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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 734 (Supplemental Inflatable Restraint System - F-150 & Mark LT) >> Diagnostic Tests >> Pinpoint Tests - Air Bag and Safety Belt Pretensioner Supplemental Restraint System (SRS) >> Pinpoint Tests >> Pinpoint Test J: LFC 33 and 34/DTC B2292 - Restraint System - Safety Belt Pretensioner Fault >> Pinpoint Test J: LFC 33 And 34/DTC B2292 - Restraint System - Safety Belt PRETENSIONER Fault

Pinpoint Test J: LFC 33 And 34/DTC B2292 - Restraint System - Safety Belt PRETENSIONER Fault

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. 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. J1 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: 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 diagnostic tool: On-Demand Self Test/Retrieve and Record Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: View and Record DTC B2292 Fault PIDs
    • Was on-demand DTC B2292 retrieved? 
    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. Go to  J2 .
    2. 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. Go to  J16 .
  2. J2 CHECK THE PRETENSIONER 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: The Affected Safety Belt Pretensioner C3201 (Driver) or C3202 (Passenger)
    • Connect: Restraint System Diagnostic Tool 418-F395 to the Affected Safety Belt Pretensioner C3201 (Driver) or C3202 (Passenger)
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test/Retrieve and Record Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: View and Record DTC B2292 Fault PIDs
    • Was on-demand DTC B2292 retrieved? 
    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 in Step J1, go to the appropriate pinpoint test step.

      For driver safety belt buckle pretensioner with a low resistance fault, go to  J3 .

      For driver safety belt buckle pretensioner with an open circuit fault, go to  J4 .

      For driver safety belt buckle pretensioner with a short to battery fault, go to  J6 .

      For driver safety belt buckle pretensioner with a short to ground fault, go to  J7 .

      For passenger safety belt buckle pretensioner with a low resistance fault, go to  J9 .

      For passenger safety belt buckle pretensioner with an open circuit fault, go to  J10 .

      For passenger safety belt buckle pretensioner with a short to battery fault, go to  J12 .

      For passenger safety belt buckle pretensioner with a short to ground fault, go to  J13 .

