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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2441 (Information Center - Instrumentation, Message Center And Warning Chimes) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test A: The IC Is Inoperative >> Pinpoint Test A: The Ic Is Inoperative

Pinpoint Test A: The Ic Is Inoperative

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. 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.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .
  1. A1 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST 
    • Check for recorded IC  DTCs from the self-test.
    • Is DTC U2472 recorded? 
  2. A2 CHECK THE IC HOT AT ALL TIMES VOLTAGE SUPPLY 
    • Ignition OFF.
    • Disconnect: IC  C220.
    • For early build vehicles, measure the voltage between the IC  C220-19, circuit SBP26 (YE/RD), harness side and ground.
      Fig 1: Measuring Voltage Between IC C220-19, Circuit SBP26 (YE/RD) Harness Side And Ground
      G06390645Courtesy of FORD MOTOR CO.
    • For late build vehicles, measure the voltage between the IC  C220-21, circuit SBP26 (YE/RD), harness side and ground.
      Fig 2: Measuring Voltage Between IC C220-21, Circuit SBP26 (YE/RD) Harness Side And Ground
      G06257862Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to A3  .
    • No:  VERIFY SJB  fuse 26 (10A) is OK. If OK, REPAIR circuit SBP26 (YE/RD) for an open. If not OK, REFER to the appropriate SYSTEM WIRING DIAGRAMS article to identify the possible causes of the circuit short. TEST the system for normal operation.
  3. A3 CHECK THE IC GROUND CIRCUITS FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: Negative Battery Cable.
    • For early build vehicles, measure the resistance between the IC  C220-9, circuit GD112 (BK/GN), harness side and ground; and between the IC  C220-10, circuit GD114 (BK/BU), harness side and ground.
      Fig 3: Checking IC Ground Circuits For An Open (1 Of 2)
      G06390647Courtesy of FORD MOTOR CO.
    • For late build vehicles, measure the resistance between the IC  C220-5, circuit GD112 (BK/GN), harness side and ground.
      Fig 4: Checking IC Ground Circuits For An Open (2 Of 2)
      G06262893Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes:  GO to A4  .
    • No:  REPAIR circuit GD112 (BK/GN) and GD114 (BK/BU) for an open. TEST the system for normal operation.
  4. A4 CHECK FOR CORRECT IC OPERATION 
    • Disconnect the IC  connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the IC  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 IC  . REFER to INSTRUMENT CLUSTER (IC) . 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.
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