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Home >> Audi >> 2018 >> A6 Premium Plus >> Repair and Diagnosis >> External Pages >> Different car >> Section 272 (Supplemental Restraint System) >> Diagnosis And Testing >> Airbag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test >> PINPOINT TEST A : DTCs B0001:11, B0001:12, B0001:13 AND B0001:1A >> PINPOINT TEST A : DTCs B0001:11, B0001:12, B0001:13 AND B0001:1A

PINPOINT TEST A : DTCs B0001:11, B0001:12, B0001:13 AND B0001:1A

WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
  1. WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.
  2. NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when taking measurements. Failure to use the correct probe adapter(s) may damage the connector.
  3. NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
  4. 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.
  5. 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 the Ford parts catalog to make sure the correct component is being installed. If an incorrect SRS component is installed, DTCs may set.
  6. NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
  7. NOTE: On this vehicle, the clockspring is considered part of the SCCM, even though it can be serviced separately. In this test, the term SCCM refers to the clockspring.

  8. A1 RETRIEVE RCM DTCs

    • WARNING: Before beginning any service procedure, refer to Safety Warnings in Service Information

      REFER to Safety Belt and SRS Health and Safety Precautions in Description and Operation in Service Information .

    • Ignition ON.
    • Using a diagnostic scan tool, carry out the RCM self-test.

    Was DTC B0001:11, B0001:12, B0001:13 or B0001:1A retrieved on-demand during self-test? 

    Yes  This fault cannot be cleared until it is corrected and the DTC is no longer retrieved on-demand during self-test. For DTC B0001:13 or B0001:1A, GO to  A2. For DTC B0001:11, GO to  A12. For DTC B0001:12, GO to  A15.
    No  This is an intermittent fault when present as a CMDTC only. For DTC B0001:13 or B0001:1A, GO to  A20. For DTC B0001:11, GO to  A21. For DTC B0001:12, GO to  A22.

  9. A2 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL RESISTANCE (DEPLOY_00_R) PID

    • Using a diagnostic scan tool, view RCM PIDs.
    • Monitor and record the resistance value displayed by the DEPLOY_00_R PID.

    Does the PID value read between 1.62 and 4.46 ohms? 

    Yes  GO to  A19.
    No  GO to  A3.

  10. A3 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL RESISTANCE (DEPLOY_00_R) PID WHILE CARRYING OUT THE HARNESS TEST

    • Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column .
    • While monitoring the DEPLOY_00_R PID, carry out the harness test of the driver airbag circuits and accessible connectors (including any inline connectors) by wiggling and flexing the wire harness and connectors, tilting and rotating the steering wheel frequently. Record the resistance value indicated by the PID.

    Does the PID value read between 1.62 and 4.46 ohms while carrying out the harness test? 

    Yes  DEPOWER the SRS. REFER to Supplemental Restraint System (SRS) Depowering and Repowering .REPAIR the connector, terminals or wire harness or INSTALL a new clockspring as needed. REFER to Clockspring . Refer to Connector Repair Procedures , for schematic and connector information. Go to  A24.
    No  For PID value less than 1.62 ohms, GO to  A4. For PID value greater than 4.46 ohms, GO to  A8.

  11. A4 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (LOW RESISTANCE INDICATED)

    NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Ignition OFF.
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the driver airbag disconnected, open circuit faults are normally retrieved on stages 1 and 2.

    Did the on-demand DTC change from B0001:1A to B0001:13? 

    Yes  GO to  A17.
    No  GO to  A5.

  12. A5 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (LOW RESISTANCE INDICATED) (CLOCKSPRING DISCONNECTED)

    NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Ignition OFF.
    • Disconnect the Clockspring C218A .
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the driver airbag / clockspring disconnected, open circuit faults are normally retrieved on stages 1 and 2.

    Did the on-demand DTC change from B0001:1A to B0001:13? 

    Yes  GO to  A18.
    No  GO to  A6.

  13. A6 CHECK FOR A SHORT BETWEEN DRIVER AIRBAG STAGE 1 CIRCUITS

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C218A-6
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C218A-12

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  A19.
    No  GO to  A7.

  14. A7 CHECK THE RCM FOR LOW RESISTANCE

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      GFD137963Courtesy of FORD MOTOR COMPANY

      C310A-29 (component side)
      GFD134423Courtesy of FORD MOTOR COMPANY
      GFD137963Courtesy of FORD MOTOR COMPANY

      C310A-30 (component side)

    Is the resistance greater than 10, 000 ohms? 

    Yes  REPAIR the driver airbag stage 1 circuits for a short together. Refer to Connector Repair Procedures for schematic and connector information. Go to  A24.
    No  GO to  A19.

