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Home >> Lincoln >> 2010 >> MKZ FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 307 (Supplemental Inflatable Restraint System) >> Diagnosis And Testing >> Pinpoint Tests - Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test K: DTC B2293 - Restraint System - Air Bag Fault >> Pinpoint Test K: DTC B2293 - Restraint System - Air Bag Fault

Pinpoint Test K: DTC B2293 - Restraint System - Air Bag Fault

WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the Pinpoint Test.
  1. K1 CHECK FOR ON-DEMAND AND CONTINUOUS DTCs 
    WARNING: Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards.
    WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
    WARNING: The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
    NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road  .
    NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
    • Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
    • Enter the following diagnostic mode on the scan tool: Flag DTC B2293/Record All Flagged Faults.
    • Enter the following diagnostic mode on the scan tool: Retrieve/Record/Flag Continuous DTCs.
    • Was DTC B2293 retrieved during the on-demand self test? 

    Yes  : This is a hard fault. The fault condition is still present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test. GO to K2

    No  : This is an intermittent fault. The fault condition is not present at this time. GO to  K38.

  2. K2 CHECK THE DRIVER AND PASSENGER AIR BAG MODULES 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • If the flagged fault was reported for the driver air bag module:
      • Remove the driver air bag module. Refer to DRIVER AIR BAG MODULE .
      • Connect restraint system diagnostic tools 418-F395 (2 required) to the driver air bag module squib 1 and squib 2 connectors.
      • NOTE: To remove the passenger air bag module jumper harness and connect the restraint system diagnostic tools, refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION .
    • If the flagged fault was reported for the passenger air bag module:
      • Remove the passenger air bag module. Refer to PASSENGER AIR BAG MODULE .
      • Remove the passenger air bag module jumper harness from the passenger air bag module.
      • Connect restraint system diagnostic tools 418-F395 (2 required) to the passenger air bag module jumper harness electrical connectors.
      • Connect the passenger air bag module jumper harness with restraint system diagnostic tools to passenger air bag module C256.
        Fig 1: Checking The Driver And Passenger Air Bag Modules
        G04586323Courtesy of FORD MOTOR CO.
    • Repower the system. Do not  prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
    • Was DTC B2293 retrieved during the on-demand self test? 

    Yes  : This is a hard fault. The fault condition is still present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test.

    Using the flagged faults recorded in the Step  K1, GO to the appropriate pinpoint test step.

    If a flagged fault of "?" was recorded, multiple faults exist and the entire pinpoint test must be carried out.

    For driver air bag module squib 1 with a short to ground fault (LFC 8-3), GO to K3.

    For driver air bag module squib 1 with a short to battery fault (LFC 8-7), GO to  K5.

    For driver air bag module squib 1 with an open circuit fault (LFC 1-9), GO to  K7.

    For driver air bag module squib 1 with a low resistance fault (LFC 8-11), GO to  K11.

    For passenger air bag module squib 1 with a short to ground fault (LFC 8-5), GO to  K14.

    For passenger air bag module squib 1 with a short to battery fault (LFC 8-9), GO to  K15.

    For passenger air bag module squib 1 with an open circuit fault (LFC 2-1), GO to  K16.

    For passenger air bag module squib 1 with a low resistance fault (LFC 8-13), GO to  K18.

    For driver air bag module squib 2 with a short to ground fault (LFC 8-4), GO to  K20.

    For driver air bag module squib 2 with a short to battery fault (LFC 8-8), GO to  K22.

    For driver air bag module squib 2 with an open circuit fault (LFC 8-1), GO to  K24.

    For driver air bag module squib 2 with a low resistance fault (LFC 8-12), GO to  K28.

    For passenger air bag module squib 2 with a short to ground fault (LFC 8-6), GO to  K31.

    For passenger air bag module squib 2 with a short to battery fault (LFC 8-10), GO to  K32.

    For passenger air bag module squib 2 with an open circuit fault (LFC 8-2), GO to  K33.

    For passenger air bag module squib 2 with a low resistance fault (LFC 8-14), GO to  K35.

    No  : If a fault was flagged against the driver air bag module in Step  K1, INSTALL a new driver air bag module. REFER to DRIVER AIR BAG MODULE . GO to  K39.

