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Pinpoint Test Av: DTC U0151:00

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  1. AV1 CHECK THE COMMUNICATION NETWORK 
    • Ignition ON.
    • Using a diagnostic scan tool, carry out the Network Test.
    • Does the RCM pass the Network Test? 
      1. Yes  : GO to AV2.
      2. No  : DIAGNOSE the no communication with the RCM. REFER to MODULE COMMUNICATIONS NETWORK .
  2. AV2 RECHECK THE ABS MODULE DTCs 
    • Using a diagnostic scan tool, carry out the ABS module self-test.
    • Clear the ABS module DTCs.
    • Ignition OFF.
    • Ignition ON.
    • Using a diagnostic scan tool, carry out the ABS module self-test.
    • Enter the following diagnostic mode on the scan tool: Self Test - ABS Module.
    • Record the ABS module DTCs.
    • Is DTC U0151:00 retrieved again? 
      1. Yes  : GO to AV3.
      2. No  : If no DTCs are retrieved again, 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. AV3 REVIEW THE RECORDED ABS MODULE DTCs  
    • Review the previously recorded ABS module DTCs.
    • Was DTC B11E8:16 or B11E8:17 recorded?  
      1. Yes  : For ABS module DTC B11E8:16, GO to Pinpoint Test AJPinpoint Test AJ .

        For ABS module DTC B11E8:17, GO to Pinpoint Test AK .

      2. No  : GO to AV4.
  4. AV4 CHECK THE RCM FOR DTCS 
  5. AV5 CHECK FOR DTC U0151:XX SET IN OTHER MODULES 
    • Using a diagnostic scan tool, carry out the self-test for all modules.
    • Retrieve and record all CMDTCs.
    • Is DTC U0151:xx set in 1 or more modules in addition to the ABS module?  
      1. 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, DIAGNOSE the RCM concern. REFER to Supplemental Restrarint System - Diagnosis And Testing . CLEAR the DTCs. REPEAT the ABS module self-test.
      2. No  : GO to AV6.
  6. AV6 CHECK THE DEDICATED CAN CIRCUITS FOR A SHORT TO VOLTAGE 
    WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
    • Ignition OFF.
    • Wait one minute, then disconnect RCM C310A and C310B.
    • Disconnect ABS module C135.
    • Ignition ON.
    • Measure the voltage between the ABS module C135, harness side and ground as follows:
      ABS Module Circuit
      C135-8 VCA23 (BU/WH)
      C135-9 VCA24 (GN/OG)
      Fig 1: Measuring Voltage Between ABS Module C135, Harness Side And Ground
      G08596607Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
      1. Yes  : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
      2. No  : GO to AV7.
  7. AV7 CHECK THE DEDICATED CAN CIRCUITS FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Measure the resistance between the ABS module C135, harness side and ground as follows:
      ABS Module Circuit
      C135-8 VCA23 (BU/WH)
      C135-9 VCA24 (GN/OG)
      Fig 2: Measuring Resistance Between ABS Module C135, Harness Side And Ground
      G08596608Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    1. Yes  : GO to AV8.
    2. No  : REPAIR the affected circuit(s). TEST the system for normal operation.
  8. AV8 CHECK THE DEDICATED CAN CIRCUITS FOR A SHORT TOGETHER 
    • Measure the resistance between ABS module C135-9, circuit VCA24 (GN/OG), harness side and ABS module C135-8, circuit VCA23 (BU/WH), harness side.
      Fig 3: Measuring Resistance Between ABS Module C135-9, Circuit VCA24 (GN/OG) And ABS Module C135-8, Circuit VCA23 (BU/WH)
      G08596609Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. Yes  : GO to AV9.
    2. No  : REPAIR the circuits. CLEAR the DTCs. REPEAT the self-test.
  9. AV9 CHECK THE DEDICATED CAN CIRCUITS FOR AN OPEN 
    • Measure the resistance between the ABS module C135, harness side and the RCM C310B, harness side as follows:
      ABS Module Circuit RCM
      C135-8 VCA23 (BU/WH) C310B-20
      C135-9 VCA24 (GN/OG) C310B-19
      Fig 4: Measuring Resistance Between ABS Module C135, Harness Side And RCM C310B, Harness Side
      G08596610Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. Yes  : GO to AV10.
    2. No  : REPAIR the circuit. CLEAR the DTCs. CYCLE the ignition key. REPEAT the self-test.
  10. AV10 CHECK FOR CORRECT RCM OPERATION 
    • Ignition OFF.
    • Disconnect all RCM and ABS module related in-line electrical connectors.
    • Inspect the RCM electrical connectors, the ABS module electrical connector and related in-line electrical connectors.
    • Repair:
      • corrosion (install new connector or terminal - clean module pins)
      • damaged or bent pins - install new terminals or pins
      • pushed-out pins - install new pins as necessary
    • Connect ABS module C135 and related in-line electrical connectors. Make sure they seat and latch correctly.
    • Make sure the connectors are seated correctly.Connect RCM C310A and C310B. Make sure they seat and latch correctly.
    • Operate the system, verify the concern is still present.
    • Is the concern still present? 
      1. 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, DIAGNOSE the RCM concern. REFER to SUPPLEMENTAL RESTRAINT SYSTEM . CLEAR the DTCs. REPEAT the ABS module self-test.
      2. No  : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues. CLEAR the DTCs. REPEAT the self-test.
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