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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1401 (Supplemental Restraint System) >> Diagnosis And Testing >> Air Bag And Safety Belt PRETENSIONER Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test E: DTC B2292 - Restraint System - Seatbelt Pretensioner Fault >> Pinpoint Test E: DTC B2292 - Restraint System - SEATBELT PRETENSIONER Fault

Pinpoint Test E: DTC B2292 - Restraint System - SEATBELT PRETENSIONER Fault

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Never probe the electrical connectors on safety belt buckle/retractor pretensioners or adaptive load limiting retractors. Failure to follow this instruction may result in the accidental deployment of the safety belt pretensioners or adaptive load limiting retractors, which increases the risk of 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 making 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: Supplemental restraint system (SRS) components should only be disconnected or reconnected when instructed to do so within a pinpoint test step. Failure to follow this instruction may result in incorrect diagnosis of the SRS. 
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
  1. E1 CHECK FOR CONTINUOUS AND ON-DEMAND DTCs 
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record All B2292 Fault PIDs
      • Refer to PID list in Normal Operation to view B2292 fault PIDs.
    • Do any RCM on-demand DTC B2292 fault PIDs indicate a fault? 
    1. 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 fault PIDs recorded, go to the appropriate pinpoint test step.

      For 2292_31_OD (Pretensioner Circuit Resistance Low, Front Driver Side), go to  E2.

      For 2292_30_OD (Pretensioner Circuit Open, Front Driver Side), go to  E2.

      For 2292_28_OD (Pretensioner Circuit Short to Ground, Front Driver Side), go to  E9.

      For 2292_29_OD (Pretensioner Circuit Short to Battery, Front Driver Side), go to  E11.

    2. For 2292_27_OD (Pretensioner Circuit Resistance Low, Front Passenger Side), go to  E12.

      For 2292_26_OD (Pretensioner Circuit Open, Front Passenger Side), go to  E12.

      For 2292_24_OD (Pretensioner Circuit Short to Ground, Front Passenger Side), go to  E19.

      For 2292_25_OD (Pretensioner Circuit Short to Battery, Front Passenger Side), go to  E21.

    3. NO  : This is an intermittent fault when present as a continuous memory DTC only (DTC not retrieved on demand). The fault condition is not present at this time.

      Using the fault PIDs recorded, go to the appropriate pinpoint test step.

      For 2292_31_CM (Pretensioner Circuit Resistance Low, Front Driver Side), 2292_27_CM (Pretensioner Circuit Resistance Low, Front Passenger Side), 2292_30_CM (Pretensioner Circuit Open, Front Driver Side) and 2292_26_CM (Pretensioner Circuit Open, Front Passenger Side), go to  E24.

      For 2292_28_CM (Pretensioner Circuit Short to Ground, Front Driver Side) and 2292_24_CM (Pretensioner Circuit Short to Ground, Front Passenger Side), go to  E26.

      For 2292_29_CM (Pretensioner Circuit Short to Battery, Front Driver Side) and 2292_25_CM (Pretensioner Circuit Short to Battery, Front Passenger Side), go to  E27.

  2. E2 CHECK THE DRIVER SAFETY BELT PRETENSIONER RESISTANCE PID (DR_PTENS) 
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - PID
    • Enter the following diagnostic mode on the diagnostic tool: DR_PTENS (Pretensioner Circuit Resistance, Driver side) Resistance PID
    • Does the resistance PID value read between 1.31 and 4.29 ohms? 
    1. YES  : Go to  E23.
    2. NO  : Go to  E3.
  3. E3 CHECK THE DRIVER SAFETY BELT RETRACTOR PRETENSIONER RESISTANCE PID (DR_PTENS) WHILE CARRYING OUT A HARNESS TEST 
    • Continue monitoring the DR_PTENS (Pretensioner Circuit Resistance, Driver side) resistance PID while carrying out a harness test of the driver safety belt retractor pretensioner circuits and accessible connectors (including any inline connectors), by wiggling connectors and flexing the wire harness.
    • Does the resistance PID value read between 1.31 and 4.29 ohms while carrying out a harness test? 
    1. YES  : DEPOWER the SRS and REPAIR the connector, terminals or wire harness as needed. Refer to SYSTEM WIRING DIAGRAMS , Connector Repair Procedures for schematic and connector information. Go to  E28.
    2. NO  : If the driver safety belt retractor pretensioner resistance PID is less than 1.31 ohms, go to  E4.

      If the driver safety belt retractor pretensioner resistance PID is greater than 4.29 ohms, go to  E6.

