Pinpoint Test H: LFC 19 And 21/DTC B2293 - Restraint System - Air Bag Fault

WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. 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.

H1 CHECK FOR A HARD OR INTERMITTENT DTC
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: 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 these instructions may result in the inadvertent deployment of the safety canopy and risk of personal injury.

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.

WARNING: Never probe the electrical connector on a safety canopy module. Doing so can result in safety canopy deployment.

NOTE: After diagnosing or repairing a supplemental restraint system (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 diagnostic tool: Retrieve/Flag Continuous DTCs.
- Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test.
- Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2293.
- 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 H2.
- No : This is an intermittent fault. The fault condition is not present at this time. GO to H38.
H2 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 the restraint system diagnostic tools 418-F395 (2 required) to the driver air bag module squib 1 and squib 2 connectors.
- If the flagged fault was reported for the passenger air bag module:
  - Disconnect the passenger air bag module C256.
  - Connect the restraint system diagnostic tool 418-F403 to the passenger air bag module C256.
- 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 diagnostic tool: Flag DTC B2293.
- Enter the following diagnostic mode on the diagnostic 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 H1, 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 (D_ABAG) with a short to ground (STG) fault, GO to H3.
  
  For driver air bag module squib 1 (D_ABAG) with a short to battery (STB) fault, GO to H5.
  
  For driver air bag module squib 1 (D_ABAG) with an open circuit (O_CIR) fault, GO to H7.
  
  For driver air bag module squib 1 (D_ABAG) with a low resistance (LOWRES) fault, GO to H11.
  
  For passenger air bag module squib 1 (P_ABAG) with a short to ground (STG) fault, GO to H14.
  
  For passenger air bag module squib 1 (P_ABAG) with a short to battery (STB) fault, GO to H15.
  
  For passenger air bag module squib 1 (P_ABAG) with an open circuit (O_CIR) fault, GO to H16.
  
  For passenger air bag module squib 1 (P_ABAG) with a low resistance (LOWRES) fault, GO to H18.
  
  For driver air bag module squib 2 (D_ABAG2) with a short to ground (STG) fault, GO to H20.
  
  For driver air bag module squib 2 (D_ABAG2) with a short to battery (STB) fault, GO to H22.
  
  For driver air bag module squib 2 (D_ABAG2) with an open circuit (O_CIR) fault, GO to H24.
  
  For driver air bag module squib 2 (D_ABAG2) with a low resistance (LOWRES) fault, GO to H28.
  
  For passenger air bag module squib 2 (P_ABAG2) with a short to ground (STG) fault, GO to H31.
  
  For passenger air bag module squib 2 (P_ABAG2) with a short to battery (STB) fault, GO to H32.
  
  For passenger air bag module squib 2 (P_ABAG2) with an open circuit (O_CIR) fault, GO to H33.
  
  For passenger air bag module squib 2 (P_ABAG2) with a low resistance (LOWRES) fault, GO to H35.
- No : If a flagged fault of "?" was recorded in Step H1, multiple faults exist and the entire pinpoint test must be carried out.
  If a fault was flagged against driver air bag module in Step H1, INSTALL a new driver air bag module. Refer to DRIVER AIR BAG MODULE . GO to H39.
  
  If a fault was flagged against passenger air bag module in Step H1, INSTALL a new passenger air bag module. REFER to PASSENGER AIR BAG MODULE . GO to H39.
H3 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (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.
- Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a pin 2, circuit 615 (GY/WH), harness side and ground.
  
  Fig 1: Measuring Resistance Between RCM Connector Terminals And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 1,000,000 ohms?
- Yes : GO to H37.
- No : GO to H4.
H4 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218b.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a pin 2, circuit 615 (GY/WH), harness side and ground.
  
  Fig 2: Measuring Resistance Between RCM Connector Terminals And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 1,000,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- 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 H39.
H5 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Deactivate the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION .
- Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Key in ON position.
- Measure the voltage between RCM C310a pin 1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a pin 2, circuit 615 (GY/WH), harness side and ground.
  
  Fig 3: Measuring Voltage Between RCM Connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the voltages less than 0.2 volt?
- Yes : GO to H37.
- No : GO to H6.
H6 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE CLOCKSPRING
- Key in OFF position.
- Disconnect: Clockspring C218b.
- Key in ON position.
- Measure the voltage between RCM C310a pin 1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a pin 2, circuit 615 (GY/WH), harness side and ground.
  
  Fig 4: Measuring Voltage Between RCM Connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the voltages less than 0.2 volt?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- 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 H39.
H7 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR AN OPEN 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: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and driver air bag module, circuit 614 (GY/OG), harness side.
  
