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Home >> Ford >> 2018 >> Focus SEL, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 46 (Supplemental Restraint System) >> Diagnosis And Testing >> Airbag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test >> PINPOINT TEST N : DTCs B1408:11, B1408:12, B1408:13 AND B1408:1A >> PINPOINT TEST N : DTCs B1408:11, B1408:12, B1408:13 AND B1408:1A

PINPOINT TEST N : DTCs B1408:11, B1408:12, B1408:13 AND B1408:1A

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. N1 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, perform RCM self-test.

    Was DTC B1408:11, B1408:12, B1408:13 or B1408:1A 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 B1408:13 or B1408:1A, GO to  N2. For DTC B1408:11, GO to  N8. For DTC B1408:12, GO to  N10.
    No  This is an intermittent fault when present as a CMDTC only. For DTC B1408:13 or B1408:1A, GO to  N13. For DTC B1408:11, GO to  N14. For DTC B1408:12, GO to  N15.

  8. N2 CHECK THE PASSENGER CURTAIN DEPLOYMENT CONTROL 1 RESISTANCE (DEPLOY_14_R) PID

    • Using a diagnostic scan tool, view RCM PIDs.
    • Monitor and record the resistance value displayed by the DEPLOY_14_R PID.

    Does the PID value read between 1.44 and 3.52 ohms? 

    Yes  GO to  N12.
    No  GO to  N3.

  9. N3 CHECK THE PASSENGER CURTAIN DEPLOYMENT CONTROL 1 RESISTANCE (DEPLOY_14_R) PID WHILE CARRYING OUT THE HARNESS TEST

    • While monitoring the DEPLOY_14_R PID, carry out the harness test of the RH side air curtain circuits and accessible connectors (including any inline connectors) by wiggling connectors and flexing the wire harness frequently. Record the resistance value indicated by the PID.

    Does the PID value read between 1.44 and 3.52 ohms while carrying out the harness test? 

    Yes  DEPOWER the SRS and REPAIR the connector, terminals or wire harness as needed. Refer to Connector Repair Procedures , for schematic and connector information. Go to  N17.
    No  For PID value less than 1.44 ohms, GO to  N4. For PID value greater than 3.52 ohms, GO to  N6.

  10. N4 CHECK THE PASSENGER CURTAIN DEPLOYMENT CONTROL 1 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 reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Ignition OFF.
    • Disconnect RH Side Air Curtain C9007 .
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the RH side air curtain disconnected, an open circuit fault is normally retrieved.

    Did the on-demand DTC change from B1408:1A to B1408:13? 

    Yes  GO to  N11.
    No  GO to  N5.

  11. N5 CHECK FOR A SHORT BETWEEN RH SIDE AIR CURTAIN CIRCUITS

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C9007-1
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C9007-2

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  N12.
    No  REPAIR the circuits. Refer to Connector Repair Procedures for schematic and connector information. Go to  N17.

  12. N6 CHECK THE RH SIDE AIR CURTAIN CIRCUITS FOR AN OPEN

    • Ignition OFF.
    • Disconnect RH Side Air Curtain C9007 .
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C310B-17
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C9007-1
      C310B-18
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 C9007-2

    Are the resistances less than 0.5 ohm? 

    Yes  GO to  N7.
    No  REPAIR the affected circuit. Refer to Connector Repair Procedures for schematic and connector information. Go to  N17.

  13. N7 CHECK THE PASSENGER CURTAIN DEPLOYMENT CONTROL 1 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 reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Connect a fused jumper wire:
      Positive Lead Measurement / Action Negative Lead
      C9007-1
      GFD135987Courtesy of FORD MOTOR COMPANY
      		 C9007-2
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the RH side air curtain circuits shorted together, a low resistance fault is normally retrieved.

    Did the on-demand DTC change from B1408:13 to B1408:1A? 

    Yes  REMOVE the fused jumper wire and GO to  N11.
    No  REMOVE the fused jumper wire and GO to  N12.

  14. N8 CHECK THE PASSENGER CURTAIN DEPLOYMENT CONTROL 1 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 reported fault changes, this indicates the RCM is functioning correctly and is not the source of the fault.

    • Ignition OFF.
    • Disconnect RH Side Air Curtain C9007 .
    • Ignition ON.
    • Using a diagnostic scan tool, perform RCM self-test.
    • DIAGNOSTIC TIP:  When viewing DTCs with the RH side air curtain disconnected, an open circuit fault is normally retrieved.