  4. E4 CHECK DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUIT FAULT PIDs (2292_31_OD) AND (2292_30_OD) FOR LOW RESISTANCE AND OPEN  
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Safety Belt Retractor Pretensioner C323
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record The Following Fault PIDs
      • 2292_30_OD (Pretensioner Circuit Open, Front Driver Side)
      • 2292_31_OD (Pretensioner Circuit Resistance Low, Front Driver Side)
    • DIAGNOSTIC TIP:  When viewing DTC B2292 on-demand fault PIDs with the driver pretensioner disconnected, an open circuit fault would normally be retrieved.
    • Did the driver safety belt retractor pretensioner on-demand fault PIDs change from indicating a low resistance to an open circuit fault? 
    1. YES  : Go to  E22.
    2. NO  : Go to  E5.
  5. E5 CHECK FOR A SHORT BETWEEN DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUITS CR120 (BU/OG) AND RR120 (BN/GN) 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
      • Fig 1: Checking For A Short Between Driver Safety Belt Retractor Pretensioner Circuits CR120 (BU/OG) & RR120 (BN/GN)
      G04675893Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver safety belt retractor pretensioner C323-1, circuit CR120 (BU/OG), harness side and C323-2, circuit RR120 (BN/GN), harness side.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  E23.
    2. NO  : REPAIR circuits CR120 (BU/OG) and RR120 (BN/GN). Go to  E28.
  6. E6 CHECK THE DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUIT FAULT PIDs (2292_30_OD) AND (2292_31_OD) FOR AN OPEN AND LOW RESISTANCE 
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Safety Belt Retractor Pretensioner C323
    • Connect a jumper wire between driver safety belt pretensioner C3201-1, circuit CR120 (BU/OG), harness side and C3201-2, circuit RR120 (BN/GN), harness side.
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record The Following Fault PIDs
      • 2292_30_OD (Pretensioner Circuit Open, Front Driver Side)
      • 2292_31_OD (Pretensioner Circuit Resistance Low, Front Driver Side)
    • DIAGNOSTIC TIP:  When viewing DTC B2292 on-demand fault PIDs with the driver pretensioner circuits shorted together, a low resistance fault would normally be retrieved.
    • Did the driver safety belt retractor pretensioner on-demand fault PIDs change from indicating an open circuit to a low resistance fault? 
    1. YES  : Go to  E22.
    2. NO  : Go to  E7.
  7. E7 CHECK CIRCUIT CR120 (BU/OG) FOR AN OPEN 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Remove the jumper wire from the driver safety belt retractor pretensioner C323.
    • Disconnect: RCM C310a and C310b
      • Fig 2: Checking Circuit CR120 (BU/OG) For An Open
      GF0021826Courtesy of FORD MOTOR CO.
    • Measure the resistance between RCM C310b-31, circuit CR120 (BU/OG), harness side and driver safety belt retractor pretensioner C323-1, circuit CR120 (BU/OG), harness side.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  E8.
    2. NO  : REPAIR circuit CR120 (BU/OG). Go to  E28.
  8. E8 CHECK CIRCUIT RR120 (BN/GN) FOR AN OPEN 
      Fig 3: Checking Circuit RR120 (BN/GN) For An Open
      GF0021827Courtesy of FORD MOTOR CO.
    • Measure the resistance between RCM C310b-32, circuit RR120 (BN/GN), harness side and driver safety belt retractor pretensioner C323-2, circuit RR120 (BN/GN), harness side.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  E23.
    2. NO  : REPAIR circuit RR120 (BN/GN). Go to  E28.
  9. E9 CHECK THE DRIVER SAFETY BELT RETRACTOR PRETENSIONER CIRCUIT FAULT PIDs (2292_28_OD) AND (2292_30_OD) FOR A SHORT TO GROUND AND OPEN 
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Safety Belt Retractor Pretensioner C323
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record The Following Fault PIDs
      • 2292_28_OD (Pretensioner Circuit Short to Ground, Front Driver Side)
      • 2292_30_OD (Pretensioner Circuit Open, Front Driver Side)
    • DIAGNOSTIC TIP:  When viewing DTC B2292 on-demand fault PIDs with the driver pretensioner disconnected, an open circuit fault would normally be retrieved.
    • Did the driver safety belt retractor pretensioner on-demand fault PIDs change from indicating a short to ground to an open circuit fault? 
    1. YES  : Go to  E22.
    2. NO  : Go to  E10.
  10. E10 CHECK CIRCUITS CR120 (BU/OG) AND RR120 (BN/GN) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
      • Fig 4: Checking Circuits CR120 (BU/OG) & RR120 (BN/GN) For A Short To Ground
      GF0013417Courtesy of FORD MOTOR CO.
    • Measure the resistance between driver safety belt retractor pretensioner C323-1, circuit CR120 (BU/OG), harness side and ground; and between driver safety belt retractor pretensioner C323-2, circuit RR120 (BN/GN), harness side and ground.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  E23.
    2. NO  : REPAIR circuit CR120 (BU/OG) or circuit RR120 (BN/GN). Go to  E28.
  11. E11 CHECK CIRCUITS CR120 (BU/OG) AND RR120 (BN/GN) FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Driver Side Air Bag Module C328
    • Disconnect: Driver Safety Belt Retractor Pretensioner C323
    • Disconnect: RCM C310a and C310b
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
      • Fig 5: Checking Circuits CR120 (BU/OG) & RR120 (BN/GN) For A Short To Voltage
      GF0026610Courtesy of FORD MOTOR CO.
    • Measure the voltage between:
      • driver safety belt retractor pretensioner C323-1, circuit CR120 (BU/OG), harness side and ground.
      • driver safety belt retractor pretensioner C323-2, circuit RR120 (BN/GN), harness side and ground.
    • Is any voltage present on either circuit? 
    1. YES  : REPAIR circuit CR120 (BU/OG) or circuit RR120 (BN/GN). Go to  E28.
    2. NO  : Go to  E23.
  12. E12 CHECK THE PASSENGER SAFETY BELT PRETENSIONER RESISTANCE PID (PS_PTENS) 
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - PID
    • Enter the following diagnostic mode on the diagnostic tool: PS_PTENS (Passenger Retractor Circuit Resistance) Resistance PID
    • Does the resistance PID value read between 1.31 and 4.29 ohms? 
    1. YES  : Go to  E23.
    2. NO  : Go to  E13.
  13. E13 CHECK THE PASSENGER SAFETY BELT RETRACTOR PRETENSIONER RESISTANCE PID (PS_PTENS) WHILE CARRYING OUT A HARNESS TEST 
    • Continue monitoring the PS_PTENS (Passenger Retractor Circuit Resistance) resistance PID while carrying out a harness test of the passenger safety belt retractor pretensioner circuits and accessible connectors (including any inline connectors), by wiggling connectors and flexing the wire harness.
    • Does the resistance PID value read between 1.31 and 4.29 ohms while carrying out the harness test? 
    1. YES  : DEPOWER the SRS and REPAIR the connector, terminals or wire harness as needed. Refer to SYSTEM WIRING DIAGRAMS , Connector Repair Procedures for schematic and connector information. Go to  E28.
    2. NO  : If the passenger safety belt retractor pretensioner resistance PID is less than 1.31 ohms, go to  E14.

