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

WARNING: This page is about a different car, the 2005 Lincoln LS. 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.

G1 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.

WARNING: Never probe the electrical connector on a side air curtain module. Doing so can result in side air curtain deployment.

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: Retrieve/Flag/Record 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 B2292/Record All Flagged Faults.
- Was DTC B2292 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 G2.
- No : This is an intermittent fault. The fault condition is not present at this time. GO to G18.
G2 CHECK THE PRETENSIONER
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING in this article.
- Disconnect: The Affected Safety Belt Retractor Pretensioner Electrical Connector C323 (Driver) Or C303 (Passenger).
- Connect: Restraint System Diagnostic Tool 418-F088 to the Affected Safety Belt Retractor Pretensioner Electrical Connector C323 (Driver) Or C303 (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.
- Was DTC B2292 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 G1, 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 safety belt retractor pretensioner (DF_PRT) with a low resistance (LOWRES) fault, GO to G3.
  
  For DF_PRT with an open circuit (O_CIR) fault, GO to G4.
  
  For DF_PRT with a short to battery (STB) fault, GO to G6.
  
  For DF_PRT with a short to ground (STG) fault, GO to G8.
  
  For passenger safety belt retractor pretensioner (PF_PRT) with a low resistance (LOWRES) fault, GO to G10.
  
  For PF_PRT with an open circuit (OCIR) fault, GO to G11.
  
  For PF_PRT with a short to battery (STB) fault, GO to G13.
  
  For PF_PRT with a short to ground (STG) fault, GO to G15.
- No : INSTALL a new driver or passenger safety belt retractor pretensioner. REFER to SAFETY BELT SYSTEM . GO to G19.
G3 CHECK THE DRIVER SAFETY BELT PRETENSIONER CIRCUIT 30S-JA33 (RD/BU) AND CIRCUIT 31S-JA33 (BK/BU) 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 C310b.
- Measure the resistance between RCM C310b pin 32, circuit 31S-JA33 (BK/BU), and pin 31, circuit 30S-JA33 (RD/BU), harness side.
  
  Fig 1: Checking The Driver Safety Belt Pretensioner Circuit 30S-JA33 (RD/BU) And Circuit 31S-JA33 (BK/BU) For Low Resistance
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 1,000,000 ohms?
- Yes : GO to G17.
- No : REPAIR circuit 31S-JA33 (BK/BU) and circuit 30S-JA33 (RD/BU).
  GO to G19.
G4 CHECK CIRCUIT 30S-JA33 (RD/BU) 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 C310b.
- Measure the resistance between RCM C310b pin 31, circuit 30S-JA33 (RD/BU), harness side and driver safety belt retractor pretensioner C323 pin 3, circuit 30S-JA33 (RD/BU), harness side.
  
  Fig 2: Checking Circuit 30S-JA33 (RD/BU) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to G5.
- No : REPAIR circuit 30S-JA33 (RD/BU). GO to G19.
G5 CHECK CIRCUIT 31S-JA33 (BK/BU) FOR AN OPEN
- Measure the resistance between RCM C310b pin 32, circuit 31S-JA33 (BK/BU), harness side and driver safety belt retractor pretensioner C323 pin 1, circuit 31S-JA33 (BK/BU), harness side.
  
  Fig 3: Checking Circuit 31S-JA33 (BK/BU) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to G17.
- No : REPAIR circuit 31S-JA33 (BK/BU). GO to G19.
G6 CHECK CIRCUIT 30S-JA33 (RD/BU) FOR A SHORT TO VOLTAGE
- Key in OFF position.
- Deactivate the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION in this article.
- Disconnect: Driver Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Disconnect: RCM C310b.
- Key in ON position.
- Measure the voltage between RCM C310b pin 31, circuit 30S-JA33 (RD/BU), harness side and ground.
  