  15. A8 CHECK THE DRIVER AIRBAG STAGE 1 CIRCUITS FOR AN OPEN

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C310A-29
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C216A-1
      C310A-30
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C216A-2

    Are the resistances less than 1 ohm? 

    Yes  GO to  A10.
    No  GO to  A9.

  16. A9 CHECK THE DRIVER AIRBAG STAGE 1 CIRCUITS FOR AN OPEN (CLOCKSPRING DISCONNECTED)

    • Disconnect the Clockspring C218A .
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C310A-29
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C218A-6
      C310A-30
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C218A-12

    Are the resistances less than 0.5 ohm? 

    Yes  GO to  A18.
    No  REPAIR the circuit(s). Refer to Connector Repair Procedures for schematic and connector information. Go to  A24.

  17. A10 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (OPEN INDICATED)

    NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Connect:
      Positive Lead Measurement / Action Negative Lead
      C216A-1
      GFD135987Courtesy of FORD MOTOR COMPANY
      		 C216A-2
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the driver airbag stage 1 circuits shorted together, a low resistance fault is normally retrieved on stage 1. Stage 2 shows an open circuit fault because the driver airbag is disconnected.

    Was DTC B0001:1A retrieved on-demand during self-test? 

    Yes  REMOVE the fused jumper wire and GO to  A17.
    No  REMOVE the fused jumper wire and GO to  A11.

  18. A11 CHECK THE DRIVER AIRBAG STAGE 1 DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (OPEN INDICATED)

    • Ignition OFF.
    • Disconnect the Clockspring C218A .
    • Connect:
      Positive Lead Measurement / Action Negative Lead
      C218A-6
      GFD135987Courtesy of FORD MOTOR COMPANY
      		 C218A-12
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the driver airbag stage 1 circuits shorted together, a low resistance fault is normally retrieved on stage 1. Stage 2 shows an open circuit fault because the driver airbag is disconnected.

    Was DTC B0001:1A retrieved on-demand during self-test? 

    Yes  REMOVE the fused jumper wire and GO to  A18.
    No  REMOVE the fused jumper wire and GO to  A19.

  19. A12 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED)

    NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Ignition OFF.
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the driver airbag disconnected, open circuit faults are normally retrieved on stages 1 and 2.

    Did the on-demand DTC change from B0001:11 to B0001:13? 

    Yes  GO to  A17.
    No  GO to  A13.

  20. A13 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (SHORT TO GROUND INDICATED) (CLOCKSPRING DISCONNECTED)

    NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Ignition OFF.
    • Disconnect the Clockspring C218A .
      • Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column .
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the clockspring disconnected, open circuit faults are normally retrieved on driver airbag stages 1 and 2.

    Did the on-demand DTC change from B0001:11 to B0001:13? 

    Yes  GO to  A18.
    No  GO to  A14.

  21. A14 CHECK THE DRIVER AIRBAG STAGE 1 CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C218A-6
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground
      C218A-12
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  A19.
    No  Due to the shorting bar feature in the RCM electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.REPAIR the circuit(s). Refer to Connector Repair Procedures for schematic and connector information. Go to  A24.

  22. A15 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL DTC FOR A FAULT STATUS CHANGE (SHORT TO BATTERY INDICATED) (CLOCKSPRING DISCONNECTED)

    NOTE: This pinpoint test step attempts to change the fault reported by the RCM by inducing a different fault condition. If the fault reported changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Ignition OFF.
    • Remove the driver airbag. Refer to Driver Airbag .
      • Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column .
    • Disconnect the Clockspring C218A .
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the clockspring disconnected, open circuit faults are normally retrieved on driver airbag stages 1 and 2.

    Did the on-demand DTC change from B0001:12 to B0001:13? 

    Yes  GO to  A18.
    No  GO to  A16.

  23. A16 CHECK THE DRIVER AIRBAG STAGE 1 CIRCUITS FOR A SHORT TO VOLTAGE

    • Ignition OFF.
    • Ignition ON.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C218A-6
      GFD134422Courtesy of FORD MOTOR COMPANY
      		 Ground
      C218A-12
      GFD134422Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  Due to the shorting bar feature in the RCM electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.REPAIR the affected circuit. Refer to Connector Repair Procedures for schematic and connector information. Go to  A24.
    No  GO to  A19.

  24. A17 CONFIRM THE DRIVER AIRBAG 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.

    • Ignition OFF.
    • 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 damaged, pinched, cut or pierced wires.
      • Inspect RCM C310A and C310B

        CPA lever/lock for correct operation.