    If a fault was flagged against the passenger air bag module in Step  K1,

    INSTALL a new passenger air bag module. REFER to Passenger Air Bag Module. GO to  K39.

  3. K3 CHECK CIRCUIT 614 (GY/OG)/(RD/BK) AND CIRCUIT 615 (GY/WH)/(LG/OG) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: RCM C310a and C310b.
    • Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Measure the resistance between RCM C310a-1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a-2, circuit 615 (GY/WH), harness side and ground.
      Fig 2: Measuring Resistance Between RCM C310A-1, Circuit 614 And Ground; And Between RCM C310A-2, Circuit 615 And Ground
      G04586324Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to  K37.

    No  : GO to K4.

  4. K4 CHECK CIRCUIT 614 (GY/OG)/(RD/BK) AND CIRCUIT 615 (GY/WH)/(LG/OG) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE CLOCKSPRING 
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Measure the resistance between RCM C310a-1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a-2, circuit 615 (GY/WH), harness side and ground.
      Fig 3: Measuring Resistance Between RCM C310a Pin 1, Circuit 614 And Ground; And Between RCM C310a Pin 2, Circuit 615 And Ground
      G04586325Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new clockspring. REFER to Clockspring. GO to  K39.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 614 (GY/OG) or circuit 615 (GY/WH). GO to  K39.

  5. K5 CHECK CIRCUIT 614 (GY/OG)/(RD/BK) AND CIRCUIT 615 (GY/WH)/(LG/OG) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE SQUIB 1 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Repower the system. Do not  prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Key in ON position.
    • Measure the voltage between driver air module squib 1 electrical connector, circuit 614 (RD/BK), harness side and ground; and between driver air module squib 1 electrical connector, circuit 615 (LG/OG), harness side and ground.
      Fig 4: Checking Circuit 614 (GY/OG)/(RD/BK) And Circuit 615 (GY/WH)/(LG/OG) For A Short To Voltage Between The RCM And The Driver Air Bag Module Squib 1
      G04586326Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 

    Yes  : GO to  K37.

    No  : GO to K6.

  6. K6 CHECK CIRCUIT 614 (GY/OG)/(RD/BK) AND CIRCUIT 615 (GY/WH)/(LG/OG) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE CLOCKSPRING 
    • Key in OFF position.
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Key in ON position.
    • Measure the voltage between clockspring C218a-1, circuit 614 (GY/OG), harness side and ground; and between clockspring C218a-2, circuit 615 (GY/WH), harness side and ground.
      Fig 5: Checking Circuit 614 (GY/OG)/(RD/BK) And Circuit 615 (GY/WH)/(LG/OG) For A Short To Voltage Between The RCM And The Clockspring
      G04586327Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 

    Yes  : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to  K39.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 614 (GY/OG) or 615 (GY/WH). GO to  K39.

  7. K7 CHECK CIRCUIT 614 (GY/OG)/(RD/BK) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE SQUIB 1 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a-1, circuit 614 (RD/BK), harness side and driver air bag module squib 1 electrical connector pin 1, circuit 614 (GY/OG), harness side.
      Fig 6: Measuring Resistance Between RCM C310A-1, Circuit 614 And Driver Air Bag Module Squib 1 Electrical Connector Pin 1, Circuit 614
      G04586328Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to  K9.

    No  : GO to K8.

  8. K8 CHECK CIRCUIT 614 (GY/OG) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING 
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Measure the resistance between RCM C310a-1, circuit 614 (GY/OG), harness side and clockspring C218a-1, circuit 614 (GY/OG), harness side.
      Fig 7: Measuring Resistance Between RCM C310a Pin 1, Circuit 614 And Clockspring C218a Pin 1, Circuit 614
      G04586329Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to  K39.

    No  : REPAIR circuit 614 (GY/OG). GO to  K39.

  9. K9 CHECK CIRCUIT 615 (GY/WH)/(LG/OG) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE SQUIB 1 
    • Measure the resistance between RCM C310a-2, circuit 615 (GY/WH), harness side and driver air bag module squib 1 electrical connector, circuit 615 (LG/OG), harness side.
      Fig 8: Measuring Resistance Between RCM C310A-2, Circuit 615 And Driver Air Bag Module Squib 1 Electrical Connector, Circuit 615
      G04586330Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to  K37.

