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Home >> Ford >> 2015 >> Explorer Limited, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System - Pinpoint Tests A - Z >> PINPOINT TEST W : BXXXX:4A (any BXXXX DTC with a 4A failure type) Incorrect Component Installed >> PINPOINT TEST W : BXXXX:4A (any BXXXX DTC with a 4A failure type) Incorrect Component Installed

PINPOINT TEST W : BXXXX:4A (any BXXXX DTC with a 4A failure type) Incorrect Component Installed

  1. WARNING: Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow this instruction may result in the accidental deployment of the Safety Canopy and cause serious personal injury or death.
  2. WARNING: Never disassemble or tamper with seat belt deployable components, including pretensioners, load limiters and inflators. Never back probe deployable device electrical connectors. Tampering or back probing may cause an accidental deployment and result in personal injury or death.
  3. WARNING: Never probe the electrical connectors on airbag, Safety Canopy or side air curtain assemblies. Failure to follow this instruction may result in the accidental deployment of these assemblies, which increases the risk of serious personal injury or death.
  4. NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
  5. NOTE: Only disconnect or reconnect SRS components when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS. 
  6. NOTE: Always make sure the correct SRS component is being installed. Parts released for other vehicles may not be compatible even if they appear physically similar. Check the part number listed in Ford Catalog Advantage™ or equivalent to make sure the correct component is being installed. If an incorrect SRS component is installed, DTCs may set.
  7. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.

  8. W1 RETRIEVE RCM DTCs

    • Ignition ON.
    • Using a scan tool, perform RCM self-test to retrieve DTCs.

    Were any incorrect component installed DTCs retrieved on-demand during self-test? 

    Yes  This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during self-test. If DTC B00A0:4A was retrieved, GO to Pinpoint Test Q . For all other incorrect component installed DTCs, GO to  W2.
    No  This is an intermittent fault when present as a CMDTC only. GO to  W7.

  9. W2 CHECK THE VEHICLE HISTORY

    • Ignition OFF.
    • Check the vehicle repair history.

    Has a new RCM or OCSM been installed during this or a prior repair? 

    Yes  GO to  W3.
    No  GO to  W4.

  10. W3 CHECK THE RCM AND OCSM VEHICLE IDENTIFICATION PIDs

    • Ignition ON.
    • Using a scan tool, view RCM PIDs.
      • View and record:
      • V_ID_14229_RCM
      • OCS_MY
    • Using a scan tool, view OCSM PIDs.
      • View and record:
      • V_ID_14229_OCS
      • MY_14229
    • Verify the correct vehicle application.

    Do the PID values match the vehicle application? 

    Yes  GO to  W4.
    No  INSTALL the correct RCM or OCSM. REFER to Restraints Control Module (RCM) or Occupant Classification System (OCS) Sensor . GO to  W8.

  11. W4 VERIFY THE ABS MODULE PART NUMBER

    • Ignition ON.
    • Using the Log Viewer function of the scan tool, retrieve and record the ABS module part number from Log Viewer.
    • Check the part number recorded against the number listed in Ford Catalog Advantage™ or equivalent and verify the correct ABS module is present in the vehicle.

    Is the correct ABS module installed? 

    Yes  GO to  W5.
    No  INSTALL the correct ABS module. REFER to Anti-Lock Brake System (ABS) and Stability Control . GO to  W8.

  12. W5 VERIFY THE RCM CONFIGURATION

    • Ignition ON.
    • Carry out PMI for the RCM. Use As-Built data when carrying out PMI. Refer to the scan tool instructions to carry out PMI.
    • Using a scan tool, perform RCM self-test to retrieve DTCs.

    Were any incorrect component installed DTCs retrieved on-demand during self-test? 

    Yes  GO to  W6.
    No  Fault corrected. GO to  W8.

  13. W6 CONFIRM THE RCM FAULT

    NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
    • Prior to reconnecting any previously disconnected SRS component:
      • inspect connector(s) (including any inline connectors) for pushed-out, loose or spread terminals and loose or frayed wire connections at terminals.
      • inspect wire harness for any damage, pinched, cut or pierced wires.
      • inspect RCM C310A and C310B CPA lever/lock for correct operation. Refer to Restraints Control Module (RCM) .
      • repair any concerns found. Refer to CONNECTOR REPAIR PROCEDURES for schematic and connector information.
    • Connect all previously disconnected component(s)/connector(s).
    • Ignition ON.
    • Using a scan tool, perform RCM self-test to retrieve DTCs.

    Were any incorrect component installed DTCs retrieved on-demand during self-test? 

    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 RCM. REFER to Restraints Control Module (RCM) . GO to  W8.
    No  In the process of diagnosing the fault, the fault condition has become intermittent.
    Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. 
    GO to  W7.

  14. W7 CHECK FOR AN INTERMITTENT FAULT

    • Using a scan tool, perform RCM self-test to retrieve DTCs.

    Were any DTCs retrieved on-demand during self-test? 

    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 RCM. REFER to Restraints Control Module (RCM) . GO to  W8.
    No  CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition frequently. ACTIVATE other systems in the same wire harness.
    Do not install any new SRS components at this time. Install SRS components only when directed to do so in the pinpoint test. 
    GO to  W8.

  15. W8 CHECK FOR ADDITIONAL SRS DTCs

    • 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.

    • Reconnect all SRS components (if previously disconnected).
    • Ignition ON.
      NOTE: When selecting Restraints from the Self-Test menu, DTCs are retrieved from the RCM and OCSM.
    • Using a scan tool, perform

      Restraints  self-test to retrieve DTCs.

    Are any RCM and/or OCSM DTCs retrieved on-demand during self-test? 

    Yes  Do not clear any DTCs until all DTCs have been resolved. REFER to the appropriate DTC Chart in this service information for pinpoint test direction.
    No  CLEAR all RCM and OCSM CMDTCs. PROVE OUT the SRS. The repair is complete. RETURN the vehicle to the customer.
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