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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 562 (Supplemental Restraint System) >> Diagnosis And Testing >> Airbag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test U: DTCs B1211:11, B1211:12, B1211:13 and B1211:1A >> PINPOINT TEST U: DTCs B1211:11, B1211:12, B1211:13 AND B1211:1A

PINPOINT TEST U: DTCs B1211:11, B1211:12, B1211:13 AND B1211:1A

WARNING: This page is about a different car, the 2014 Ford F-150. 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: 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.
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 Supplemental Restraint System (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 the parts catalog 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. U1 RETRIEVE RCM DTCs 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .

    Was DTC B1211:11, B1211:12, B1211:13 or B1211:1A 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 the self-test.

      For regular cab and Crew Cab vehicles with DTC B1211:13 or B1211:1A, GO to U2  .

      For Super Cab vehicles with DTC B1211:13 or B1211:1A, GO to  U3.

      For DTC B1211:11, GO to  U9.

      For DTC B1211:12, GO to  U11.

    2. No  : This is an intermittent fault when present as a Continuous Memory Diagnostic Trouble Code (CMDTC) only.

      For DTC B1211:13 or B1211:1A, GO to  U14.

      For DTC B1211:11, GO to  U15.

      For DTC B1211:12, GO to  U16.

  2. U2 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER ELECTRICAL CONNECTOR 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Gain access to the safety belt retractor pretensioner and inspect for the following:
      • the Connector Position Assurance (CPA) tabs are not broken or the clip is not damaged.
      • the CPA  tab is fully and correctly seated.
        Fig 1: Locating Driver Seatbelt Retractor Pretensioner Electrical Connector
        G06404138Courtesy of FORD MOTOR CO.

    Is the CPA clip installed correctly, not damaged or broken and fully seated? 

    1. Yes  : GO to U3  .
    2. No  : If the CPA  clip is damaged or broken, INSTALL a pigtail connector for the pretensioner using pigtail kit 8U2Z-14S411-YA.

      If the CPA  clip is not correctly installed or seated, REPAIR as necessary. GO to  U18.

  3. U3 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL RESISTANCE (DEPLOY_23_R) PID 

    Does the PID value read between 1.7 and 2.78 ohms? 

    1. Yes  : GO to  U13.
    2. No  : GO to U4  .
  4. U4 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL RESISTANCE (DEPLOY_23_R) PID WHILE CARRYING OUT A HARNESS TEST 
    • While monitoring the DEPLOY_23_R PID, carry out a harness test of the driver safety belt retractor pretensioner circuits and accessible connectors (including any in-line connectors), by wiggling connectors and flexing the wire harness.

    Does the PID value read between 1.7 and 2.78 ohms while carrying out a harness test? 

    1. Yes  : DEPOWER the SRS  and REPAIR the connector, terminals or wire harness as needed. Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

      GO to  U18.

    2. No  : For PID value less than 1.7 ohms, GO to U5  .

      For PID value greater than 2.78 ohms, GO to  U7.

  5. U5 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER 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.

    Did the on-demand DTC change from B1211:1A to a B1211:13? 

    1. Yes  : GO to  U12.
    2. No  : GO to U6  .
  6. U6 CHECK FOR A SHORT BETWEEN DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUITS 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: RCM  C310A and C310B.
    • For regular cab and Crew Cab,  measure the resistance between the driver safety belt retractor pretensioner C3201-1  , circuit CR146 (GY/VT), harness side and C3201-2  , circuit RR146 (BU/BN), harness side.
      Fig 2: Measuring Resistance Between Driver Safety Belt Retractor Pretensioner C3201-1, Circuit CR146 (GY/VT) And C3201-2, Circuit RR146 (BU/BN)
      G06100094Courtesy of FORD MOTOR CO.
    • For Super Cab,  measure the resistance between the driver safety belt retractor pretensioner C727-1  , circuit CR146 (GY/VT), harness side and C727-2  , circuit RR146 (BU/BN), harness side.
      Fig 3: Measuring Resistance Between Driver Safety Belt Retractor Pretensioner C727-1, Circuit CR146 (GY/VT) And C727-2, Circuit RR146 (BU/BN)
      G06063743Courtesy of FORD MOTOR CO.

    Is the resistance greater than 10, 000 ohms? 

    1. Yes  : GO to  U13.
    2. No  : REPAIR circuits CR146 (GY/VT) and RR146 (BU/BN).

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to  U18.