    No  : GO to K10.

  10. K10 CHECK CIRCUIT 615 (GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING 
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Measure the resistance between RCM C310a-2, circuit 615 (GY/WH), harness side and clockspring C218a-2, circuit 615 (GY/WH), harness side.
      Fig 9: Checking Circuit 615 (GY/WH) For An Open Between The RCM And The Clockspring
      G04586331Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : INSTALL a new clockspring. REFER to Clockspring. GO to  K39.

    No  : REPAIR circuit 615 (GY/WH). GO to  K39.

  11. K11 CHECK CIRCUIT 614 (GY/OG)/(RD/BK) AND CIRCUIT 615 (GY/WH)/(LG/OG) FOR LOW RESISTANCE BETWEEN THE DRIVER AIR BAG MODULE SQUIB 1 AND THE RCM  
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Measure the resistance between driver air bag module squib 1 electrical connector, circuit 614 (RD/BK), harness side and circuit 615 (LG/OG), harness side.
      Fig 10: Measuring Resistance Between Driver Air Bag Module Squib 1 Electrical Connector, Circuit 614 And Circuit 615
      G04586332Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to K12.

    No  : GO to  K37.

  12. K12 MEASURE THE RESISTANCE BETWEEN RCM PIN 1 AND PIN 2 
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a pin 1, component side and pin 2, component side.
      Fig 11: Measuring Resistance Between RCM C310A Pin 1 And Pin 2
      G04586333Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to  K37.

    No  : GO to K13.

  13. K13 CHECK CIRCUIT 614 (GY/OG)/(RD/BK) AND CIRCUIT 615 (GY/WH)/(LG/OG) FOR LOW RESISTANCE BETWEEN THE CLOCKSPRING AND THE RCM  
    • Connect: RCM C310a and C310b.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Disconnect: Clockspring C218a.
    • Measure the resistance between clockspring C218a-1, circuit 614 (GY/OG) harness side and C218a-2, circuit 615 (GY/WH), harness side.
      Fig 12: Measuring Resistance Between Clockspring C218a Pin 1, Circuit 614 And C218a Pin 2, Circuit 615
      G04586334Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : REPAIR circuit 614 (GY/OG) and circuit 615 (GY/WH). GO to  K39.

    No  : INSTALL a new clockspring. REFER to Clockspring. GO to  K39.

  14. K14 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 1 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a-3, circuit 607 (LB/OG), harness side and ground; and between RCM C310a-4, circuit 616 (PK/BK), harness side and ground.
      Fig 13: Measuring Resistance Between RCM C310a Pin 3, Circuit 607 And Ground; And Between RCM C310a Pin 4, Circuit 616 And Ground
      G04586335Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to  K37.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 607 (LB/OG) or 616 (PK/BK). GO to  K39.

  15. K15 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 1 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Repower the system. Do not  prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Key in ON position.
    • Measure the voltage between passenger air bag module squib 1 electrical connector, circuit 607 (LB/OG), harness side and ground; and between passenger air bag module squib 1 electrical connector, circuit 616 (PK/BK), harness side and ground.
      Fig 14: Checking Circuit 607 (LB/OG) And Circuit 616 (PK/BK) For A Short To Voltage Between RCM And Passenger Air Bag Module Squib 1
      G04586336Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 

    Yes  : GO to  K37.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 607 (LB/OG) or circuit 616 (PK/BK). GO to  K39.

  16. K16 CHECK CIRCUIT 607 (LB/OG) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 1 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a-3, circuit 607 (LB/OG), harness side and passenger air bag module squib 1 electrical connector, circuit 607 (LB/OG), harness side.
      Fig 15: Measuring Resistance Between RCM C310a Pin 3, Circuit 607 And Passenger Air Bag Module Squib 1 Electrical Connector, Circuit 607
      G04586337Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to K17.

    No  : REPAIR circuit 607 (LB/OG). GO to  K39.

