Pinpoint Test R: LFC 33 And 34/DTC B2292 - Restraint System - Seat Belt PRETENSIONER Fault
- Most faults are due to connector and/or wiring concerns. Carry out a thorough Inspection and Verification before proceeding with the pinpoint test.
- The retractor pretensioner connector keying is different between vehicles. The retractor pretensioner connector shown in the following pinpoint test is equipped on the Five Hundred, the connector equipped on the Freestyle and Montego is similar.
- R1 CHECK FOR CONTINUOUS OR ON-DEMAND DTCs WARNING:
- Restraint system diagnostic tools are for service only. Tools must be removed prior to operating the vehicle over the road. Failure to remove restraint system diagnostic tools could result in injury and possible violation of vehicle safety standards.
- 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.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- 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.
- Never probe the electrical connector on a safety canopy module. Doing so can result in safety canopy deployment.
NOTE:- If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.
- After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
- Enter the following diagnostic mode on the scan tool: Flag DTC B2292/Record All Flagged Faults.
- Enter the following diagnostic mode on the scan tool: Retrieve/Flag/Record Continuous DTCs.
- 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 R2.
No: This is an intermittent fault. The fault condition is not present at this time. GO to R14.
- R2 CHECK PRETENSIONER NOTE: The retractor pretensioner connector keying is different between vehicles. The retractor pretensioner connector shown in the following pinpoint test is equipped on the Five Hundred, the connector equipped on the Freestyle and Montego is similar.
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Affected Safety Belt Pretensioner C354 (Driver) or C389 (Passenger).
- Connect: Restraint System Diagnostic Tool 418-F395 to the Affected Safety Belt Pretensioner C354 (Driver) or C389 (Passenger).
- Repower the system. Do not prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
- Enter the following diagnostic mode on the scan tool: Flag DTC 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.
Using the flagged faults recorded, 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 with a low resistance fault, GO to R3.
For driver safety belt pretensioner with an open circuit fault, GO to R4.
For driver safety belt pretensioner with a short to battery fault, GO to R6.
For driver safety belt pretensioner with a short to ground fault, GO to R7.
For passenger safety belt pretensioner with a low resistance fault, GO to R8.
For passenger safety belt pretensioner with an open circuit fault, GO to R9.
For passenger safety belt pretensioner with a short to battery fault, GO to R11.
For passenger safety belt pretensioner with a short to ground fault, GO to R12.
No: INSTALL a new safety belt pretensioner. REFER to REMOVAL AND INSTALLATION . GO to R15.
- R3 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 .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between driver safety belt pretensioner C354-2, circuit 1080 (LG/BK), and C354-1, circuit 1079 (LG/RD), harness side.
- Is the resistance greater than 1,000,000 ohms?
Yes: GO to R3.
No: REPAIR circuit 1079 (LG/RD) and circuit 1080 (LG/BK). GO to R15.
- R4 CHECK CIRCUIT 1079 (LG/RD) FOR AN OPEN
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-17, circuit 1079 (LG/RD), harness side and driver safety belt pretensioner C354-1, circuit 1079 (LG/RD), harness side.
- Is the resistance less than 0.5 ohm?
Yes: GO to R5.
No: REPAIR circuit 1079 (LG/RD). GO to R15.
- R5 CHECK CIRCUIT 1080 (LG/BK) FOR AN OPEN
- Measure the resistance between RCM C310b-18, circuit 1080 (LG/BK), harness side and driver safety belt pretensioner C354-2, circuit 1080 (LG/BK), harness side.
- Is the resistance less than 0.5 ohm?
Yes: GO to R13.
No: REPAIR circuit 1080 (LG/BK). GO to R15.
- R6 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 .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Repower the system. Do not prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Key in ON position.
- Measure the voltage between driver safety belt pretensioner C354-1, circuit 1079 (LG/RD), harness side and ground; and between driver safety belt pretensioner C354-2, circuit 1080 (LG/BK), harness side and ground.
- Are the voltages less than 0.2 volt?
Yes: GO to R13.
No: REPAIR circuit 1079 (LG/RD) or circuit 1080 (LG/BK). GO to R15.
- R7 CHECK CIRCUIT 1079 (LG/RD) AND CIRCUIT 1080 (LG/BK) FOR A SHORT TO GROUND
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between driver safety belt pretensioner C354-1, circuit 1079 (LG/RD), harness side and ground; and between driver safety belt pretensioner C354-2, circuit 1080 (LG/BK), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
Yes: GO to R13.
No: REPAIR circuit 1079 (LG/RD) or circuit 1080 (LG/BK). GO to R15.