  7. U7 CHECK THE DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUITS FOR AN OPEN 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Safety Belt Retractor Pretensioner C3201 (regular cab and Crew Cab) or C727 (Super Cab).
    • Disconnect: RCM  C310A and C310B.
    • For regular cab and Crew Cab,  measure the resistance between RCM  , harness side and driver safety belt retractor pretensioner C3201, harness side using the following chart.
      RCM Circuit Driver Safety Belt Retractor Pretensioner
      C310B-2  CR146 (GY/VT) C3201-1 
      C310B-1  RR146 (BU/BN) C3201-2 
      • Fig 4: Measuring Resistance Between RCM And Driver Safety Belt Retractor Pretensioner C3201
      G06174059Courtesy of FORD MOTOR CO.
    • For Super Cab  , measure the resistance between RCM  , harness side and driver safety belt retractor pretensioner C727, harness side using the following chart.
      RCM Circuit Driver Safety Belt Retractor Pretensioner
      C310B-2  CR146 (GY/VT) C727-1 
      C310B-1  RR146 (BU/BN) C727-2 
      • Fig 5: Measuring Resistance Between RCM And Driver Safety Belt Retractor Pretensioner C727
      G06459161Courtesy of FORD MOTOR CO.

    Are the resistances less than 0.5 ohm? 

    1. Yes  : GO to U8  .
    2. No  : REPAIR circuit CR146 (GY/VT) or RR146 (BU/BN).

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to  U18.

  8. U8 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER 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: RCM  C310A and C310B.
    • For regular cab and Crew Cab,  connect a fused jumper wire between the driver safety belt retractor pretensioner C3201-1  , circuit CR146 (GY/VT), harness side and C3201-2  , circuit RR146 (BU/BN), harness side.
      Fig 6: Connecting Fused Jumper Wire Between Driver Safety Belt Retractor Pretensioner C3201-1, Circuit CR146 (GY/VT) And C3201-2, Circuit RR146 (BU/BN)
      G07966073Courtesy of FORD MOTOR CO.
    • For Super Cab,  connect a fused jumper wire between the driver safety belt retractor pretensioner C727-1  , circuit CR146 (GY/VT), harness side and C727-2  , circuit RR146 (BU/BN), harness side.
      Fig 7: Connecting Fused Jumper Wire Between Driver Safety Belt Retractor Pretensioner C727-1, Circuit CR146 (GY/VT) And C727-2, Circuit RR146 (BU/BN)
      G06509023Courtesy of FORD MOTOR CO.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • DIAGNOSTIC TIP:  When viewing DTCs with the driver safety belt retractor pretensioner circuits shorted together, a low resistance fault is normally retrieved.

    Did the on-demand DTC change from B1211:13 to B1211:1A? 

    1. Yes  : REMOVE the fused jumper wire and GO to  U12.
    2. No  : REMOVE the fused jumper wire and GO to  U13.
  9. U9 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER 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.

    Did the on-demand DTC change from B1211:11 to B1211:13? 

    1. Yes  : GO to  U12.
    2. No  : GO to U10  .
  10. U10 CHECK THE DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUITS FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: RCM  C310A and C310B.
    • For regular cab and Crew Cab,  measure the resistance between the driver safety belt retractor pretensioner:
      • C3201-1  , circuit CR146 (GY/VT), harness side and ground.
      • C3201-2  , circuit RR146 (BU/BN), harness side and ground.
        Fig 8: Measuring Resistance Between Driver Safety Belt Retractor Pretensioner C3201-1, Circuit CR146 (GY/VT) And Ground
        G06174061Courtesy of FORD MOTOR CO.
    • For Super Cab,  measure the resistance between the driver safety belt retractor pretensioner:
      • C727-1  , circuit CR146 (GY/VT), harness side and ground.
      • C727-2  , circuit RR146 (BU/BN), harness side and ground.
        Fig 9: Measuring Resistance Between Driver Safety Belt Retractor Pretensioner C727-1, Circuit CR146 (GY/VT) And Ground
        G06063741Courtesy of FORD MOTOR CO.

    Are the resistances greater than 10, 000 ohms? 

    1. Yes  : GO to  U13.
    2. No  : REPAIR circuit CR146 (GY/VT) or RR146 (BU/BN).

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information. GO to  U18.

  11. U11 CHECK THE DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUITS FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Safety Belt Retractor Pretensioner C3201 (regular cab and Crew Cab) or C727 (Super Cab).
    • Disconnect: RCM  C310A and C310B.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Ignition ON.
    • For regular cab and Crew Cab,  measure the voltage between the driver safety belt retractor pretensioner:
      • C3201-1  , circuit CR146 (GY/VT), harness side and ground.
      • C3201-2  , circuit RR146 (BU/BN), harness side and ground.
        Fig 10: Measuring Voltage Between Driver Safety Belt Retractor Pretensioner C3201-1, Circuit CR146 (GY/VT) And Ground
        G06063737Courtesy of FORD MOTOR CO.
    • For Super Cab,  measure the voltage between the driver safety belt retractor pretensioner:
      • C727-1  , circuit CR146 (GY/VT), harness side and ground.
      • C727-2  , circuit RR146 (BU/BN), harness side and ground.
        Fig 11: Measuring Voltage Between Driver Safety Belt Retractor Pretensioner C727-1, Circuit CR146 (GY/VT) And Ground
        G06063742Courtesy of FORD MOTOR CO.