      If the passenger safety belt retractor pretensioner resistance PID is greater than 4.29 ohms, go to  E16.

  14. E14 CHECK THE PASSENGER SAFETY BELT RETRACTOR PRETENSIONER CIRCUIT FAULT PIDs (2292_26_OD) AND (2292_27_OD) FOR AN OPEN AND LOW RESISTANCE 
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Safety Belt Retractor Pretensioner C3202
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record The Following Fault PIDs
      • 2292_26_OD (Pretensioner Circuit Open, Front Passenger Side)
      • 2292_27_OD (Pretensioner Circuit Resistance Low, Front Passenger Side)
    • DIAGNOSTIC TIP:  When viewing DTC B2292 on-demand fault PIDs with the passenger pretensioner disconnected, an open circuit fault would normally be retrieved.
    • Did the passenger safety belt retractor pretensioner on-demand fault PIDs change from indicating a low resistance to an open circuit fault? 
    1. YES  : Go to  E22.
    2. NO  : Go to  E15.
  15. E15 CHECK FOR A SHORT BETWEEN THE PASSENGER SAFETY BELT RETRACTOR PRETENSIONER CIRCUITS RR121 (VT) AND CR121 (GY/VT) 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
      • Fig 6: Checking For A Short Between Passenger Safety Belt Retractor Pretensioner Circuits RR121 (VT) & CR121 (GY/VT)
      G04675893Courtesy of FORD MOTOR CO.
    • Measure the resistance between passenger safety belt retractor pretensioner C3202-1, circuit CR121 (GY/VT), harness side and C3202-2, circuit RR121 (VT), harness side.
    • Is the resistance greater than 10,000 ohms? 
    1. YES  : Go to  E23.
    2. NO  : REPAIR circuits CR121 (GY/VT) and RR121 (VT). Go to  E28.
  16. E16 CHECK THE PASSENGER SAFETY BELT PRETENSIONER CIRCUIT FAULT PIDs (2292_26_OD) AND (2292_27_OD) FOR AN OPEN AND LOW RESISTANCE  
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Safety Belt Retractor Pretensioner C3202
    • Connect a jumper wire between passenger safety belt pretensioner C3202-1, circuit CR121 (GY/VT), harness side and C3202-2, circuit RR121 (VT), harness side.
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record The Following Fault PIDs
      • 2292_26_OD (Pretensioner Circuit Open, Front Passenger Side)
      • 2292_27_OD (Pretensioner Circuit Resistance Low, Front Passenger Side)
    • DIAGNOSTIC TIP:  When viewing DTC B2292 on-demand fault PIDs with the passenger pretensioner circuits shorted together, a low resistance fault would normally be retrieved.
    • Did the passenger safety belt retractor pretensioner on-demand fault PIDs change from indicating an open circuit to a low resistance fault? 
    1. YES  : Go to  E22.
    2. NO  : Go to  E17.
  17. E17 CHECK CIRCUIT RR121 (VT) FOR AN OPEN 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Remove the jumper wire from passenger safety belt retractor pretensioner C3202.
    • Disconnect: RCM C310a and C310b
      • Fig 7: Checking Circuit RR121 (VT) For An Open
      GF0021828Courtesy of FORD MOTOR CO.
    • Measure the resistance between RCM C310b-33, circuit RR121 (VT), harness side and passenger safety belt retractor pretensioner C3202-2, circuit RR121 (VT), harness side.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  E18.
    2. NO  : REPAIR circuit RR121 (VT). Go to  E28.
  18. E18 CHECK CIRCUIT CR121 (GY/VT) FOR AN OPEN 
      Fig 8: Checking Circuit CR121 (GY/VT) For An Open
      GF0041244Courtesy of FORD MOTOR CO.
    • Measure the resistance between RCM C310b-34, circuit CR121 (GY/VT), harness side and passenger safety belt retractor pretensioner C3202-1, circuit CR121 (GY/VT), harness side.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  E23.