    2. NO  : INSTALL a new driver or passenger safety belt buckle pretensioner. REFER to SAFETY BELT SYSTEM article. Go to  J17 .
  3. J3 CHECK THE DRIVER SAFETY BELT PRETENSIONER CIRCUIT 1079 (LG/RD) AND CIRCUIT 1080 (LG/BK) FOR LOW RESISTANCE 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Driver Safety Belt Pretensioner Restraint System Diagnostic Tool
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-32, circuit 1080 (LG/BK), and C310b-31, circuit 1079 (LG/RD), harness side.
      • Fig 1: Measuring Resistance Between RCM C310b-32, 1080 (LG/BK), C310b-31, Circuit 1079 (LG/RD), Harness Side
      GF0002163Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 1,000,000 ohms? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1080 (LG/BK) and circuit 1079 (LG/RD). Go to  J17 .
  4. J4 CHECK CIRCUIT 1079 (LG/RD) FOR AN OPEN 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Driver Safety Belt Pretensioner Restraint System Diagnostic Tool
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-31, circuit 1079 (LG/RD), harness side and driver safety belt buckle pretensioner C3201-2, circuit 1079 (LG/RD), harness side.
      • Fig 2: Checking Circuit 1079 (LG/RD) For An Open
      GF0002164Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  J5.
    2. NO  : REPAIR circuit 1079 (LG/RD). Go to  J17 .
  5. J5 CHECK CIRCUIT 1080 (LG/BK) FOR AN OPEN 
    • Measure the resistance between RCM C310b-32, circuit 1080 (LG/BK), harness side and driver safety belt buckle pretensioner C3201-1, circuit 1080 (LG/BK), harness side.
      • Fig 3: Checking Circuit 1080 (LG/BK) For An Open
      GF0002165Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1080 (LG/BK). Go to  J17 .
  6. J6 CHECK CIRCUIT 1079 (LG/RD) AND CIRCUIT 1080 (LG/BK) FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Driver Safety Belt Pretensioner 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  in this article.
    • Key in ON position.
    • Measure the voltage between driver safety belt pretensioner C3201-1, circuit 1079 (LG/RD), harness side and ground; and between driver safety belt pretensioner C3201-2, circuit 1080 (LG/BK), harness side and ground.
      • Fig 4: Checking Circuit 1079 (LG/RD) And Circuit 1080 (LG/BK) For Short To Voltage
      G03881011Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1079 (LG/RD) or circuit 1080 (LG/BK). Go to  J17 .
  7. J7 CHECK CIRCUIT 1079 (LG/RD) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Driver Safety Belt Pretensioner Restraint System Diagnostic Tool
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-31, circuit 1079 (LG/RD), harness side and ground.
      • Fig 5: Measuring Resistance Between RCM C310b Pin 31, Circuit 1079 (LG/RD), Harness Side And Ground
      GF0002166Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 1,000,000 ohms? 
    1. YES  : Go to  J8.
    2. NO  : REPAIR circuit 1079 (LG/RD). Go to  J17 .
  8. J8 CHECK CIRCUIT 1080 (LG/BK) FOR A SHORT TO GROUND 
    • Measure the resistance between RCM C310b-32, circuit 1080 (LG/BK), harness side and ground.
      • Fig 6: Measuring Resistance Between RCM C310b Pin 32, Circuit 1080 (LG/BK), Harness Side And Ground
      GF0002167Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 1,000,000 ohms? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1080 (LG/BK). Go to  J17 .
  9. J9 CHECK THE PASSENGER SAFETY BELT PRETENSIONER CIRCUIT 1081 (YE/RD) AND CIRCUIT 1082 (YE/BK) FOR LOW RESISTANCE 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-34, circuit 1082 (YE/BK), and C310b-33, circuit 1081 (YE/RD), harness side.
      • Fig 7: Checking Passenger Safety Belt Pretensioner Circuit 1081 (YE/RD) And 1082 (YE/BK) For Low Resistance
      GF0002168Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 1,000,000 ohms? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1081 (YE/RD) and circuit 1082 (YE/BK). Go to  J17 .
  10. J10 CHECK CIRCUIT 1081 (YE/RD) FOR AN OPEN 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-33, circuit 1081 (YE/RD), harness side and passenger safety belt buckle pretensioner C3202-2, circuit 1081 (YE/RD), harness side.
      • Fig 8: Checking Circuit 1081 (YE/RD) For An Open
      GF0002169Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  J11.
    2. NO  : REPAIR circuit 1081 (YE/RD). Go to  J17 .
  11. J11 CHECK CIRCUIT 1082 (YE/BK) FOR AN OPEN 
    • Measure the resistance between RCM C310b-34, circuit 1082 (YE/BK), harness side and passenger safety belt buckle pretensioner C3202-1, circuit 1082 (YE/BK), harness side.
      • Fig 9: Checking Circuit 1082 (YE/BK) For An Open
      GF0002170Courtesy of FORD MOTOR CO.
    • Is the resistance less than 0.5 ohm? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1082 (YE/BK). Go to  J17 .
  12. J12 CHECK CIRCUIT 1081 (YE/RD) AND CIRCUIT 1082 (YE/BK) FOR A SHORT TO VOLTAGE 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Passenger Safety Belt Pretensioner 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  in this article.
    • Key in ON position.
    • Measure the voltage between passenger safety belt pretensioner C3202-1, circuit 1081 (YE/RD), harness side and ground; and between passenger safety belt pretensioner C3202-2, circuit 1082 (YE/BK), harness side and ground.
      • Fig 10: Checking Circuit 1081 (YE/RD) & Circuit 1082 (LB/BK) For Short To Voltage
      G03881011Courtesy of FORD MOTOR CO.
    • Are the voltages less than 0.2 volt? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1081 (YE/RD) or circuit 1082 (YE/BK). Go to  J17 .
  13. J13 CHECK CIRCUIT 1081 (YE/RD) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool
    • Disconnect: RCM C310a and C310b
    • Measure the resistance between RCM C310b-33, circuit 1081 (YE/RD), harness side and ground.
      • Fig 11: Measuring Resistance Between RCM C310b Pin 33, Circuit 1081 (YE/RD), Harness Side And Ground
      GF0002171Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 1,000,000 ohms? 
    1. YES  : Go to  J14.
    2. NO  : REPAIR circuit 1081 (YE/RD). Go to  J17 .
  14. J14 CHECK CIRCUIT 1082 (YE/BK) FOR A SHORT TO GROUND 
    • Measure the resistance between RCM C310b-34, circuit 1082 (YE/BK), harness side and ground.
      • Fig 12: Measuring Resistance Between RCM C310b Pin 34, Circuit 1082 (LB/BK), Harness Side And Ground
      GF0002172Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 1,000,000 ohms? 
    1. YES  : Go to  J15.
    2. NO  : REPAIR circuit 1082 (YE/BK). Go to  J17 .
  15. J15 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.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Connect: Restraint System Diagnostic Tool
    • Connect: 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  in this article.
    • Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test/Retrieve and Record Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: View and Record DTC B2292 Fault PIDs
    • Was on-demand DTC B2292 retrieved? 
    1. YES  : INSTALL a new RCM. REFER to Restraints Control Module (RCM)  in this article. Go to  J17 .
    2. 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  J17 .
  16. J16 CHECK FOR AN INTERMITTENT FAULT 
    • Key in OFF position.
    • Depower the system. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Disconnect: The Affected Safety Belt Pretensioner C3201 (Driver) or C3202 (Passenger)
    • Connect: Restraint System Diagnostic Tool 418-F395 to the Affected Safety Belt Pretensioner C3201 (Driver) or C3202 (Passenger)
    • Repower the system. Do not  prove out the system at this time. Refer to Supplemental Restraint System (SRS) Depowering and Repowering  in this article.
    • Enter the following diagnostic mode on the diagnostic tool: On-Demand Self Test/Retrieve and Record Continuous Memory DTCs
    • Enter the following diagnostic mode on the diagnostic tool: View and Record DTC B2292 Fault PIDs
    • Was on-demand DTC B2292 retrieved? 
    1. 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 safety belt buckle pretensioner electrical connector. REPAIR any intermittent concern found.