  Fig 4: Measuring Voltage Between RCM C310b Pin 31, Circuit 30S-JA33 (RD/BU) And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage less than 0.2 volt?
- Yes : GO to G7.
- No : REPAIR circuit 30S-JA33 (RD/BU). GO to G19.
G7 CHECK CIRCUIT 31S-JA33 (BK/BU) FOR A SHORT TO VOLTAGE
- Measure the voltage between RCM C310b pin 32, circuit 31S-JA33 (BK/BU), harness side and ground.
  
  Fig 5: Measuring Voltage Between RCM C310b Pin 32, Circuit 31S-JA33 (BK/BU) And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage less than 0.2 volt?
- Yes : GO to G17.
- No : REPAIR circuit 31S-JA33 (BK/BU). GO to G19.
G8 CHECK CIRCUIT 30S-JA33 (RD/BU) 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 C310b.
- Measure the resistance between RCM C310b pin 31, circuit 30S-JA33 (RD/BU), harness side and ground.
  
  Fig 6: Measuring Resistance Between RCM C310b Pin 31, Circuit 30S-JA33 (RD/BU) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 1,000,000 ohms?
- Yes : GO to G9.
- No : REPAIR circuit 30S-JA33 (RD/BU). GO to G19.
G9 CHECK CIRCUIT 31S-JA33 (BK/BU) FOR A SHORT TO GROUND
- Measure the resistance between RCM C310b pin 32, circuit 31S-JA33 (BK/BU), harness side and ground.
  
  Fig 7: Measuring Resistance Between RCM C310b Pin 32, Circuit 31S-JA33 (BK/BU) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 1,000,000 ohms?
- Yes : GO to G17.
- No : REPAIR circuit 31S-JA33 (BK/BU). GO to G19.
G10 CHECK THE PASSENGER SAFETY BELT PRETENSIONER CIRCUIT 30S-JA34 (RD/BK) AND CIRCUIT 31S-JA34 (BK/RD) FOR LOW RESISTANCE
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING in this article.
- Disconnect: RCM C310b.
- Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Measure the resistance between RCM C310b pin 34, circuit 31S-JA34 (BK/RD), and pin 33, circuit 30S-JA34 (RD/BK), harness side.
  
  Fig 8: Measuring Resistance Between RCM C310b Pin 34, Circuit 31S-JA34 (BK/RD), And Pin 33, Circuit 30S-JA34 (RD/BK), Harness Side
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 1,000,000 ohms?
- Yes : GO to G17.
- No : REPAIR circuit 30S-JA34 (RD/BK) and circuit 31S-JA34 (BK/RD). GO to G19.
G11 CHECK CIRCUIT 30S-JA34 (RD/BK) FOR AN OPEN
- Key in OFF position.
- Depower the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING in this article.
- Disconnect: RCM C310b.
- Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Measure the resistance between RCM C310b pin 33, circuit 30S-JA34 (RD/BK), harness side and passenger safety belt retractor pretensioner C303 pin 3, circuit 30S-JA34 (RD/BK), harness side.
  
  Fig 9: Checking Circuit 30S-JA34 (RD/BK) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to G12.
- No : REPAIR circuit 30S-JA34 (RD/BK). GO to G19.
G12 CHECK CIRCUIT 31S-JA34 (BK/RD) FOR AN OPEN
- Measure the resistance between RCM C310b pin 34, circuit 31S-JA34 (BK/RD), harness side and passenger safety belt retractor pretensioner C303 pin 1, circuit 31S-JA34 (BK/RD), harness side.
  
  Fig 10: Checking Circuit 31S-JA34 (BK/RD) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 0.5 ohm?
- Yes : GO to G17.
- No : REPAIR circuit 31S-JA34 (BK/RD). GO to G19.
G13 CHECK CIRCUIT 30S-JA34 (RD/BK) FOR A SHORT TO VOLTAGE
- Key in OFF position.
- Deactivate the system. refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATION in this article.
- Disconnect: RCM C310b.
- Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Key in ON position.
- Measure the voltage between RCM C310b pin 33, circuit 30S-JA34 (RD/BK), harness side and ground.
  