    2. NO  : REPAIR circuit CR121 (GY/VT). Go to  E28.
  19. E19 CHECK THE PASSENGER SAFETY BELT RETRACTOR PRETENSIONER CIRCUIT FAULT PIDs (2292_24_OD) AND (2292_26_OD) FOR A SHORT TO GROUND AND OPEN  
    NOTE: This pinpoint test step will attempt 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.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Safety Belt Retractor Pretensioner C3202
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record The Following Fault PIDs
      • 2292_24_OD (Pretensioner Circuit Short to Ground, Front Passenger Side)
      • 2292_26_OD (Pretensioner Circuit Open, Front Passenger Side)
    • DIAGNOSTIC TIP:  When viewing DTC B2292 on-demand fault PIDs with the passenger pretensioner disconnected, an open circuit fault would normally be retrieved.
    • Did the passenger safety belt retractor pretensioner on-demand fault PIDs change from indicating a short to ground to an open circuit fault? 
    1. YES  : Go to  E22.
    2. NO  : Go to  E20.
  20. E20 CHECK CIRCUITS RR121 (VT) AND CR121 (GY/VT) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: RCM C310a and C310b
      • Fig 9: Checking Circuits RR121 (VT) & CR121 (GY/VT) For A Short To Ground
      GF0013417Courtesy of FORD MOTOR CO.
    • Measure the resistance between passenger safety belt retractor pretensioner C3202-2, circuit RR121 (VT), harness side and ground; and between passenger safety belt retractor pretensioner C3202-1, circuit CR121 (GY/VT), harness side and ground.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  E23.
    2. NO  : REPAIR circuit RR121 (VT) or circuit CR121 (GY/VT). Go to  E28.
  21. E21 CHECK CIRCUITS RR121 (VT) AND CR121 (GY/VT) FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect: Passenger Side Air Bag Module C314
    • Disconnect: Passenger Safety Belt Retractor Pretensioner C3202
    • Disconnect: RCM C310a and C310b
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
      • Fig 10: Checking Circuits RR121 (VT) & CR121 (GY/VT) For A Short To Voltage
      GF0026610Courtesy of FORD MOTOR CO.
    • Measure the voltage between:
      • passenger safety belt retractor pretensioner C3202-2, circuit RR121 (VT), harness side and ground.
      • passenger safety belt retractor pretensioner C3202-1, circuit CR121 (GY/VT), harness side and ground.
    • Is any voltage present on either circuit? 
    1. YES  : REPAIR circuit RR121 (VT) or circuit CR121 (GY/VT). Go to  E28.
    2. NO  : Go to  E23.
  22. E22 CONFIRM THE 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 on-demand self test. If not, erroneous DTCs will be recorded.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Connect: Affected Safety Belt Retractor Pretensioner C323 (Driver) C3202 (Passenger)
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record All B2292 Fault PIDs
      • Refer to PID list in Normal Operation to view B2292 fault PIDs.
    • Does the original RCM on-demand DTC B2292 fault PID indicate a fault? 
    1. YES  : INSTALL a new driver or passenger safety belt retractor pretensioner. REFER to SAFETY BELT SYSTEM . Go to  E28.
    2. NO  : In the process of diagnosing the fault, the fault condition has become intermittent. Using the fault PIDs recorded, go to the appropriate pinpoint test step and CHECK for causes of the intermittent fault in the areas previously worked in, particularly the pins and terminals of electrical connectors that were disconnected.