  17. K17 CHECK CIRCUIT 616 (PK/BK) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 
    • Measure the resistance between RCM C310a-4, circuit 616 (PK/BK), harness side and passenger air bag module squib 1 electrical connector, circuit 616 (PK/BK), harness side.
      Fig 16: Measuring Resistance Between RCM C310a-4, Circuit 616 And Passenger Air Bag Module Squib 1 Electrical Connector, Circuit 616
      G04586338Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to  K37.

    No  : REPAIR circuit 616 (PK/BK). GO to  K39.

  18. K18 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR LOW RESISTANCE BETWEEN THE PASSENGER AIR BAG MODULE SQUIB 1 AND RCM  
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 1 Restraint System Diagnostic Tool.
    • Measure the resistance between passenger air bag module squib 1 electrical connector, circuit 607 (LB/OG), and circuit 616 (PK/BK), harness side.
      Fig 17: Measuring Resistance Between Passenger Air Bag Module Squib 1 Electrical Connector, Circuit 607 And Circuit 616
      G04586339Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to K19.

    No  : GO to  K37.

  19. K19 MEASURE THE RESISTANCE BETWEEN RCM PIN 3 AND PIN 4, CIRCUITS 607 (LB/OG) AND 616 (PK/BK) 
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a pin 3, component side and pin 4, component side.
      Fig 18: Measuring Resistance Between RCM C310a Pins 3 And 4
      G04586340Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to  K37.

    No  : REPAIR circuit 607 (LB/OG) and circuit 616 (PK/BK). GO to  K39.

  20. K20 CHECK CIRCUIT 1516 (YE/WH)/(GY/OG) AND CIRCUIT 1517 (RD/OG)/(GY/WH) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: RCM C310a and C310b.
    • Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
    • Measure the resistance between RCM C310a-5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a-6, circuit 1517 (RD/OG), harness side and ground.
      Fig 19: Measuring Resistance Between RCM C310a Pin 5, Circuit 1516 And Ground; And Between RCM C310a Pin 6, Circuit 1517 And Ground
      G04586341Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to  K37.

    No  : GO to K21.

  21. K21 CHECK CIRCUIT 1516 (YE/WH)/(GY/OG) AND CIRCUIT 1517 (RD/OG)/(GY/WH) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE CLOCKSPRING 
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Measure the resistance between RCM C310a-5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a-6, circuit 1517 (RD/OG), harness side and ground.
      Fig 20: Measuring Resistance Between RCM C310a Pin 5, Circuit 1516 And Ground; And Between RCM C310a Pin 6, Circuit 1517 And Ground
      G04586342Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to  K39.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 1516 (YE/WH) or 1517 (RD/OG). GO to  K39.

  22. K22 CHECK CIRCUIT 1516 (YE/WH)/(GY/OG) AND CIRCUIT 1517 (RD/OG)/(GY/WH) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE SQUIB 2 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Repower the system. Do not  prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Key in ON position.
    • Measure the voltage between driver air bag module squib 2 electrical connector, circuit 1516 (GY/OG), harness side and ground; and between driver air bag module squib 2, circuit 1517 (GY/WH), harness side and ground.
      Fig 21: Checking Circuit 1516 (YE/WH)/(GY/OG) And Circuit 1517 (RD/OG)/(GY/WH) For A Short To Voltage Between RCM And Driver Air Bag Module Squib 2
      G04586343Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 

    Yes  : GO to  K37.

    No  : GO to K23.

  23. K23 CHECK CIRCUIT 1516 (YE/WH)/(GY/OG) AND CIRCUIT 1517 (RD/OG)/(GY/WH) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE CLOCKSPRING 
    • Key in OFF position.
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Key in ON position.
    • Measure the voltage between clockspring C218a-7, circuit 1516 (YE/WH), harness side and ground; and between clockspring C218a-8, circuit 1517 (RD/OG), harness side and ground
      Fig 22: Measuring Voltage Between Clockspring C218A-7, Circuit 1516 And Ground; And Between Clockspring C218A-8, Circuit 1517 And Ground
      G04586344Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 

    Yes  : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to  K39.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 1516 (YE/WH) or 1517 (RD/OG). GO to  K39.

