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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 334 (Supplemental Restraint System - Pinpoint Tests Bf - BS) >> Pinpoint Test BP: B141B:11, B141B:12, B141B:13 and B141B:1A >> Pinpoint Test BP: B141B:11, B141B:12, B141B:13 and B141B:1A

Pinpoint Test BP: B141B:11, B141B:12, B141B:13 and B141B:1A

WARNING: This page is about a different car, the 2013 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
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.
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.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.
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  .
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.
NOTE: The SRS  must be fully operational and free of faults before releasing the vehicle to the customer.
  1. BP1 RETRIEVE RCM DTCs 
    • Ignition ON.
    • Using a scan tool, perform RCM  self-test to retrieve DTCs  .

    Was DTC B141B:11, B141B:12, B141B:13 or B141B:1A retrieved on-demand during self-test? 

    1. Yes  : This fault cannot be cleared until it is corrected and the DTC  is no longer retrieved on-demand during self-test.

      For DTC  B141B:13 or B141B:1A, GO to BP2  .

      For DTC  B141B:11, GO to  BP8.

      For DTC  B141B:12, GO to  BP10.

    2. No  : This is an intermittent fault when present as a CMDTC  only.

      For DTC  B141B:13 or B141B:1A, GO to  BP13.

      For DTC  B141B:11, GO to  BP14.

      For DTC  B141B:12, GO to  BP15.

  2. BP2 CHECK THE SECOND ROW DRIVER INFLATABLE SEATBELT DEPLOYMENT CONTROL RESISTANCE (DEPLOY_27_R) PID 
    • Using a scan tool, view RCM PIDs  .
    • Measure and record the resistance value displayed by the DEPLOY_27_R PID  .

    Does the PID value read between 1.44 and 3.52 ohms? 

    1. Yes  : GO to  BP12.
    2. No  : GO to BP3  .
  3. BP3 CHECK THE SECOND ROW DRIVER INFLATABLE SEATBELT DEPLOYMENT CONTROL RESISTANCE (DEPLOY_27_R) PID WHILE CARRYING OUT THE HARNESS TEST 
    • While monitoring the DEPLOY_27_R PID  , carry out the harness test of the second row left inflatable safety belt circuits and accessible connectors (including any inline connectors), by wiggling connectors and flexing the wire harness frequently.

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

    1. Yes  : DEPOWER the SRS  and REPAIR the connector, terminals or wire harness as needed.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to  BP17.

    2. No  : For PID  value less than 1.44 ohms, GO to BP4  .

      For PID  value greater than 3.52 ohms, GO to  BP6.

  4. BP4 CHECK THE SECOND ROW DRIVER INFLATABLE SEATBELT 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 reported fault changes, this indicates the RCM  is functioning correctly and is not the source of the fault.
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Vehicles equipped with a 40 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Remove 5 screws and the seat track inboard inner and outer covers.
      • Detach the cushion cover front and inboard retainers.
      • Lift the cushion cover and foam pad.
    • Vehicles equipped with a 60 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Detach the cushion cover retainers and position the cushion cover aside.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Ignition ON.
    • Using a scan tool, perform RCM  self-test to retrieve DTCs  .
    • DIAGNOSTIC TIP:  When viewing DTCs  with the second row left safety belt inflator disconnected, an open circuit fault is normally retrieved.

    Did the on-demand DTC change from B141B:1A to B141B:13? 

    1. Yes  : GO to  BP11.
    2. No  : GO to BP5  .
  5. BP5 CHECK FOR A SHORT BETWEEN SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS 

    Is the resistance greater than 10, 000 ohms? 

    1. Yes  : GO to  BP12.
    2. No  : REPAIR the circuits.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information. GO to  BP17.

  6. BP6 CHECK THE SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS FOR AN OPEN 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Vehicles equipped with a 40 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Remove 5 screws and the seat track inboard inner and outer covers.
      • Detach the cushion cover front and inboard retainers.
      • Lift the cushion cover and foam pad.
    • Vehicles equipped with a 60 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Detach the cushion cover retainers and position the cushion cover aside.
    • Disconnect RCM C310A  and C310B  .
    • Measure:
      Positive Lead Measurement/Action Negative Lead
      C310B-9  OHM C3644-1 
      C310B-10  OHM C3644-2 

    Are the resistances less than 0.5 ohm? 

    1. Yes  : GO to BP7  .
    2. No  : REPAIR the circuit(s).

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to  BP17.

  7. BP7 CHECK THE SECOND ROW DRIVER INFLATABLE SEATBELT 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 reported fault changes, this indicates the RCM  is functioning correctly and is not the source of the fault.
    • Connect RCM C310A  and C310B  .
    • Connect a fused jumper wire:
      Positive Lead Measurement/Action Negative Lead
      C3644-1  FUSED JUMPER WIRE C3644-2 
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Ignition ON.
    • Using a scan tool, perform RCM  self-test to retrieve DTCs  .
    • DIAGNOSTIC TIP:  When viewing DTCs  with the second row left safety belt inflator circuits shorted together, a low resistance fault is normally retrieved.

    Did the on-demand DTC change from B141B:13 to B141B:1A? 