      For 2292_31_CM (Pretensioner Circuit Resistance Low, Front Driver Side), 2292_27_CM (Pretensioner Circuit Resistance Low, Front Passenger Side), 2292_30_CM (Pretensioner Circuit Open, Front Driver Side) and 2292_26_CM (Pretensioner Circuit Open, Front Passenger Side), go to  E24.

      For 2292_28_CM (Pretensioner Circuit Short to Ground, Front Driver Side) and 2292_24_CM (Pretensioner Circuit Short to Ground, Front Passenger Side), go to  E26.

      For 2292_29_CM (Pretensioner Circuit Short to Battery, Front Driver Side) and 2292_25_CM (Pretensioner Circuit Short to Battery, Front Passenger Side), go to  E27.

  23. E23 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 on-demand self test. If not, erroneous DTCs will be recorded.
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Connect: All Restraint System Components (if previously disconnected)
    • Connect: RCM C310a and C310b (if previously disconnected)
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - RCM
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - View and Record All B2292 Fault PIDs
      • Refer to PID list in Normal Operation to view B2292 fault PIDs.
    • Does the original RCM on-demand DTC B2292 fault PID indicate a fault? 
    1. YES  : INSTALL a new RCM. REFER to Restraints Control Module (RCM) . Go to  E28.
    2. NO  : In the process of diagnosing the fault, the fault condition has become intermittent. Using the fault PIDs recorded, go to the appropriate pinpoint test step and CHECK for causes of the intermittent fault in the areas previously worked in, particularly the pins and terminals of electrical connectors that were disconnected.

      For 2292_31_CM (Pretensioner Circuit Resistance Low, Front Driver Side), 2292_27_CM (Pretensioner Circuit Resistance Low, Front Passenger Side), 2292_30_CM (Pretensioner Circuit Open, Front Driver Side) and 2292_26_CM (Pretensioner Circuit Open, Front Passenger Side), go to  E24.

      For 2292_28_CM (Pretensioner Circuit Short to Ground, Front Driver Side) and 2292_24_CM (Pretensioner Circuit Short to Ground, Front Passenger Side), go to  E26.

      For 2292_29_CM (Pretensioner Circuit Short to Battery, Front Driver Side) and 2292_25_CM (Pretensioner Circuit Short to Battery, Front Passenger Side), go to  E27.

