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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1375 (Information Center - Instrument Cluster (Ic), Message Center, & Warning Chimes) >> Diagnostic Tests >> Instrument Cluster (IC), Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test A: The Instrument Cluster (IC) Is Inoperative >> Pinpoint Test A: The Instrument Cluster (Ic) Is Inoperative

Pinpoint Test A: The Instrument Cluster (Ic) Is Inoperative

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. A1 CHECK THE INSTRUMENT CLUSTER (IC) VOLTAGE SUPPLY 
    • Key in OFF position.
    • Disconnect: Instrument Cluster (IC) C220
    • Key in ON position.
      • Fig 1: Checking Instrument Cluster (IC) Voltage Supply
      GF0041618Courtesy of FORD MOTOR CO.
    • Measure the voltage between the instrument cluster (IC), harness side and ground as follows:
      Instrument Cluster (IC) Connector-Pin Circuit
      C220-20 CBP20 (YE/VT)
      C220-6 CBP23 (BN/YE)
      C220-19 SBP07 (WH/RD)
    • Are the voltages greater than 10 volts? 
    1. YES  : Go to  A2.
    2. NO  : VERIFY the SJB fuses 13 (7.5A), 23 (7.5A), and 27 (7.5A) are OK. If OK, REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.
  2. A2 CHECK THE INSTRUMENT CLUSTER (IC) GROUND CIRCUITS 
    • Key in OFF position.
      • Fig 2: Checking Instrument Cluster (IC) Ground Circuits
      GF0041619Courtesy of FORD MOTOR CO.
    • Measure the resistance between the instrument cluster (IC), harness side and ground as follows:
      Instrument Cluster (IC) Connector-Pin Circuit
      C220-9 GD116 (BK/VT)
      C220-10 GD116 (BK/VT)
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  A3.
    2. NO  : REPAIR the circuit in question. TEST the system for normal operation.
  3. A3 CHECK FOR CORRECT INSTRUMENT CLUSTER (IC) OPERATION 
    • Disconnect the instrument cluster (IC) connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the instrument cluster (IC) connector and make sure it seats correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. YES  : INSTALL a new instrument cluster (IC). REFER to Instrument Cluster (IC) . 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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