  Fig 5: Measuring Resistance Between RCM C310a Pin 1 Harness Side And Driver Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H9.
- No : GO to H8.
H8 CHECK CIRCUIT 614 (GY/OG) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218b.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and clockspring C218b pin 4, circuit 614 (GY/OG), harness side.
  
  Fig 6: Checking Circuit 614 (GY/OG) For An Open Between The RCM And The Clockspring
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- No : REPAIR circuit 614 (GY/OG). GO to H39.
H9 CHECK CIRCUIT 615 (GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 2, circuit 615 (GY/WH), harness side and driver air bag module, circuit 615 (GY/WH), harness side.
  
  Fig 7: Measuring Resistance Between RCM C310a Pin 2 Harness Side And Driver Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H37.
- No : GO to H10.
H10 CHECK CIRCUIT 615 (GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218b.
- Measure the resistance between RCM C310a pin 2, circuit 615 (GY/WH), harness side and clockspring C218b pin 3, circuit 615 (GY/WH), harness side.
  
  Fig 8: Measuring Resistance Between RCM C310a Pin 2 Harness Side
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- No : REPAIR circuit 615 (GY/WH). GO to H39.
H11 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR LOW RESISTANCE BETWEEN THE DRIVER AIR BAG MODULE 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, circuit 614 (GY/OG) and circuit 615 (GY/WH), harness side.
  
  Fig 9: Measuring Resistance Between Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to H37.
- No : GO to H12.
H12 MEASURE THE RESISTANCE BETWEEN RCM CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH)
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), and pin 2, circuit 615 (GY/WH), component side.
  
  Fig 10: Measuring Resistance Between RCM Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to H13.
- No : GO to H37.
H13 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR LOW RESISTANCE BETWEEN THE CLOCKSPRING AND THE RCM
- Connect: RCM C310a.
- Disconnect: Clockspring C218b.
- Measure the resistance between clockspring C218b pin 4, circuit 614 (GY/OG) and pin 3, circuit 615 (GY/WH), harness side.
  
  Fig 11: Measuring Resistance Between Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- No : REPAIR circuit 614 (GY/OG) and circuit 615 (GY/WH). GO to H39.
H14 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 3, circuit 607 (LB/OG), harness side and ground; and between RCM C310a pin 4, circuit 616 (PK/BK), harness side and ground.
  
  Fig 12: Measuring Resistance Between RCM connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 1,000,000 ohms?
- Yes : GO to H37.
- 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 H39.
H15 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR A SHORT TO BATTERY BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Deactivate the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Key in ON position.
- Measure the voltage between RCM C310a pin 3, circuit 607 (LB/OG), harness side and ground; and between RCM C310a pin 4, circuit 616 (PK/BK), harness side and ground.
  
  Fig 13: Measuring Voltage Between RCM C310a Pin 3 Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Are the voltages less than 0.2 volt?
- Yes : GO to H37.
- 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 H39.
H16 CHECK CIRCUIT 607 (LB/OG) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 3, circuit 607 (LB/OG), harness side and passenger air bag module C2101 pin 3, circuit 607 (LB/OG), harness side.
  
  Fig 14: Checking Circuit 607 (LB/OG) For An Open Between The RCM And The Passenger Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H17.
- No : REPAIR circuit 607 (LB/OG). GO to H39.
H17 CHECK CIRCUIT 616 (PK/BK) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 4, circuit 616 (PK/BK), harness side and passenger air bag module C2101 pin 4, circuit 616 (PK/BK), harness side.
  
  Fig 15: Measuring Resistance Between RCM C310a Pin 4 Harness Side And Passenger Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H37.
- No : REPAIR circuit 616 (PK/BK). GO to H39.
H18 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR LOW RESISTANCE BETWEEN THE PASSENGER AIR BAG MODULE AND THE RCM
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Measure the resistance between passenger air bag module C2101 pin 3, circuit 607 (LB/OG), and pin 2, circuit 616 (PK/BK), harness side.
  
  Fig 16: Measuring Resistance Between Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to H37.
- No : GO to H19.
H19 MEASURE THE RESISTANCE BETWEEN RCM CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK)
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 3, circuit 607 (LB/OG), and pin 4, circuit 616 (PK/BK), component side.
  
  Fig 17: Measuring Resistance Between RCM Pins 3 And 4
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : REPAIR circuit 607 (LB/OG) and circuit 616 (PK/BK). GO to H22.
- No : GO to H37.
H20 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/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.
- Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and ground.
  
  Fig 18: Measuring Resistance Between RCM connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 1,000,000 ohms?
- Yes : GO to H37.
- No : GO to H21.
H21 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218b.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and ground.
  
  Fig 19: Measuring Resistance Between RCM connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 1,000,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- 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 circuit 1517 (RD/OG). GO to H39.
H22 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Deactivate the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION .
- Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Key in ON position.
- Measure the voltage between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and ground.
  
