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Home >> Ford >> 2011 >> Expedition RWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System >> Diagnosis And Testing >> Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Test - Restraints Control Module (RCM) >> Pinpoint Test C: DTCs B0010:11, B0010:12, B0010:13 and B0010:1A >> Pinpoint Test D: DTCs B0011:11, B0011:12, B0011:13 and B0011:1A

Pinpoint Test D: DTCs B0011:11, B0011:12, B0011:13 and B0011:1A

Refer to the appropriate SYSTEM WIRING DIAGRAMS article for Supplemental Restraint System schematic and connector information.



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 probe the electrical connectors on air bag, Safety Canopy® or side air curtain modules. Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious 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.

Most faults are due to connector and/or wiring concerns. Carry out a thorough inspection and verification before proceeding with the pinpoint test.

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 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. D1 RETRIEVE RCM DTCs 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Was DTC B0011:11, B0011:12, B0011:13 or B0011:1A 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 B0011:13 or B0011:1A, go to D2  .

      For DTC B0011:11, go to  D8.

      For DTC B0011:12, go to  D10.

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

      For DTC B0011:13 or B0011:1A, go to  D13.

      For DTC B0011:11, go to  D14.

      For DTC B0011:12, go to  D15.

  2. D2 CHECK THE PASSENGER FRONTAL STAGE 2 DEPLOYMENT CONTROL RESISTANCE (DEPLOY - 06 - R) PID 
    • Enter the following diagnostic mode on the scan tool: DataLogger - RCM  .
      • DEPLOY - 06 - R PID
    • Does the PID value read between 1.7 and 2.78 ohms? 
    • Yes:  Go to  D12.
    • No:  Go to D3  .
  3. D3 CHECK THE PASSENGER FRONTAL STAGE 2 DEPLOYMENT CONTROL RESISTANCE (DEPLOY - 06 - R) PID WHILE CARRYING OUT THE HARNESS TEST 
    • While monitoring the DEPLOY - 06 - R PID, carry out the harness test of the passenger air bag module circuits and accessible connectors (including any in-line connectors), by wiggling connectors and flexing the wire harness frequently.
    • Does the PID value read between 1.7 and 2.78 ohms while carrying out the harness test? 
    • Yes:  DEPOWER the SRS  and REPAIR the connector, terminals or wire harness as needed.

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematics, Connector Repair Procedures and connector information.

      Go to  D17.

    • No:  For PID value less than 1.7 ohms, go to D4  .

      For PID value greater than 2.78 ohms, go to  D6.

  4. D4 CHECK THE PASSENGER FRONTAL STAGE 2 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  in this information.
    • Disconnect: Passenger Air Bag Module C256.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • DIAGNOSTIC TIP:  When viewing DTCs with the passenger air bag module disconnected, open circuit faults are normally retrieved on passenger air bag stages 1 and 2.
    • Did the on-demand DTC change from B0011:1A to B0011:13? 
    • Yes:  Go to  D11.
    • No:  Go to D5  .
  5. D5 CHECK FOR A SHORT BETWEEN PASSENGER AIR BAG STAGE 2 CIRCUITS 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Disconnect: RCM  C310A and C310B.
    • Measure the resistance between C256-1, circuit CR104 (YE/GY), harness side and C256-2, circuit RR104 (WH/BU), harness side.
      Fig 1: Measuring Resistance Between C256-1, Circuit CR104 (YE/GY) And C256-2, Circuit RR104 (WH/BU), Harness Side
      G07460548Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    • Yes:  Go to  D12.
    • No:  REPAIR circuits CR104 (YE/GY) and RR104 (WH/BU).

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

      Go to  D17.