  24. K24 CHECK CIRCUIT 1516 (YE/WH)/(GY/OG) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE SQUIB 2 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a-5, circuit 1516 (GY/OG), harness side and driver air bag module squib 2 electrical connector, circuit 1516 (GY/OG), harness side.
      Fig 23: Measuring Resistance Between RCM C310a Pin 5, Circuit 1516 And Driver Air Bag Module Squib 2 Electrical Connector, Circuit 1516
      G04586345Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to  K26.

    No  : GO to K25.

  25. K25 CHECK CIRCUIT 1516 (YE/WH)/(GY/OG) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING 
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Measure the resistance between RCM C310a-5, circuit 1516 (YE/WH), harness side and clockspring C218a-7, circuit 1516 (YE/WH), harness side.
      Fig 24: Measuring Resistance Between RCM C310A Pin 5, Circuit 1516 And Clockspring C218a Pin 7, Circuit 1516
      G04586346Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to  K39.

    No  : REPAIR circuit 1516 (YE/WH). GO to  K39.

  26. K26 CHECK CIRCUIT 1517 (RD/OG)/(GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE SQUIB 2 
    • Measure the resistance between RCM C310a-6, circuit 1517 (RD/OG), harness side and driver air bag module squib 2 electrical connector, circuit 1517 (GY/WH), harness side.
      Fig 25: Measuring Resistance Between RCM C310a Pin 6, Circuit 1517 And Driver Air Bag Module Squib 2, Circuit 1517
      G04586347Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to  K37.

    No  : GO to K27.

  27. K27 CHECK CIRCUIT 1517 (RD/OG)/(GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING 
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Measure the resistance between RCM C310a-6, circuit 1517 (RD/OG), harness side and clockspring C218a-8, circuit 1517 (RD/OG), harness side.
      Fig 26: Measuring Resistance Between RCM C310a Pin 6, Circuit 1517 (RD/OG), Harness Side And Clockspring C218a Pin 8, Circuit 1517 (RD/OG), Harness Side
      G04586348Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to  K39.

    No  : REPAIR circuit 1517 (RD/OG). GO to  K39.

  28. K28 CHECK FOR LOW RESISTANCE ON CIRCUITS 1516 (YE/WH)/(GY/OG) AND 1517 (RD/OG)/(GY/WH) BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE SQUIB 2 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
    • Measure the resistance between driver air bag module squib 2 electrical connector, circuit 1516 (GY/OG), harness side and circuit 1517 (GY/WH), harness side.
      Fig 27: Measuring Resistance Between Driver Air Bag Module Squib 2, Circuit 1516 And Circuit 1517
      G04586349Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to K29.

    No  : GO to  K37.

  29. K29 MEASURE THE RESISTANCE BETWEEN RCM PIN 5 AND PIN 6 
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a pin 5, component side and pin 6, component side.
      Fig 28: Measuring Resistance Between RCM C310A Pin 5 And Pin 6
      G04586350Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to  K37.

    No  : GO to K30.

  30. K30 CHECK FOR LOW RESISTANCE ON CIRCUIT 1516 (YE/WH)/(GY/OG) AND CIRCUIT 1517 (RD/OG)/(GY/WH) BETWEEN THE DRIVER AIR BAG MODULE SQUIB 2 AND THE CLOCKSPRING 
    • Connect: RCM C310a and C310b.
    • Disconnect: Clockspring C218a.
      NOTE: Remove the steering column lower shroud to access clockspring C218a.
    • Measure the resistance between clockspring C218a-7, circuit 1516 (YE/WH), harness side and C218a-8, circuit 1517 (RD/OG), harness side.
      Fig 29: Measuring Resistance Between Clockspring C218a Pin 7, Circuit 1516 And Pin 8, Circuit 1517
      G04586351Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : REPAIR circuit 1516 (YE/WH) and circuit 1517 (RD/OG). GO to  K39.

    No  : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to  K39.

  31. K31 CHECK CIRCUIT 1518 (BK/WH) AND CIRCUIT 1519 (LG/RD) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 2 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 2 Restraint System Diagnostic Tool 418-F088.
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a-13, circuit 1518 (BK/WH), harness side and ground; and between RCM C310a-14, circuit 1519 (LG/RD), harness side and ground.
      Fig 30: Measuring Resistance Between RCM C310a Pin 13, Circuit 1518 And Ground; And Between RCM C310a Pin 14, Circuit 1519 And Ground
      G04586352Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 

    Yes  : GO to  K37.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 1518 (BK/WH) or circuit 1519 (LG/RD). GO to  K39.