  Fig 20: Measuring Voltage Between RCM Connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the voltages less than 0.2 volt?
- Yes : GO to H37.
- No : GO to H23.
H23 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE CLOCKSPRING
- Key in OFF position.
- Disconnect: Clockspring C218b.
- Key in ON position.
- Measure the voltage between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and ground.
  
  Fig 21: Measuring Voltage Between RCM Connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the voltages less than 0.2 volt?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- 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 circuit 1517 (RD/OG). GO to H39.
H24 CHECK CIRCUIT 1516 (YE/WH) FOR AN OPEN 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: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and the driver air bag module squib 2, circuit 1516 (YE/WH), harness side.
  
  Fig 22: Checking Circuit 1516 (YE/WH) For An Open Between The RCM And The Driver Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H26.
- No : GO to H25.
H25 CHECK CIRCUIT 1516 (YE/WH) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218a.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and clockspring C218a pin 2, circuit 1516 (YE/WH), harness side.
  
  Fig 23: Measuring Resistance Between RCM C310a Pin 5 Harness Side And Pin 2
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- No : REPAIR circuit 1516 (YE/WH). GO to H39.
H26 CHECK CIRCUIT 1517 (RD/OG) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and driver air bag module squib 2, circuit 1517 (RD/OG), harness side.
  
  Fig 24: Measuring Resistance Between RCM C310a Pin 6 Harness Side And Driver Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H37.
- No : GO to H27.
H27 CHECK CIRCUIT 1517 (RD/OG) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218b.
- Measure the resistance between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and clockspring C218b pin 1, circuit 1517 (RD/OG), harness side.
  
  Fig 25: Measuring Resistance Between RCM C310a Pin 6 Harness Side And Pin 1
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- No : REPAIR circuit 1517 (RD/OG). GO to H39.
H28 CHECK FOR LOW RESISTANCE ON CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) 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: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Measure the resistance between driver air bag module squib 2, circuit 1516 (YE/WH), harness side and circuit 1517 (RD/OG), harness side.
  
  Fig 26: Measuring Resistance Across Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to H37.
- No : GO to H29.
H29 MEASURE THE RESISTANCE BETWEEN RCM CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG)
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), component side and pin 6, circuit 1517 (RD/OG), component side.
  
  Fig 27: Measuring Resistance Between RCM Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to H30.
- No : GO to H37.
H30 CHECK FOR LOW RESISTANCE ON CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) BETWEEN THE DRIVER AIR BAG MODULE AND THE CLOCKSPRING
- Connect: RCM C310a.
- Disconnect: Clockspring C218b.
- Measure the resistance between clockspring C218b pin 2, circuit 1516 (YE/WH), harness side and pin 1, circuit 1517 (RD/OG), harness side.
  
  Fig 28: Measuring Resistance Between Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to H39.
- No : REPAIR circuit 1516 (YE/WH) and circuit 1517 (RD/OG). GO to H39.
H31 CHECK CIRCUIT 1518 (RD/WH) AND CIRCUIT 1519 (LG/RD) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 13, circuit 1518 (RD/WH), harness side and ground; and between RCM C310a pin 14, circuit 1519 (LG/RD), harness side and ground.
  
  Fig 29: Measuring Resistance Between RCM Connector And Ground
  Courtesy of FORD MOTOR CO.
- Are the resistances greater than 1,000,000 ohms?
- Yes : GO to H37.
- No : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. REPAIR circuit 1518 (RD/WH) or circuit 1519 (LG/RD). GO to H39.
H32 CHECK CIRCUIT 1518 (RD/WH) AND CIRCUIT 1519 (LG/RD) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Deactivate the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Key in ON position.
- Measure the voltage between RCM C310a pin 13, circuit 1518 (RD/WH), harness side and ground; and between RCM C310a pin 14, circuit 1519 (LG/RD), harness side and ground.
  
  Fig 30: Measuring Voltage Between RCM C310a Pin 13 Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Are the voltages less than 0.2 volt?
- Yes : GO to H37.
- No : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. REPAIR circuit 1518 (RD/WH) or circuit 1519 (LG/RD). GO to H39.
H33 CHECK CIRCUIT 1518 (RD/WH) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 13, circuit 1518 (RD/WH), harness side and passenger air bag module C2101 pin 1, circuit 1518 (RD/WH), harness side.
  
  Fig 31: Measuring Resistance Between RCM C310a Pin 13 Harness Side And Passenger Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H34.
- No : REPAIR circuit 1518 (RD/WH). GO to H39.
H34 CHECK CIRCUIT 1519 (LG/RD) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 14, circuit 1519 (LG/RD), harness side and passenger air bag module C2101 pin 2, circuit 1519 (LG/RD), harness side.
  