  6. D6 CHECK THE PASSENGER AIR BAG STAGE 2 CIRCUITS FOR AN OPEN 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Disconnect: Passenger Air Bag Module C256.
    • Disconnect: RCM  C310A and C310B.
    • Measure the resistance between RCM  C310A, harness side and passenger air bag module C256, harness side using the following chart.
      TERMINAL RESISTANCE REFERENCE CHART

      RCM  Circuit Passenger Air Bag Module Stage 2
      C310A-10 CR104 (YE/GY) C256-1
      C310A-9 RR104 (WH/BU) C256-2
      Fig 2: Measuring Resistance Between RCM C310A And Passenger Air Bag Module C256, Harness Side
      G07460549Courtesy of FORD MOTOR CO.
    • Are the resistances less than 0.5 ohm? 
    • Yes:  Go to D7  .
    • No:  REPAIR circuit CR104 (YE/GY) or RR104 (WH/BU).

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

      Go to  D17.

  7. D7 CHECK THE PASSENGER FRONTAL STAGE 2 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.
    • Connect a fused jumper wire between passenger air bag module C256-1, circuit CR104 (YE/GY), harness side, and C256-2, circuit RR104 (WH/BU), harness side.
      Fig 3: Connecting Fused Jumper Wire Between Passenger Air Bag Module C256-1, Circuit CR104 (YE/GY) And C256-2, Circuit RR104 (WH/BU), Harness Side
      G07460550Courtesy 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  in this information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • DIAGNOSTIC TIP:  When viewing DTCs with the passenger air bag module stage 2 circuits shorted together, a low resistance fault is normally retrieved on stage 2. Stage 1 shows an open circuit fault due to the passenger air bag module being disconnected.
    • Did the on-demand DTC change from B0011:13 to B0011:1A? 
    • Yes:  REMOVE the fused jumper wire and go to  D11.
    • No:  REMOVE the fused jumper wire and go to  D12.
  8. D8 CHECK THE PASSENGER FRONTAL STAGE 2 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  in this information.
    • Disconnect: Passenger Air Bag Module C256.
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • DIAGNOSTIC TIP:  When viewing DTCs with the passenger air bag module disconnected, open circuit faults are normally retrieved on stages 1 and 2.
    • Did the on-demand DTC change from B0011:11 to B0011:13? 
    • Yes:  Go to  D11.
    • No:  Go to D9  .
  9. D9 CHECK THE PASSENGER AIR BAG STAGE 2 CIRCUITS FOR A SHORT TO GROUND 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Disconnect: RCM  C310A and C310B.
    • Measure the resistance between passenger air bag module:
      • C256-1, circuit CR104 (YE/GY), harness side and ground.
      • C256-2, circuit RR104 (WH/BU), harness side and ground.
        Fig 4: Measuring Resistance Between Passenger Air Bag Module C256-1, Circuit CR104 (YE/GY) And C256-2, Circuit RR104 (WH/BU) Harness Side And Ground
        G07460551Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    • Yes:  Go to  D12.
    • No:  REPAIR circuit CR104 (YE/GY) or RR104 (WH/BU).

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

      Go to  D17.

  10. D10 CHECK THE PASSENGER AIR BAG STAGE 2 CIRCUITS FOR A SHORT TO VOLTAGE 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Disconnect: Passenger Air Bag Module C256.
    • 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  in this information.
    • Ignition ON.
    • Measure the voltage between passenger air bag module:
      • C256-1, circuit CR104 (YE/GY), harness side and ground.
      • C256-2, circuit RR104 (WH/BU), harness side and ground.
        Fig 5: Measuring Voltage Between Passenger Air Bag Module C256-1, Circuit CR104 (YE/GY) And C256-2, Circuit RR104 (WH/BU) Harness Side And Ground
        G07460552Courtesy of FORD MOTOR CO.
    • Is any voltage present? 
    • Yes:  REPAIR circuit CR104 (YE/GY) or RR104 (WH/BU).

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematic and connector information.

      Go to  D17.

    • No:  Go to  D12.
  11. D11 CONFIRM THE PASSENGER AIR BAG MODULE 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.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • 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 damaged, pinched, cut or pierced wires.
      • inspect RCM  C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM)  in this information.
      • repair any concerns found.

        Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematics, Connector Repair Procedures and connector information.

    • Connect: Passenger Air Bag Module C256 (if previously disconnected).
    • Repower the SRS  . Do not  prove out the SRS  at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Was the original DTC retrieved on-demand during self-test? 
    • Yes:  INSTALL a new passenger air bag module. Refer to PASSENGER AIR BAG MODULE  in this information. Go to  D17.
    • 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 B0011:13 or B0011:1A, go to  D13.

      For DTC B0011:11, go to  D14.

      For DTC B0011:12, go to  D15.

  12. D12 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.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • 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 RCM  C310A and C310B Connector Position Assurance (CPA) lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM)  in this information.
      • repair any concerns found.

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematics, Connector Repair Procedures and connector information.

    • Connect: Passenger Air Bag Module C256 (if previously disconnected).
    • 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  in this information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Was the original DTC retrieved on-demand during self-test? 
    • Yes:  INSTALL a new RCM  . Refer to RESTRAINTS CONTROL MODULE (RCM)  in this information. Go to  D17.
    • 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 B0011:13 or B0011:1A, go to D13  .

      For DTC B0011:11, go to  D14.

      For DTC B0011:12, go to  D15.

  13. D13 CHECK THE PASSENGER FRONTAL STAGE 2 DEPLOYMENT CONTROL RESISTANCE (DEPLOY - 06 - R) PID FOR AN INTERMITTENT LOW RESISTANCE OR OPEN CIRCUIT FAULT 
    • Enter the following diagnostic mode on the scan tool: DataLogger - RCM  .
      • DEPLOY - 06 - R PID
    • Attempt to recreate the fault by wiggling connectors (including any in-line connectors) and flexing the wire harness frequently.
    • Does the PID value read between 1.7 and 2.78 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  D16.
    • No:  DEPOWER the SRS  and REPAIR as necessary.

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematics, Connector Repair Procedures and connector information.

      Go to  D17.

  14. D14 CHECK THE PASSENGER FRONTAL STAGE 2 DEPLOYMENT CONTROL CIRCUITS FOR AN INTERMITTENT SHORT TO GROUND FAULT 
    • Attempt to recreate the fault by wiggling connectors (including any in-line connectors) and flexing the wire harness frequently.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Was DTC B0011:11 retrieved on-demand during self-test? 
    • Yes:  DEPOWER the SRS  and REPAIR as necessary.

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematics, Connector Repair Procedures and connector information.

      Go to  D17.

    • 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  D16.
  15. D15 CHECK THE PASSENGER FRONTAL STAGE 2 DEPLOYMENT CONTROL CIRCUITS FOR AN INTERMITTENT SHORT TO BATTERY FAULT 
    • Yes:  DEPOWER the SRS  and REPAIR as necessary.

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematics, Connector Repair Procedures and connector information.

      Go to  D17.

    • 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 D16  .
  16. D16 CHECK THE HARNESS AND CONNECTORS 
    • Ignition OFF.
    • Depower the SRS  . Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING  in this information.
    • Disconnect: Passenger Air Bag Module C256.
      • 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.
    • Inspect RCM  C310A and C310B CPA lever/lock for correct operation. Refer to RESTRAINTS CONTROL MODULE (RCM)  in this information.
    • Were any concerns found? 
    • Yes:  REPAIR as necessary.

      Refer to the appropriate SYSTEM WIRING DIAGRAMS article for schematics, Connector Repair Procedures and connector information.

      Go to D17  .

    • 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 D17  .
  17. D17 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  in this information.
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self Test - RCM  .
    • Were any RCM DTCs retrieved on-demand during self-test? 
    • Yes:  Do not clear any DTCs until all DTCs have been resolved. Go to the DTC CHARTS  in this information for pinpoint test direction.
    • No:  CLEAR all RCM CMDTCs  . PROVE OUT the SRS  . The repair is complete. RETURN the vehicle to the customer.
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