    1. Yes  : REMOVE the fused jumper wire and GO to  BP11.
    2. No  : REMOVE the fused jumper wire and GO to  BP12.
  8. BP8 CHECK THE SECOND ROW DRIVER INFLATABLE SEATBELT 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 reported fault changes, this indicates the RCM  is functioning correctly and is not the source of the fault.
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Vehicles equipped with a 40 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Remove 5 screws and the seat track inboard inner and outer covers.
      • Detach the cushion cover front and inboard retainers.
      • Lift the cushion cover and foam pad.
    • Vehicles equipped with a 60 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Detach the cushion cover retainers and position the cushion cover aside.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Ignition ON.
    • Using a scan tool, perform RCM  self-test to retrieve DTCs  .
    • DIAGNOSTIC TIP:  When viewing DTCs  with the second row left safety belt inflator disconnected, an open circuit fault is normally retrieved.

    Did the on-demand DTC change from B141B:11 to B141B:13? 

    1. Yes  : GO to  BP11.
    2. No  : GO to BP9  .
  9. BP9 CHECK THE SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS FOR A SHORT TO GROUND 

    Are the resistances greater than 10, 000 ohms? 

    1. Yes  : GO to  BP12.
    2. No  : REPAIR the circuit(s).

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to  BP17.

  10. BP10 CHECK THE SECOND ROW LEFT SAFETY BELT INFLATOR CIRCUITS FOR A SHORT TO VOLTAGE 

    Is any voltage present? 

    1. Yes  : REPAIR the circuit(s).

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to  BP17.

    2. No  : GO to  BP12.
  11. BP11 CONFIRM THE SECOND ROW LEFT SAFETY BELT INFLATOR 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.

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

    1. Yes  : INSTALL a new second row left safety belt inflator. REFER to SAFETY BELT INFLATOR - 2ND ROW, 40 PERCENT , or SAFETY BELT BUCKLE AND INFLATOR - 2ND ROW, 60 PERCENT SEAT . GO to  BP17.
    2. 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  B141B:13 or B141B:1A, GO to  BP13.

      For DTC  B141B:11, GO to  BP14.

      For DTC  B141B:12, GO to  BP15.

  12. BP12 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.

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

    1. 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  BP17.
    2. 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  B141B:13 or B141B:1A, GO to BP13  .

      For DTC  B141B:11, GO to  BP14.

      For DTC  B141B:12, GO to  BP15.

  13. BP13 CHECK THE SECOND ROW DRIVER INFLATABLE SEATBELT DEPLOYMENT CONTROL RESISTANCE (DEPLOY_27_R) PID FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT FAULT 
    • Using a scan tool, view RCM PIDs  .
    • While monitoring the DEPLOY_27_R PID  , attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.

    Does the PID value read between 1.44 and 3.52 ohms? 

    1. 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  BP16.
    2. No  : DEPOWER the SRS  and REPAIR as necessary.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to  BP17.

  14. BP14 CHECK THE SECOND ROW DRIVER SIDE INFLATABLE SEATBELT DEPLOYMENT CONTROL CIRCUITS FOR AN INTERMITTENT SHORT TO GROUND FAULT 
    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.
    • Using a scan tool, perform RCM  self-test to retrieve DTCs  .

    Was DTC B141B:11 retrieved on-demand during self-test? 

    1. Yes  : DEPOWER the SRS  and REPAIR as necessary.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to  BP17.

    2. 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  BP16.
  15. BP15 CHECK THE SECOND ROW DRIVER SIDE INFLATABLE SEATBELT DEPLOYMENT CONTROL CIRCUITS FOR AN INTERMITTENT SHORT TO VOLTAGE FAULT 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Vehicles equipped with a 40 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Remove 5 screws and the seat track inboard inner and outer covers.
      • Detach the cushion cover front and inboard retainers.
      • Lift the cushion cover and foam pad.
    • Vehicles equipped with a 60 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Detach the cushion cover retainers and position the cushion cover aside.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Ignition ON.
    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness frequently.
    • Using a scan tool, perform RCM  self-test to retrieve DTCs  .

    Was DTC B141B:12 retrieved on-demand during self-test? 

    1. Yes  : DEPOWER the SRS  and REPAIR as necessary.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to  BP17.

    2. 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 BP16  .
  16. BP16 CHECK THE HARNESS AND CONNECTORS 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • Vehicles equipped with a 40 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Remove 5 screws and the seat track inboard inner and outer covers.
      • Detach the cushion cover front and inboard retainers.
      • Lift the cushion cover and foam pad.
      • 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.
    • Vehicles equipped with a 60 percent second row left seat:  Disconnect Second Row Left Safety Belt Inflator C3644  .
      • Detach the cushion cover retainers and position the cushion cover aside.
      • 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. Refer to RESTRAINTS CONTROL MODULE (RCM) .

    Were any concerns found? 

    1. Yes  : REPAIR as necessary.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for connector information.

      GO to BP17  .

    2. 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 BP17  .
  17. BP17 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).
    • If previously directed to depower the SRS  , repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING - WITH INTELLIGENT ACCESS (IA) .
    • 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? 

    1. Yes  : Do not clear any DTCs  until all DTCs  have been resolved. REFER to the appropriate DTC CHART in this information for pinpoint test direction.
    2. 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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