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Pinpoint Test G: DTC U3003:16

WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. 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 results in false resistance readings. Refer to BATTERY, MOUNTING AND CABLES .
  1. G1 RECHECK THE BCM DTCs 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: BCM  Self-Test.
    • Clear the DTCs. Repeat the BCM  self-test.

    Is DTC U3003:16 still present? 

    • Yes  : GO to  G2.
    • No  : The system is operating normally at this time. The DTC may have been set due to a previous low battery voltage condition.
  2. G2 CHECK FOR CHARGING SYSTEM DTCs IN THE PCM 
    • Enter the following diagnostic mode on the scan tool: PCM Self-Test.
    • Carry out the PCM KOEO  self-test.
    • Retrieve the continuous memory DTCs from the PCM.

    Is DTC P0562, P0620, P0622, P0625, P0626 or P065B set in the PCM? 

  3. G3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE 

    Is the battery OK and fully charged? 

  4. G4 CHECK THE BCM VOLTAGE PID 
    • Ignition ON.
    • Measure and record the voltage at the battery.
    • Enter the following diagnostic mode on the scan tool: BCM  DataLogger.
    • Monitor the BCM  voltage PID (V_BATT).

    Is the voltage within 0.2 volt of the recorded battery voltage? 

    • Yes  : GO to  G7.
    • No  : GO to  G5.
  5. G5 CHECK THE BCM VOLTAGE SUPPLY 
    • Ignition OFF.
    • Disconnect: BCM C2280G  .
    • Ignition ON.
    • Measure the voltage between the BCM C2280G-1  , circuit SDC02 (RD), harness side and ground.
      Fig 1: Measuring Voltage Between BCM C2280G-1, Circuit SDC02 (RD), Harness Side And Ground
      G07402631Courtesy of FORD MOTOR CO.

    Is the voltage within 0.2 volt of the recorded battery voltage? 

    • Yes  : GO to  G6.
    • No  : REPAIR circuit SDC02 (RD) for high resistance. CLEAR the DTC. REPEAT the self-test.
  6. G6 CHECK THE BCM GROUND CIRCUIT FOR HIGH RESISTANCE 
    • Ignition OFF.
    • Disconnect: Negative Battery Cable.
    • Disconnect: BCM C2280D  .
    • Measure the resistance between the BCM C2280D-25  , circuit GD133 (BK), harness side and ground.
      Fig 2: Measuring Resistance Between BCM C2280D-25, Circuit GD133 (BK), Harness Side And Ground
      G07402632Courtesy of FORD MOTOR CO.

    Is the resistance less than 5 ohms? 

    • Yes  : GO to  G7.
    • No  : REPAIR circuit GD133 (BK) for high resistance. CLEAR the DTC. REPEAT the self-test.
  7. G7 CHECK FOR CORRECT BCM OPERATION 
    • Disconnect the BCM  connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the BCM  connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.

    Is the concern still present? 

    • Yes  : INSTALL a new BCM  . REFER to Body Control Module (BCM)  . 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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