    Did the on-demand DTC change from B1408:11 to B1408:13? 

    Yes  GO to  N11.
    No  GO to  N9.

  15. N9 CHECK THE RH SIDE AIR CURTAIN CIRCUITS FOR A SHORT TO GROUND

    • Ignition OFF.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C9007-1
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground
      C9007-2
      GFD134423Courtesy of FORD MOTOR COMPANY
      		 Ground

    Are the resistances greater than 10, 000 ohms? 

    Yes  GO to  N12.
    No  REPAIR the affected circuit. Refer to Connector Repair Procedures for schematic and connector information. Go to  N17.

  16. N10 CHECK THE RH SIDE AIR CURTAIN CIRCUITS FOR A SHORT TO VOLTAGE

    • Ignition OFF.
    • Disconnect RH Side Air Curtain C9007 .
    • Ignition ON.
    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C9007-1
      GFD134422Courtesy of FORD MOTOR COMPANY
      		 Ground
      C9007-2
      GFD134422Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the affected circuit. Refer to Connector Repair Procedures for schematic and connector information. Go to  N17.
    No  GO to  N12.

  17. N11 CONFIRM THE RH SIDE AIR CURTAIN FAULT

    NOTE: Make sure all SRS components and the RCM electrical connectors are connected before carrying out 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 damage, pinched, cut or pierced wires.
      • Inspect RCM C310A and C310B

        CPA lever/lock for correct operation.

      • Inspect RH Side Air Curtain C9007 and make sure the CPA tabs are not broken and the clip is not damaged.
    • Connect RH Side Air Curtain C9007 .
    • 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 RH side air curtain. REFER to Safety Canopy . GO to  N17.
    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. For DTC B1408:13 or B1408:1A, GO to  N13. For DTC B1408:11, GO to  N14. For DTC B1408:12, GO to  N15.

  18. N12 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.

    • 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 damage, pinched, cut or pierced wires.
      • Inspect RCM C310A and C310B

        CPA lever/lock for correct operation.

    • Connect RH Side Air Curtain C9007 (if previously disconnected).
    • 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  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  N17.
    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. For DTC B1408:13 or B1408:1A, GO to  N13. For DTC B1408:11, GO to  N14. For DTC B1408:12, GO to  N15.

  19. N13 CHECK THE PASSENGER CURTAIN DEPLOYMENT CONTROL 1 RESISTANCE (DEPLOY_14_R) PID FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT FAULT

    • Using a diagnostic scan tool, view RCM PIDs.
    • While monitoring the DEPLOY_14_R PID, attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently. Record the resistance value indicated by the PID.

    Does the PID value read between 1.44 and 3.52 ohms? 

    Yes  The fault is not present and cannot be recreated at this time. 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  N16.
    No  DEPOWER the SRS and REPAIR as necessary. Refer to Connector Repair Procedures , for schematic and connector information. Go to  N17.

  20. N14 CHECK FOR AN INTERMITTENT PASSENGER CURTAIN DEPLOYMENT CONTROL 1 SHORT TO GROUND FAULT

    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was DTC B1408:11 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  N17.
    No  The fault is not present and cannot be recreated at this time. 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  N16.

  21. N15 CHECK FOR AN INTERMITTENT PASSENGER CURTAIN DEPLOYMENT CONTROL 1 SHORT TO BATTERY FAULT

    • Ignition OFF.
    • Disconnect RH Side Air Curtain C9007 .
    • Ignition ON.
    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.
    • Using a diagnostic scan tool, perform RCM self-test.

    Was DTC B1408:12 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  N17.
    No  The fault is not present and cannot be recreated at this time. 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  N16.

  22. N16 CHECK THE HARNESS AND CONNECTORS

    • Ignition OFF.
    • Disconnect RH Side Air Curtain C9007 .
      • 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 RH Side Air Curtain C9007

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

      • Inspect RCM C310A and C310B

        CPA lever/lock for correct operation.

    Were any concerns found? 

    Yes  REPAIR as necessary. Refer to Connector Repair Procedures , for schematic and connector information. Go to  N17.
    No  The fault is not present and cannot be recreated at this time. 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  N17.

  23. N17 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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