  Fig 11: Measuring Voltage Between RCM C310b Pin 33, Circuit 30S-JA34 (RD/BK) And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage less than 0.2 volt?
- Yes : GO to G14.
- No : REPAIR circuit 30S-JA34 (RD/BK). GO to G19.
G14 CHECK CIRCUIT 31S-JA34 (BK/RD) FOR A SHORT TO VOLTAGE
- Measure the voltage between RCM C310b pin 34, circuit 31S-JA34 (BK/RD), harness side and ground.
  
  Fig 12: Measuring Voltage Between RCM C310b Pin 34, Circuit 31S-JA34 (BK/RD) And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage less than 0.2 volt?
- Yes : GO to G17.
- No : REPAIR circuit 31S-JA34 (BK/RD). GO to G19.
G15 CHECK CIRCUIT 30S-JA34 (RD/BK) 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: RCM C310b.
- Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Measure the resistance between RCM C310b pin 33, circuit 30S-JA34 (RD/BK), harness side and ground.
  
  Fig 13: Measuring Resistance Between RCM C310b Pin 33, Circuit 30S-JA34 (RD/BK) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 1,000,000 ohms?
- Yes : GO to G16.
- No : REPAIR circuit 30S-JA34 (RD/BK). GO to G19.
G16 CHECK CIRCUIT 31S-JA34 (BK/RD) FOR A SHORT TO GROUND
- Measure the resistance between RCM C310b pin 34, circuit 31S-JA34 (BK/RD), harness side and ground.
  
  Fig 14: Measuring Resistance Between RCM C310b Pin 34, Circuit 31S-JA34 (BK/RD) And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 1,000,000 ohms?
- Yes : GO to G17.
- No : REPAIR circuit 31S-JA34 (BK/RD). GO to G19.
G17 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 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.
- Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2292/Record All Flagged Faults.
- Was DTC B2292 retrieved during the on-demand self test?
- Yes : If a "?" was flagged by the diagnostic tool CARRY OUT the entire pinpoint test. INSTALL a new RCM. REFER to RESTRAINTS CONTROL MODULE (RCM) in this article. GO to G19.
- No : CHECK for causes of the intermittent fault at or near the affected safety belt retractor pretensioner electrical connector. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. REPAIR any intermittent concerns found. GO to G19.
G18 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 Retractor Pretensioner Electrical Connector C323 (Driver) Or C303 (Passenger).
- Connect: Restraint System Diagnostic Tool 418-F088 to the Affected Safety Belt Retractor Pretensioner Electrical Connector C323 (Driver) Or C303 (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.
- Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2292/Record All Flagged Faults.
- Was DTC B2292 retrieved during the on-demand self test?
- Yes : CHECK for causes of the intermittent fault at or near the affected safety belt retractor pretensioner electrical connector. REPAIR any intermittent concern found.
  If an intermittent concern was found and repaired, GO to G19.
  
  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 safety belt pretensioner (DF_PRT) with a low resistance (LOWRES) fault, GO to G3.
  
  For DF_PRT with an open circuit (O_CIR) fault, GO to G4.
  
  For DF_PRT with a short to battery (STB) fault, GO to G6.
  
  For DF_PRT with a short to ground (STG) fault, GO to G8.
  
  For passenger safety belt pretensioner (PF_PRT) with a low resistance (LOWRES) fault, GO to G10.
  
  For PF_PRT with an open circuit (O_CIR) fault, GO to G11.
  
  For PF_PRT with a short to battery (STB) fault, GO to G11.
  
  For PF_PRT with a short to ground (STG) fault, GO to G15.
- No : CHECK for causes of the intermittent fault at or near the affected safety belt retractor pretensioner electrical connector. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. REPAIR any intermittent concerns found. GO to 19.
G19 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous DTCs recorded during Step G1.
- Were any continuous DTCs retrieved during Step G1 ?
- 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 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.