  32. K32 CHECK CIRCUIT 1518 (BK/WH) AND CIRCUIT 1519 (LG/RD) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 2 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 2 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Repower the system. Do not  prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Key in ON position.
    • Measure the voltage between passenger air bag module squib 2 electrical connector, circuit 1518 (BK/WH), harness side and ground; and between passenger air bag module squib 2 electrical connector, circuit 1519 (LG/RD), harness side and ground.
      Fig 31: Checking Circuit 1518 (BK/WH) And Circuit 1519 (LG/RD) For A Short To Voltage Between RCM And Passenger Air Bag Module Squib 2
      G04586353Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 

    Yes  : GO to  K37.

    No  : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.

    REPAIR circuit 1518 (BK/WH) or circuit 1519 (LG/RD). GO to  K39.

  33. K33 CHECK CIRCUIT 1518 (BK/WH) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 2 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 2 Restraint System Diagnostic Tool.
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a-13, circuit 1518 (BK/WH), harness side and passenger air bag module squib 2 electrical connector, circuit 1518 (BK/WH), harness side.
      Fig 32: Measuring Resistance Between RCM C310A Pin 13, Circuit 1518 And Passenger Air Bag Module Squib 2 Electrical Connector, Circuit 1518
      G04586354Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to K34.

    No  : REPAIR circuit 1518 (BK/WH). GO to  K39.

  34. K34 CHECK CIRCUIT 1519 (LG/RD) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 2 
    • Measure the resistance between RCM C310a-14, circuit 1519 (LG/RD), harness side and passenger air bag module squib 2 electrical connector, circuit 1519 (LG/RD), harness side.
      Fig 33: Measuring Resistance Between RCM C310a Pin 14, Circuit 1519 (LG/RD), Harness Side And Passenger Air Bag Module Squib 2 Electrical Connector, Circuit 1519 (LG/RD), Harness Side
      G04586355Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 

    Yes  : GO to  K37.

    No  : REPAIR circuit 1519 (LG/RD). GO to  K39.

  35. K35 CHECK FOR LOW RESISTANCE ON CIRCUIT 1518 (BK/WH) AND CIRCUIT 1519 (LG/RD) BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE SQUIB 2 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Disconnect: Passenger Air Bag Module Squib 2 Restraint System Diagnostic Tool.
    • Measure the resistance between passenger air bag module squib 2 electrical connector, circuit 1518 (BK/WH), harness side and circuit 1519 (LG/RD), harness side.
      Fig 34: Measuring Resistance Between Passenger Air Bag Module Squib 2 Electrical Connector, Circuit 1518 (BK/WH), Harness Side And Circuit 1519 (LG/RD), Harness Side
      G04586356Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to K36.

    No  : GO to  K37.

  36. K36 MEASURE THE RESISTANCE BETWEEN THE RCM PIN 13 AND PIN 14 
    • Disconnect: RCM C310a and C310b.
    • Measure the resistance between RCM C310a pin 13, component side and pin 14, component side.
      Fig 35: Measuring Resistance Between RCM C310A Pin 13 And Pin 14
      G04586357Courtesy of FORD MOTOR CO.
    • Is the resistance less than 800 ohms? 

    Yes  : GO to K37.

    No  : REPAIR circuit 1518 (BK/WH) and circuit 1519 (LG/RD). GO to  K39.

  37. K37 CONFIRM THE RCM FAULT 
    NOTE: Make sure all restraint system diagnostic tools, sensor electrical connectors and the RCM electrical connectors are connected before carrying out the on-demand self test. If not, erroneous DTCs will be recorded.

    Yes  : If a flagged fault of "?" was recorded, multiple faults exist and the entire pinpoint test must be carried out.

    INSTALL a new RCM . REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to  K39.

    No  : CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. GO to  K39.

