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Home >> Ford >> 2014 >> F-150 FX2, 2D Pickup >> Repair and Diagnosis >> External Pages >> Different car >> Section 553 (Anti-Lock Brake System (Abs) And Stability Control) >> Diagnosis And Testing >> Anti-Lock Brake System (ABS) and Stability Control >> Pinpoint Tests >> Pinpoint Test D : U0140:00 >> Pinpoint Test D : U0140:00

Pinpoint Test D : U0140:00

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

  1. D1 CHECK THE COMMUNICATION NETWORK

    • Ignition ON.
    • Using a diagnostic scan tool, carry out the Network Test.

    Do the GWM and the BCM pass the Network Test? 

    Yes  GO to  D2
    No  DIAGNOSE the no communication with the GWM or the BCM. REFER to: Communications Network .

  2. D2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)

    • Using a diagnostic scan tool, carry out the ABS module self-test.
    • Clear the Diagnostic Trouble Codes (DTCs).
    • Ignition OFF.
    • Ignition ON.
    • Repeat the ABS module self-test.
    • Retrieve and record all ABS module Diagnostic Trouble Codes (DTCs).

    Is DTC U0140:00 retrieved again? 

    Yes  GO to  D3
    No  The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  3. D3 REVIEW THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE ABS (ANTI-LOCK BRAKE SYSTEM) SELF-TEST

    • Review the recorded Diagnostic Trouble Codes (DTCs) from the ABS module self-test.

    Is DTC U3003:16 or U3003:17 present in the ABS module? 

    Yes  For DTC U3003:16, GO to Pinpoint Test A  For DTC U3003:17, GO to Pinpoint Test E 
    No  GO to  D4

  4. D4 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) IN THE GWM (GATEWAY MODULE A)

    • Using a diagnostic scan tool, carry out the GWM self-test.

    Are any Diagnostic Trouble Codes (DTCs) present in the GWM? 

    Yes  DIAGNOSE the GWM Diagnostic Trouble Codes (DTCs). REFER to: Communications Network .
    No  GO to  D5

  5. D5 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) IN THE BCM (BODY CONTROL MODULE)

    • Using a diagnostic scan tool, carry out the BCM self-test.
    • Retrieve and record all Diagnostic Trouble Codes (DTCs) from the BCM self-test.

    Are any Diagnostic Trouble Codes (DTCs) present in the BCM? 

    Yes  DIAGNOSE the BCM Diagnostic Trouble Codes (DTCs). REFER to: Body Control Module (BCM) .
    No  GO to  D6

  6. D6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:XX SET IN OTHER MODULES

    • Using the diagnostic scan tool, carry out the self-test for all modules.
    • Retrieve and record the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.

    Is DTC U0140:xx set in 1 or more modules other than the ABS module? 

    Yes  GO to  D7
    No  GO to  D8

  7. D7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.
    • Disconnect all BCM electrical connectors.
    • Disconnect all GWM electrical connectors.
    • Disconnect ABS module C135 .
    • Disconnect all in-line electrical connectors between the ABS module and the BCM.
    • Using a good light source, inspect all disconnected electrical connectors for the following:
      • corrosion - install new connector or terminal and clean the module pins
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
      • spread terminals - install new terminals as necessary
    • Connect all in-line electrical connectors between the ABS module and the BCM. Make sure they seat and latch correctly.
    • Connect ABS module C135 . Make sure it seats and latches correctly.
    • Connect all GWM electrical connectors. Make sure they seat and latch correctly.
    • Connect all BCM electrical connectors. Make sure they seat and latch correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Refer to BCM Hardware Testing .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

  8. D8 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

    • Ignition OFF.
    • Disconnect ABS module C135 .
    • Disconnect all in-line electrical connectors between the ABS module and the BCM.
    • Using a good light source, inspect all disconnected electrical connectors for the following:
      • corrosion - install new connector or terminal and clean the module pins
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
      • spread terminals - install new terminals as necessary
    • Connect all in-line electrical connectors between the ABS module and the BCM. Make sure they seat and latch correctly.
    • Connect ABS module C135 . Make sure it seats and latches correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new ABS module. REFER to: Anti-Lock Brake System (ABS) Module .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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