      • Inspect Driver Airbag C216A and make sure the CPA tabs are not broken and the clip is not damaged.
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was the original DTC retrieved on-demand during self-test? 

    Yes  INSTALL a new driver airbag. REFER to Driver Airbag . GO to  A24.
    No  In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. For DTC B0001:13 or B0001:1A, GO to  A20. For DTC B0001:11, GO to  A21. For DTC B0001:12, GO to  A22.

  25. A18 CONFIRM THE CLOCKSPRING FAULT

    NOTE: Make sure all restraint system components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.

    • Ignition OFF.
    • 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 damaged, pinched, cut or pierced wires.
      • Inspect RCM C310A and C310B

        CPA lever/lock for correct operation.

    • Connect the Clockspring C218A .
    • Connect RCM C310A and C310B (if previously disconnected).
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was the original DTC retrieved on-demand during self-test? 

    Yes  INSTALL a new clockspring. REFER to Clockspring . GO to  A24.
    No  In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. For DTC B0001:13 or B0001:1A, GO to  A20. For DTC B0001:11, GO to  A21. For DTC B0001:12, GO to  A22.

  26. A19 CONFIRM THE RCM FAULT

    NOTE: Make sure all restraint system components and the RCM electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.

    • Ignition OFF.
    • 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 damaged, pinched, cut or pierced wires.
      • Inspect RCM C310A and C310B

        CPA lever/lock for correct operation.

    • Connect the Clockspring C218A (if previously disconnected).
    • Connect RCM C310A and C310B (if previously disconnected).
    • Install the driver airbag (if previously removed). Refer to Driver Airbag .
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was the original DTC 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  A24.
    No  In the process of diagnosing the fault, the fault condition has become intermittent. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. For DTC B0001:13 or B0001:1A, GO to  A20. For DTC B0001:11, GO to  A21. For DTC B0001:12, GO to  A22.

  27. A20 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL RESISTANCE (DEPLOY_00_R) PID FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT FAULT

    • Ignition OFF.
    • Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column .
    • Ignition ON.
    • Using a diagnostic scan tool, view RCM PIDs.
    • While monitoring the DEPLOY_00_R PID, attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness, tilting and rotating the steering wheel frequently. Record the resistance value indicated by the PID.

    Does the PID value read between 1.62 and 4.46 ohms? 

    Yes  The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. GO to  A23.
    No  If the driver airbag PID indicates incorrect resistance only when the steering wheel is rotated, INSTALL a new clockspring. REFER to Clockspring . For all other faults, DEPOWER the SRS and REPAIR as necessary. Refer to Connector Repair Procedures , for schematic and connector information. Go to  A24.

  28. A21 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL FOR AN INTERMITTENT SHORT TO GROUND FAULT

    • Ignition OFF.
    • Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column .
    • Ignition ON.
    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness, tilting and rotating the steering wheel frequently.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was DTC B0001:11 retrieved on-demand during self-test? 

    Yes  DEPOWER the SRS and REPAIR as necessary. Refer to Connector Repair Procedures , for schematic and connector information. Go to  A24.
    No  The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. GO to  A23.

  29. A22 CHECK THE DRIVER FRONTAL STAGE 1 DEPLOYMENT CONTROL FOR AN INTERMITTENT SHORT TO BATTERY FAULT

    • Ignition OFF.
    • Remove the steering column shrouds to access the clockspring connectors. Refer to Steering Column .
    • Ignition ON.
    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness, tilting and rotating the steering wheel frequently.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was DTC B0001:12 retrieved on-demand during self-test? 

    Yes  DEPOWER the SRS and REPAIR as necessary. Refer to Connector Repair Procedures , for schematic and connector information. Go to  A24.
    No  The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. GO to  A23.

  30. A23 CHECK THE HARNESS AND CONNECTORS

    • Ignition OFF.
    • Remove the driver airbag. Refer to Driver Airbag .
      • Inspect connector(s) (including any inline connectors) for corrosion, 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.

      • Inspect Driver Airbag C216A

        CPA tab to verify that it is correctly seated and free of damage.

    Were any concerns found? 

    Yes  REPAIR as necessary. Refer to Connector Repair Procedures , for schematic and connector information. Go to  A24.
    No  The fault is not present and cannot be recreated at this time. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test. GO to  A24.

  31. A24 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.
    • Using a diagnostic scan tool, perform RCM self-test.

    Are any RCM DTCs retrieved on-demand during self-test? 

    Yes  Do not clear any DTCs until all DTCs have been resolved. DIAGNOSE and REPAIR the RCM DTCs. REFER to Restraints Control Module (RCM) DTC Chart  for pinpoint test direction.
    No  The repair is complete. RETURN the vehicle to the customer.
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