  38. K38 CHECK FOR AN INTERMITTENT FAULT 
    • Key in OFF position.
    • Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • If the flagged fault was reported for the driver air bag module:
      • Remove the driver air bag module. Refer to DRIVER AIR BAG MODULE .
      • Connect restraint system diagnostic tools 418-F395 (2 required) to the driver air bag module squib 1 and squib 2 connectors.
      • NOTE: To remove the passenger air bag module jumper harness and connect the restraint system diagnostic tools, refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION .
    • If the flagged fault was reported for the passenger air bag module:
      • Remove the passenger air bag module. Refer to PASSENGER AIR BAG MODULE .
      • Remove the passenger air bag module jumper harness from the passenger air bag module.
      • Connect restraint system diagnostic tools 418-F395 (2 required) to the passenger air bag module jumper harness electrical connectors.
      • Connect the passenger air bag module jumper harness with restraint system diagnostic tools to passenger air bag module C256.
        Fig 36: Connecting Passenger Air Bag Module Jumper Harness With Restraint System Diagnostic Tools To Passenger Air Bag Module C256
        G04586358Courtesy of FORD MOTOR CO.
    • Repower the system. Do not  prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
    • Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
    • Enter the following diagnostic mode on the scan tool: Flag DTC B2293/Record All Flagged Faults.
    • Was the DTC B2293 retrieved during the on-demand self test? 

    Yes  : This is a hard fault. The fault condition is now present. This fault cannot be cleared until it is corrected and the DTC is no longer retrieved during the on-demand self test. CHECK for causes of the intermittent fault at or near the affected air bag module connector. REPAIR any intermittent concerns found.

    If an intermittent concern was  found and repaired, GO to K39.

    If an intermittent concern was not  found and repaired, USE the flagged faults recorded and GO to the appropriate pinpoint test step.

    If a flagged fault of "?" was recorded, multiple faults exist and the entire pinpoint test must be carried out.

    For driver air bag module squib 1 with a short to ground fault (LFC 8-3), GO to  K3.

    For driver air bag module squib 1 with a short to battery fault (LFC 8-7), GO to  K5.

    For driver air bag module squib 1 with an open circuit fault (LFC 1-9), GO to  K7.

    For driver air bag module squib 1 with a low resistance fault (LFC 8-11), GO to  K11.

    For passenger air bag module squib 1 with a short to ground fault (LFC 8-5), GO to  K14.

    For passenger air bag module squib 1 with a short to battery fault (LFC 8-9), GO to  K15.

    For passenger air bag module squib 1 with an open circuit fault (LFC 2-1), GO to  K16.

    For passenger air bag module squib 1 with a low resistance fault (LFC 8-13), GO to  K18.

    For driver air bag module squib 2 with a short to ground fault (LFC 8-4), GO to  K20.

    For driver air bag module squib 2 with a short to battery fault (LFC 8-8), GO to  K22.

    For driver air bag module squib 2 with an open circuit fault (LFC 8-1), GO to  K24.

    For driver air bag module squib 2 with a low resistance fault (LFC 8-12), GO to  K28.

    For passenger air bag module squib 2 with a short to ground fault (LFC 8-6), GO to  K31.

    For passenger air bag module squib 2 with a short to battery fault (LFC 8-10), GO to  K32.

    For passenger air bag module squib 2 with an open circuit fault (LFC 8-2), GO to  K33.

    For passenger air bag module squib 2 with a low resistance fault (LFC 8-14), GO to  K35.

    No  : CHECK for causes of the intermittent fault. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. ACTIVATE other systems in the same wire harness. REPAIR any intermittent concerns found. GO to K39.

  39. K39 FOR ADDITIONAL DTCs 
    • Refer to the continuous DTCs recorded during Step  K1.
    • Were any continuous DTCs retrieved during Step   K1 ? 

    Yes  : Do not clear any DTCs until all DTCs have been resolved. GO to the RESTRAINTS CONTROL MODULE (RCM) DIAGNOSTIC TROUBLE CODE (DTC) TABLE  in this article for pinpoint test direction.

    No  : RECONNECT the system. If previously directed to deactivate the system, REACTIVATE the system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION . REPOWER the system. REFER to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING . PROVE OUT the system. CLEAR all DTCs.

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