    Is voltage present on either circuit? 

    1. Yes  : REPAIR circuit CR146 (GY/VT) or RR146 (BU/BN).

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

      GO to  U18.

    2. No  : GO to  U13.
  12. U12 CONFIRM THE DRIVER SAFETY BELT RETRACTOR PRETENSIONER FAULT 
    NOTE: Make sure all restraint system components, sensor electrical connectors and the RCM  electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Prior to reconnecting any previously disconnected SRS  component:
      • inspect connector(s) (including any in-line 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 C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM) .
      • repair any concerns found.

        Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

    • Connect: Driver Safety Belt Retractor Pretensioner C3201 (regular cab and Crew Cab) or C727 (Super Cab).
    • Connect: RCM  C310A and C310B (if previously disconnected).
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .

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

    1. Yes  : INSTALL a new driver safety belt retractor pretensioner. REFER to SAFETY BELT SYSTEM . GO to  U18.
    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. Install SRS components only when directed to do so in the pinpoint test  .

      For DTC B1211:13 or B1211:1A, GO to  U14.

      For DTC B1211:11, GO to  U15.

      For DTC B1211:12, GO to  U16.

  13. U13 CONFIRM THE RCM FAULT 
    NOTE: Make sure all restraint system components, sensor electrical connectors and the RCM  electrical connectors are connected before carrying out the self-test. If not, DTCs will be recorded.
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Prior to reconnecting any previously disconnected SRS  component:
      • inspect connector(s) (including any in-line 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 C310A and C310B CPA  lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM) .
      • repair any concerns found.

        Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

    • Connect: Driver Safety Belt Retractor Pretensioner C3201 (regular cab and Crew Cab) or C727 (Super Cab).
    • Connect: RCM  C310A and C310B (if previously disconnected).
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .

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

    1. Yes  : INSTALL a new RCM  . REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to  U18.
    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. Install SRS components only when directed to do so in the pinpoint test  .

      For DTC B1211:13 or B1211:1A, GO to U14  .

      For DTC B1211:11, GO to  U15.

      For DTC B1211:12, GO to  U16.

  14. U14 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL RESISTANCE (DEPLOY_23_R) PID FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT FAULT 
    • Enter the following diagnostic mode on the scan tool: Data Logger - RCM  .
      • Monitor and record PID DEPLOY_23_R.
    • Attempt to recreate the fault by wiggling the connectors (including any in-line connectors) and flexing the wire harness.

    Does the PID value read between 1.7 and 2.78 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. Install SRS components only when directed to do so in the pinpoint test  . GO to  U17.
    2. No  : DEPOWER the SRS  and REPAIR as necessary.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

      GO to  U18.

  15. U15 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL FOR AN INTERMITTENT SHORT TO GROUND FAULT 
    • Ignition ON.
    • Attempt to recreate the fault by wiggling connectors (including any in-line connectors) and flexing the wire harness.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .

    Was DTC B1211:11 retrieved on-demand during self-test? 

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

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

      GO to  U18.

    2. 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  U17.
  16. U16 CHECK THE DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL FOR AN INTERMITTENT SHORT TO VOLTAGE FAULT 

    Was DTC B1211:12 retrieved on-demand during self-test? 

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

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

      GO to  U18.

    2. 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 U17  .
  17. U17 CHECK HARNESS AND CONNECTORS 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Safety Belt Retractor Pretensioner C3201  (regular cab and Crew Cab) or C727  (Super Cab).
      • inspect connector(s) (including any in-line 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.

    Were any concerns found? 

    1. Yes  : REPAIR as necessary.

      Refer to OEM CONNECTOR REPAIR PROCEDURES for schematic and connector information.

      GO to U18  .

    2. 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 U18  .
  18. U18 CHECK FOR ADDITIONAL SRS DTCs 
    • Ignition OFF.
      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.
    • 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 .
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - Restraints.
      NOTE: When selecting Restraints from the Self Test menu, DTCs are retrieved from the RCM  and OCSM  .

    Are any RCM and/or OCSM DTCs retrieved? 

    1. Yes  : Do not clear any DTCs until all DTCs have been resolved. GO to the DTC CHARTS  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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