Pinpoint Test J: LFC 33 And 34/DTC B2292 - Restraint System - Safety Belt PRETENSIONER Fault
- 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.
- Enter the following diagnostic mode on the diagnostic tool: Flag DTC B2292/Record All Flagged Faults.
- Enter the following diagnostic mode on the diagnostic tool: Retrieve/Flag/Record Continuous DTCs.
- Was DTC B2292 retrieved during the on-demand self test?
- J2 CHECK THE PRETENSIONER
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- 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 .
- 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 J1, 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 buckle pretensioner (DF___PRT) with a low resistance (LOWERS) fault, GO to J3.
For DF___PRT with an open circuit (O___CIR) fault, GO to J4.
For DF___PRT with a short to battery (STB) fault, GO to J6.
For DF___PRT with a short to ground (STG) fault, GO to J7.
For passenger safety belt buckle pretensioner (PF___PRT) with a low resistance (LOWERS) fault, GO to J9.
For PF___PRT with an open circuit (O___CIR) fault, GO to J10.
For PF___PRT with a short to battery (STB) fault, GO to J12.
For PF___PRT with a short to ground (STG) fault, GO to J13.
- No : INSTALL a new driver or passenger safety belt buckle pretensioner. REFER to SAFETY BELT SYSTEM . GO to J17.
- 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 .
- Disconnect: Driver Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 32, circuit 1080 (LG/BK), and pin 31, circuit 1079 (LG/RD), harness side.
- Is the resistance greater than 1,000,000 ohms?
- 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 .
- Disconnect: Driver Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 31, circuit 1079 (LG/RD), harness side and driver safety belt buckle pretensioner C3201 circuit 1079 (LG/RD), harness side.
- Is the resistance less than 0.5 ohm?
- J5 CHECK CIRCUIT 1080 (LG/BK) FOR AN OPEN
- Measure the resistance between RCM C310b pin 32, circuit 1080 (LG/BK), harness side and driver safety belt buckle pretensioner C3201 circuit 1080 (LG/BK), harness side.
- Is the resistance less than 0.5 ohm?
- 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 .
- 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 .
- Key in ON position.
- Measure the voltage between driver safety belt pretensioner C3201 pin 1, circuit 1079 (LG/RD), harness side and ground; and between driver safety belt pretensioner C3201 pin 2, circuit 1080 (LG/BK), harness side and ground.
- Are the voltages less than 0.2 volt?
- 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 .
- Disconnect: Driver Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 31, circuit 1079 (LG/RD), harness side and ground.
- Is the resistance greater than 1,000,000 ohms?
- J8 CHECK CIRCUIT 1080 (LG/BK) FOR A SHORT TO GROUND
- Measure the resistance between RCM C310b pin 32, circuit 1080 (LG/BK), harness side and ground.
- Is the resistance greater than 1,000,000 ohms?
- 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 .
- Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 34, circuit 1082 (YE/BK), and pin 33, circuit 1081 (YE/RD), harness side.
- Is the resistance greater than 1,000,000 ohms?
- 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 .
- Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 33, circuit 1081 (YE/RD), harness side and passenger safety belt buckle pretensioner C3202 circuit 1081 (YE/RD), harness side.
- Is the resistance less than 0.5 ohm?
- J11 CHECK CIRCUIT 1082 (YE/BK) FOR AN OPEN
- Measure the resistance between RCM C310b pin 34, circuit 1082 (YE/BK), harness side and passenger safety belt buckle pretensioner C3202, circuit 1082 (YE/BK), harness side.
- Is the resistance less than 0.5 ohm?
- 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 .
- 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 .
- Key in ON position.
- Measure the voltage between passenger safety belt pretensioner C3202 pin 1, circuit 1081 (YE/RD), harness side and ground; and between passenger safety belt pretensioner C3202 pin 2, circuit 1082 (YE/BK), harness side and ground.
- Are the voltages less than 0.2 volt?
- 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 .
- Disconnect: Passenger Safety Belt Pretensioner Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 33, circuit 1081 (YE/RD), harness side and ground.
- Is the resistance greater than 1,000,000 ohms?
- J14 CHECK CIRCUIT 1082 (YE/BK) FOR A SHORT TO GROUND
- Measure the resistance between RCM C310b pin 34, circuit 1082 (YE/BK), harness side and ground.
- Is the resistance greater than 1,000,000 ohms?
- 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 .
- Connect: Restraint System Diagnostic Tools.
- 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 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 . GO to J17.
- 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.
- J16 CHECK FOR AN INTERMITTENT FAULT
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- 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 .
- 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 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 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 (LOWERS) fault, GO to J3.
For DF___PRT with an open circuit (O___CIR) fault, GO to J4.
For DF___PRT with a short to battery (STB fault, GO to J6.
For DF___PRT with a short to ground (STG) fault, GO to J7.
For passenger safety belt pretensioner (PF___PRT) with a low resistance (LOWERS) fault, GO to J9.
For PF___PRT with an open circuit (O___CIR) fault, GO to J10.
For PF___PRT with a short to battery (STB fault, GO to J12.
For PF___PRT with a short to ground (STG) fault, GO to J13.
- 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.
- J17 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous DTCs recorded during Step J1.
- Were any continuous DTCs retrieved during Step J1 ?
- 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.