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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 714 (Four-Wheel Drive Systems) >> Diagnosis And Testing >> Four-Wheel Drive Systems - (Vehicles With: 2-Speed Torque On Demand Transfer Case) >> Pinpoint Tests >> Pinpoint Test O : U0140 >> Pinpoint Test O : U0140

Pinpoint Test O : U0140

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. O1 VERIFY THE SCAN TOOL COMMUNICATES WITH THE BCM (BODY CONTROL MODULE)

    • Ignition ON.
    • Connect a diagnostic scan tool.
    • Check that a vehicle session can be established using a diagnostic scan tool.

    Can a vehicle session be established? 

    Yes  GO to  O2
    No  REFER to: COMMUNICATIONS NETWORK .

  2. O2 CHECK THE TCCM (TRANSFER CASE CONTROL MODULE) CMDTC (CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODE) S

    • Using a diagnostic scan tool, perform the TCCM self-test.
    • Clear the DTCs.
    • Wait 100 seconds.
    • Repeat the TCCM self-test.

    Is DTC U0140 retrieved again? 

    Yes  GO to  O3
    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. O3 RETRIEVE THE RECORDED DTC (DIAGNOSTIC TROUBLE CODE) S FROM THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE SELF-TEST

    • Using a diagnostic scan tool, perform the ABS module self-test.

    Are any DTCs recorded? 

    Yes  REFER to: Anti-Lock Brake System (ABS) and Stability Control .
    No  GO to  O4

  4. O4 RETRIEVE THE RECORDED DTC (DIAGNOSTIC TROUBLE CODE) S FROM THE TCCM (TRANSFER CASE CONTROL MODULE) SELF-TEST

    • Using a diagnostic scan tool, perform the TCCM self-test.

    Is DTC P0562:00 or P0563:00 recorded? 

    Yes  GO to Pinpoint Test B 
    No  GO to  O5

  5. O5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140 SET IN OTHER MODULES

    • Using a diagnostic scan tool, clear all DTCs.
    • Ignition OFF.
    • Ignition ON.
    • Wait 10 seconds.
    • Using a diagnostic scan tool, perform the continuous memory self-test.
    • Retrieve the CMDTCs from all modules.

    Is DTC U0140 set in other modules on the network? 

    Yes  GO to  O6
    No  GO to  O7

  6. O6 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) MODULE OPERATION

    • Ignition OFF.
    • Disconnect and inspect the BCM module connector.
    • Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the BCM module connector. Make sure it seat and latches correctly.
    • Operate the system and verify the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no 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.

  7. O7 CHECK FOR CORRECT TCCM (TRANSFER CASE CONTROL MODULE) OPERATION

    • Ignition OFF.
    • Disconnect and inspect the TCCM connector.
    • Repair:
      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary
    • Reconnect the TCCM connector. Make sure it seats and latches correctly.
    • Operate the system and verify the concern is still present

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new TCCM. Refer to: Transfer Case Control Module (TCCM) .
    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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