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Pinpoint Test D: DTC U2005 - ACP Communication Error Between Integrated Control Panel And Remote Climate Control Module

  1. D1 CHECK CIRCUIT 833 (TN) FOR SHORT TO GROUND 
    • Key in OFF position.
    • Disconnect: Integrated Control Panel C2009.
    • Disconnect: Remote Climate Control Module C228.
    • Disconnect: Rear Control Unit C388b.
    • Measure the resistance between the integrated control panel (ICP) C2009 pin 14, circuit 833 (TN) and ground.
      Fig 1: Measuring Resistance Between Integrated Control Panel (ICP) C2009 Pin 14, Circuit 833 (TN) And Ground
      G03957766Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    • Yes  : GO to  D2.
    • No  : REPAIR circuit 833 (TN). CLEAR the DTCs. REPEAT the self-test.
  2. D2 CHECK CIRCUIT 833 (TN) FOR SHORT TO VOLTAGE 
    • Key in ON position.
    • Measure the voltage between the ICP C2009 pin 14, circuit 833 (TN) and ground.
      Fig 2: Measuring Voltage Between ICP C2009 Pin 14, Circuit 833 (TN) And Ground
      G03957767Courtesy of FORD MOTOR CO.
    • Is voltage present? 
    • Yes  : REPAIR circuit 833 (TN). CLEAR the DTCs. REPEAT the self-test.
    • No  : GO to  D3.
  3. D3 CHECK CIRCUIT 833 (TN) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between the ICP C2009 pin 14, circuit 833 (TN) and the remote climate control (RCC) module C228 pin 11, circuit 833 (TN).
      Fig 3: Measuring Resistance Between ICP C2009 Pin 14, Circuit 833 (TN) And Remote Climate Control (RCC) Module C228 Pin 11, Circuit 833 (TN)
      G03957768Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to  D4.
    • No  : REPAIR circuit 833 (TN). CLEAR the DTCs. REPEAT the self-test.
  4. D4 CHECK CIRCUIT 832 (LB/PK) FOR SHORT TO GROUND 
    • Measure the resistance between the ICP C2009 pin 13, circuit 832 (LB/PK) and ground.
      Fig 4: Measuring Resistance Between ICP C2009 Pin 13, Circuit 832 (LB/PK) And Ground
      G03957769Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    • Yes  : GO to  D5.
    • No  : REPAIR circuit 832 (LB/PK). CLEAR the DTCs. REPEAT the self-test.
  5. D5 CHECK CIRCUIT 832 (LB/PK) FOR SHORT TO VOLTAGE 
    • Key in ON position.
    • Measure the voltage between the ICP C2009 pin 13, circuit 832 (LB/PK) and ground.
      Fig 5: Measuring Voltage Between ICP C2009 Pin 13, Circuit 832 (LB/PK) And Ground
      G03957770Courtesy of FORD MOTOR CO.
    • Is voltage present? 
    • Yes  : REPAIR circuit 832 (LB/PK). CLEAR the DTCs. REPEAT the self-test.
    • No  : GO to  D6.
  6. D6 CHECK CIRCUIT 832 (LB/PK) FOR AN OPEN 
    • Key in OFF position.
    • Measure the resistance between the ICP C2009 pin 13, circuit 832 (LB/PK) and the RCC module C228 pin 10, circuit 832 (LB/PK).
      Fig 6: Measuring Resistance Between ICP C2009 Pin 13, Circuit 832 (LB/PK) And RCC Module C228 Pin 10, Circuit 832 (LB/PK)
      G03957771Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes  : INSTALL a new integrated control panel (18C858). CLEAR the DTCs. REPEAT the self-test.
    • No  : REPAIR circuit 832 (LB/PK). CLEAR the DTCs. REPEAT the self-test.
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