  Fig 32: Checking Circuit 1519 (LG/RD) For An Open Between The RCM And The Passenger Air Bag Module
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to H37.
- No : REPAIR circuit 1519 (LG/RD). GO to H39.
H35 CHECK FOR LOW RESISTANCE ON CIRCUIT 1518 (RD/WH) AND CIRCUIT 1519 (LG/RD) BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Restraint System Diagnostic Tool.
- Measure the resistance between passenger air bag module C2101 pin 1, circuit 1518 (RD/WH), harness side and pin 2, circuit 1519 (LG/RD), harness side.
  
  Fig 33: Measuring Resistance Between Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to H37.
- No : GO to H36.
H36 MEASURE THE RESISTANCE BETWEEN RCM CIRCUIT 1518 (RD/WH) AND CIRCUIT 1519 (LG/RD)
- Disconnect: RCM C310a.
- Measure the resistance between RCM C310a pin 13, circuit 1518 (RD/WH), component side and pin 14, circuit 1519 (LG/RD), component side.
  
  Fig 34: Measuring Resistance Between RCM Connector Terminals
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
- Yes : REPAIR circuit 1518 (RD/WH) and circuit 1519 (LG/RD). GO to H39.
- No : GO to H37.
H37 CONFIRM THE RCM FAULT
NOTE: Make sure all restraint system diagnostic tools, sensor electrical connectors and the RCM electrical connector are connected before carrying out the on-demand self-test. If not, erroneous DTCs will be recorded
- Key in OFF position.
- Connect: Restraint System Diagnostic Tools.
- Connect: RCM C310a.
- 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 diagnostic tool: On-Demand Self Test.
- Was DTC B2293 retrieved during the on-demand self test?
- Yes : If a "?" was flagged by the scan tool, CARRY OUT the entire pinpoint test. INSTALL a new RCM. REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to H39.
- 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. REPAIR any intermittent concerns found. GO to H39.
H38 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.
- If the flagged fault was reported for the passenger air bag module:
  - Disconnect the passenger air bag module C256.
  - Connect restraint system diagnostic tool 418-F403 to passenger air bag module C256.
- 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 diagnostic tool: On-Demand Self Test.
- Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2293.
- Was the DTC B2293 retrieved during the on-demand self test?
- Yes : 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 H39.
  
  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 in Step H1, multiple faults exist and the entire pinpoint test must be carried out.
  
  For driver air bag module squib 1 (D_ABAG) with a short to ground (STG) fault, GO to H3.
  
  For driver air bag module squib 1 (D_ABAG) with a short to battery (STB) fault, GO to H5.
  
  For driver air bag module squib 1 (D_ABAG) with an open circuit (O_CIR) fault, GO to H7.
  
  For driver air bag module squib 1 (D_ABAG) with a low resistance (LOWRES) fault, GO to H11.
  
  For passenger air bag module squib 1 (P_ABAG) with a short to ground (STG) fault, GO to H14.
  
  For passenger air bag module squib 1 (P_ABAG) with a short to battery (STB) fault, GO to H15.
  
  For passenger air bag module squib 1 (P_ABAG) with an open circuit (O_CIR) fault, GO to H16.
  
  For passenger air bag module squib 1 (P_ABAG) with a low resistance (LOWRES) fault, GO to H18.
  
  For driver air bag module squib 2 (D_ABAG2) with a short to ground (STG) fault, GO to H20.
  
  For driver air bag module squib 2 (D_ABAG2) with a short to battery (STB) fault, GO to H22.
  
  For driver air bag module squib 2 (D_ABAG2) with an open circuit (O_CIR) fault, GO to H24.
  
  For driver air bag module squib 2 (D_ABAG2) with a low resistance (LOWRES) fault, GO to H28.
  
  For passenger air bag module squib 2 (P_ABAG2) with a short to ground (STG) fault, GO to H31.
  
  For passenger air bag module squib 2 (P_ABAG2) with a short to battery (STB) fault, GO to H32.
  
  For passenger air bag module squib 2 (P_ABAG2) with an open circuit (O_CIR) fault, GO to H33.
  
  For passenger air bag module squib 2 (P_ABAG2) with a low resistance (LOWRES) fault, GO to H35.
- 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. REPAIR any intermittent concerns found. GO to H39.
H39 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous DTCs recorded during Step H1.
- Were any continuous DTCs retrieved during Step H1?
- Yes : Do not clear any DTCs until all DTCs have been resolved. GO to the RESTRAINTS CONTROL MODULE (RCM) DIAGNOSTIC TROUBLE CODE (DTC) TABLE 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.