- R8 CHECK THE PASSENGER SAFETY BELT PRETENSIONER CIRCUIT 1081 (YE/RD) AND CIRCUIT 1082 (LB/BK) FOR LOW RESISTANCE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between passenger safety belt pretensioner C389-2, circuit 1082 (LB/BK), and 3389-1, circuit 1081 (YE/RD), harness side.
- Is the resistance greater than 1,000,000 ohms?
Yes: GO to R13.
No: REPAIR circuit 1082 (LB/BK) and circuit 1081 (YE/RD). GO to R15.
- R9 CHECK CIRCUIT 1081 (YE/RD) FOR AN OPEN
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-35, circuit 1081 (YE/RD), harness side and passenger safety belt pretensioner C389-1, circuit 1081 (YE/RD), harness side.
- Is the resistance less than 0.5 ohm?
Yes: GO to R10.
No: REPAIR circuit 1081 (YE/RD). GO to R15.
- R10 CHECK CIRCUIT 1082 (LB/BK) FOR AN OPEN
- Measure the resistance between RCM C310b-36, circuit 1082 (LB/BK), harness side and passenger safety belt buckle pretensioner C389-2, circuit 1082 (LB/BK), harness side.
- Is the resistance less than 0.5 ohm?
Yes: GO to R13.
No: REPAIR circuit 1082 (LB/BK). GO to R15.
- R11 CHECK CIRCUIT 1081 (YE/RD) AND CIRCUIT 1082 (LB/BK) FOR A SHORT TO VOLTAGE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Repower the system. Do not prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Key in ON position.
- Measure the voltage between passenger safety belt pretensioner C389-1, circuit 1081 (YE/RD), harness side and ground; and between passenger safety belt pretensioner C389-2, circuit 1082 (LB/BK), harness side and ground.
- Are the voltages less than 0.2 volt?
Yes: GO to R13.
No: REPAIR circuit 1081 (YE/RD) or circuit 1082 (LB/BK). GO to R15.
- R12 CHECK CIRCUIT 1081 (YE/RD) AND CIRCUIT 1082 (LB/BK) FOR A SHORT TO GROUND
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between the passenger safety belt pretensioner C389-1, circuit 1081 (YE/RD), harness side and ground; and between the passenger safety belt pretensioner C389-2, circuit 1082 (LB/BK), harness side and ground
- Are the resistances greater than 1,000,000 ohms?
Yes: GO to R13.
No: REPAIR circuit 1081 (YE/RD) or circuit 1082 (LB/BK). GO to R15.
- R13 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 .
- Disconnect: Affected Safety Belt Pretensioner C354 (Driver) or C389 (Passenger).
- Connect: Restraint System Diagnostic Tool 418-F395 to the Affected Safety Belt Pretensioner C354 (Driver) or C389 (Passenger).
- 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 .
- Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
- Enter the following diagnostic mode on the scan 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) . GO to R15.
No: CHECK for causes of the intermittent fault on the pretensioner circuits. ATTEMPT to recreate the hard fault by flexing the wire harness and cycling the ignition key frequently. REPAIR any intermittent concerns found. GO to R15.
- R14 CHECK FOR AN INTERMITTENT FAULT
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Affected Safety Belt Pretensioner C354 (Driver) or C389 (Passenger).
- Connect: Restraint System Diagnostic Tool 418-F395 to the Affected Safety Belt Pretensioner C354 (Driver) or C389 (Passenger).
- Repower the system. Do not prove out the system at this time. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Enter the following diagnostic mode on the scan tool: On-Demand Self Test.
- Enter the following diagnostic mode on the scan tool: Flag DTC 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 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 pretensioner connector. REPAIR any intermittent concerns found.
If an intermittent concern was found and repaired, GO to R15.
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 with a low resistance fault, GO to R3.
For driver safety belt pretensioner with an open circuit fault, GO to R4.
For driver safety belt pretensioner with a short to battery fault, GO to R6.
For driver safety belt pretensioner with a short to ground fault, GO to R7.
For passenger safety belt pretensioner with a low resistance fault, GO to R8.
For passenger safety belt pretensioner with an open circuit fault, GO to R9.
For passenger safety belt pretensioner with a short to battery fault, GO to R11.
For passenger safety belt pretensioner with a short to ground fault, GO to R12.
No: If a flagged fault of "?" was recorded, multiple faults exist and the entire pinpoint test must be carried out.
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 R15.
- R15 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous DTCs recorded during Step R1.
- Were any continuous DTCs retrieved during Step R1 ?
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.