      If an intermittent concern was  found and repaired, go to  J17 .

      If an intermittent concern was not  found and repaired, USE the fault PIDs recorded and Go to the appropriate pinpoint test step.

      For driver safety belt pretensioner with a low resistance fault, go to  J3 .

      For driver safety belt pretensioner with an open circuit fault, go to  J4 .

      For driver safety belt pretensioner with a short to battery fault, go to  J6 .

      For driver safety belt pretensioner with a short to ground fault, go to  J7 .

      For passenger safety belt pretensioner with a low resistance fault, go to  J9 .

      For passenger safety belt pretensioner with an open circuit fault, go to  J10 .

      For passenger safety belt pretensioner with a short to battery fault, go to  J12 .

      For passenger safety belt pretensioner with a short to ground fault, go to  J13 .

    2. 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  J17 .
  17. J17 CHECK FOR ADDITIONAL DTCs 
    • Refer to the continuous memory DTCs recorded during Step J1.
    • Were any continuous memory DTCs retrieved during Step J1? 
    1. 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.
    2. NO  : RECONNECT the system. If previously directed to deactivate the system, REACTIVATE the system. REFER to Supplemental Restraint System (SRS) Deactivation and Reactivation  in this article. REPOWER the system. REFER to Supplemental Restraint System (SRS) Depowering and Repowering  in this article. PROVE OUT the system. CLEAR all DTCs.
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