  24. E24 CHECK SAFETY BELT RETRACTOR PRETENSIONER RESISTANCE PIDs FOR AN INTERMITTENT LOW RESISTANCE OR OPEN  
    • If the fault PID was reported for the driver safety belt retractor pretensioner, monitor the DR_PTENS (Pretensioner Circuit Resistance, Driver side) resistance PID.
    • If the fault PID was reported for the passenger safety belt retractor pretensioner, monitor the PS_PTENS (Passenger Retractor Circuit Resistance) pretensioner resistance PID.
      • NOTE: A resistance PID that reads between 0.9 and 1.31 ohms or between 4.29 and 5.0 ohms may or may not set an on-demand DTC yet indicates a strong potential of an intermittent fault condition. Make sure to thoroughly check wire harness(es), connectors and terminals as they are the likely source of the fault condition.
    • Attempt to recreate the fault by wiggling the connectors (including any inline connectors) and flexing the wire harness.
    • Does any safety belt retractor pretensioner resistance PID indicate less than 1.31 ohms or greater than 4.29 ohms? 
    1. YES  : DEPOWER the SRS and REPAIR as necessary. Refer to SYSTEM WIRING DIAGRAMS , Connector Repair Procedures for schematic and connector information. Go to  E28.
    2. NO  : Go to  E25.
  25. E25 CHECK THE HARNESS AND CONNECTORS 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect the affected safety belt retractor pretensioner C323 (driver) or C3202 (passenger):
      • inspect connector(s) (including any inline connectors) for corrosion, loose or spread terminals and loose or frayed wire connections at terminals.
      • inspect wire harness for any damage, pinched, cut or pierced wires.
    • Were any concerns found? 
    1. YES  : REPAIR as necessary. Refer to SYSTEM WIRING DIAGRAMS , Connector Repair Procedures for schematic and connector information. Go to  E28.
    2. NO  : The fault is not present and cannot be recreated at this time.

      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. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test.  REPAIR any intermittent wiring, terminal or connector concerns found. Go to  E28.

  26. E26 CHECK SAFETY BELT RETRACTOR PRETENSIONER CIRCUIT FAULT PIDs FOR AN INTERMITTENT SHORT TO GROUND 
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: DataLogger - RCM - PID
    • If the fault PID was reported for the driver safety belt retractor pretensioner, monitor the 2292_28_OD (Pretensioner Circuit Short to Ground, Front Driver Side) on-demand fault PID on the scan tool.
    • If the fault PID was reported for the passenger safety belt retractor pretensioner, monitor the 2292_24_OD (Pretensioner Circuit Short to Ground, Front Passenger Side) on-demand fault PID on the scan tool.
    • DIAGNOSTIC TIP:  When monitoring fault PIDs with the scan tool, it may take up to 2 seconds for the scan tool display to update.
    • Attempt to recreate the fault by wiggling connectors (including any inline connectors) and flexing the wire harness.
    • Does any safety belt retractor pretensioner on-demand fault PID indicate a fault is present? 
    1. YES  : DEPOWER the SRS and REPAIR as necessary. Refer to SYSTEM WIRING DIAGRAMS , Connector Repair Procedures for schematic and connector information. Go to  E28.
    2. NO  : The fault is not present and cannot be recreated at this time.

      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. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test.  REPAIR any intermittent wiring, terminal or connector concerns found. Go to  E28.

  27. E27 CHECK SAFETY BELT PRETENSIONER CIRCUIT FAULT PIDs FOR AN INTERMITTENT SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the SRS. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Disconnect the side air bag module electrical connector C328 (driver) or C3252 (passenger) on the side with the affected pretensioner.
    • Repower the SRS. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering .
    • Key in ON position.
    • If the fault PID was reported for the driver safety belt retractor pretensioner, monitor the 2292_29_OD (Pretensioner Circuit Short to Battery, Front Driver Side) on-demand fault PID.
    • If the fault PID was reported for the passenger safety belt retractor pretensioner, monitor the 2292_25_OD (Pretensioner Circuit Short to Battery, Front Passenger Side) on-demand fault PID.
    • DIAGNOSTIC TIP:  When monitoring fault PIDs with the scan tool, it may take up to 2 seconds for the scan tool display to update.
    • Attempt to recreate the fault by wiggling the connectors (including any inline connectors) and flexing the wire harness.
    • Does the safety belt retractor pretensioner short to battery on-demand fault PID indicate a fault is present? 
    1. YES  : DEPOWER the SRS and REPAIR as necessary. Refer to SYSTEM WIRING DIAGRAMS , Connector Repair Procedures for schematic and connector information. Go to  E28.
    2. NO  : The fault is not present and cannot be recreated at this time.

      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. Do not install any new SRS components at this time. SRS components should only be installed when directed to do so in the pinpoint test.  REPAIR any intermittent wiring, terminal or connector concerns found. Go to  E28.

  28. E28 CHECK FOR ADDITIONAL SRS DTCs 
    • Key in OFF position.
      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).
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Self Test - Restraints
    • Are any RCM and/or OCSM DTCs retrieved indicating a fault? 
    1. YES  : Do not clear any DTCs until all DTCs have been resolved. Go to the Supplemental Restraint System (SRS) DTC Chart  for pinpoint test direction.
    2. NO  : CLEAR all RCM and OCSM DTCs. PROVE OUT the SRS. REPAIR is complete. RETURN the vehicle to the customer.
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