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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Anti-Lock Brake System (Abs) And Stability Control >> Diagnosis And Testing >> Anti-Lock Brake System (ABS) and Stability Control >> Pinpoint Tests >> Pinpoint Test T : U0138:00 >> Pinpoint Test T : U0138:00

Pinpoint Test T : U0138:00

  1. T1 CHECK THE COMMUNICATION NETWORK

    • Ignition ON.
    • Using a diagnostic scan tool, carry out the network test.

    Does the ATCM pass the network test? 

    Yes  GO to  T2.
    No  Refer to article 'Module Communications Network', Go to Pinpoint Test AA .

  2. T2 CHECK THE ABS MODULE CMDTCs

    • Ignition ON.
    • Using a diagnostic scan tool, carry out the ABS module self-test.
    • Clear the DTCs.
    • Ignition OFF.
    • Ignition ON.
    • Repeat the ABS module self-test.
    • Record the ABS module DTCs.

    Is DTC U0138:00 retrieved again? 

    Yes  GO to  T3.
    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. T3 REVIEW THE RECORDED DTCs FROM THE ABS MODULE SELF-TEST

    • Check the recorded DTCs from the ABS module self-test.

    Is DTC U3003:16 or U3003:17 present? 

    Yes  For DTC U3003:16, GO to Pinpoint Test A . For DTC U3003:17, GO to Pinpoint Test P .
    No  GO to  T4.

  4. T4 CHECK FOR DTCs IN THE ATCM

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

    Is DTC B11D9:16 or B11D9:17 present? 

    Yes  Refer to article 'Four Wheel Drive (4WD) Systems', Go to Pinpoint Test F .
    No  GO to  T5.

  5. T5 CHECK FOR DTC U0138:00 SET IN OTHER MODULES

    • Ignition ON.
    • Using a diagnostic scan tool, carry out the self-test for all modules.
    • Retrieve the CMDTCs from all modules.

    Is DTC U0138:00 set in any other modules? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern, INSTALL a new ATCM. REFER to Four Wheel Drive (4WD) Systems .
    No  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no TSBs address this concern and the vehicle is not equipped with adaptive cruise control, INSTALL a new ABS module. REFER to Anti-Lock Brake System (ABS) Module . If no TSBs address this concern and the vehicle is equipped with adaptive cruise control, INSTALL a new ABS module and HCU. REFER to Hydraulic Control Unit (HCU) .
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