2.
    2. NO  : VERIFY the SJB fuses 7 (10A), 22 (10A) and 28 (10A) are OK. If OK, REPAIR the circuit in question. TEST the system for normal operation.
  2. Y2 CHECK THE INSTRUMENT CLUSTER GROUND CIRCUITS 57 (BK) AND 570 (BK/WH) FOR AN OPEN 
    • Key in OFF position.
      • Fig 2: Checking Circuit For Open
      GF0025832Courtesy of FORD MOTOR CO.
    • Measure the resistance between the instrument cluster, harness side and ground as follows:
      Connector-Pin Circuit
      C220-25 57 (BK)
      C220-31 570 (BK/WH)
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  Y3.
    2. NO  : REPAIR the circuit in question. TEST the system for normal operation.
  3. Y3 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION 
    • Disconnect the instrument cluster connector.
    • Check for:
      • corrosion
      • damaged pins
      • 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? 
    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.
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