Pinpoint Test H: DTC B2295 - Restraint System - Side Air Bag Fault
- H1 CHECK FOR ON-DEMAND AND CONTINUOUS 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.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: 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/Retrieve and Record Continuous Memory DTCs.
- Enter the following diagnostic mode on the scan tool: View and Record DTC B2295 Fault PIDs.
- Was on-demand DTC B2295 retrieved?
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 H2.
No : This is an intermittent fault. The fault condition is not present at this time. GO to H16.
- H2 CHECK THE DRIVER AND PASSENGER SEAT SIDE AIR BAG MODULES
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- If the flagged fault was reported for the driver seat side air bag module:
- Remove the driver seat side air bag module. Refer to SIDE AIR BAG MODULE .
- Connect restraint system diagnostic tool 418-133 to driver seat side air bag module C328.
- If the flagged fault was flagged for the passenger seat side air bag module:
- Remove the passenger seat side air bag module. Refer to SIDE AIR BAG MODULE .
- Connect restraint system diagnostic tool 418-133 to passenger seat side air bag module C314.
- 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/Retrieve and Record Continuous Memory DTCs.
- Enter the following diagnostic mode on the scan tool: View and Record DTC B2295 Fault PIDs.
- Was on-demand DTC B2295 retrieved?
Yes : Using the fault PIDs recorded in Step H1, GO to the appropriate pinpoint test step.
For driver seat side air bag module with a short to battery fault, GO to H3.
For driver seat side air bag module with a short to ground fault, GO to H4.
For driver seat side air bag module with an open circuit fault, GO to H5.
For driver seat side air bag module with a low resistance fault, GO to H7.
For passenger seat side air bag module with a short to battery fault, GO to H9.
For passenger seat side air bag module with a short to ground fault, GO to H10.
For passenger seat side air bag module with an open circuit fault, GO to H11.
For passenger seat side air bag module with a low resistance fault, GO to H13.
No : If the fault PID was for the driver seat side air bag module in Step H1, INSTALL a new driver seat side air bag module. REFER to SIDE AIR BAG MODULE . GO to H17.
If the fault PID was for the passenger seat side air bag module in Step H1, INSTALL a new passenger seat side air bag module. REFER to SIDE AIR BAG MODULE . GO to H17.
- H3 CHECK CIRCUITS CR105 (GN/BU) AND RR105 (GY/YE) FOR A SHORT TO BATTERY BETWEEN THE RCM AND THE DRIVER SEAT SIDE AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Seat Side Air Bag Module 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 side air bag module C328-1, circuit CR105 (GN/BU), harness side and ground; and between driver side air bag module C328-2, circuit RR105 (GY/YE), harness side and ground.
- Are the voltages less than 0.2 volt?
Yes : GO to H15.
No : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.
REPAIR circuit CR105 (GN/BU) or RR105 (GY/YE). GO to H17.
- H4 CHECK CIRCUITS CR105 (GN/BU) AND RR105 (GY/YE) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE DRIVER SEAT SIDE AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Seat Side Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-8, circuit CR105 (GN/BU), harness side and ground; and between RCM C310b-7, circuit RR105 (GY/YE), harness side and ground.
- Are the resistances greater than 10,000 ohms?
Yes : GO to H15.
No : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.
REPAIR circuit CR105 (GN/BU) or RR105 (GY/YE). GO to H17.
- H5 CHECK CIRCUIT CR105 (GN/BU) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER SEAT SIDE AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Seat Side Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-8, circuit CR105 (GN/BU), harness side and driver seat side air bag module C328-1, circuit CR105 (GN/BU), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to H6.
No : REPAIR circuit CR105 (GN/BU). GO to H17.
- H6 CHECK CIRCUIT RR105 (GY/YE) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER SEAT SIDE AIR BAG MODULE
- Measure the resistance between RCM C310b-7, circuit RR105 (GY/YE), harness side and driver seat side air bag module C328-2, circuit RR105 (GY/YE), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to H15.
No : REPAIR circuit RR105 (GY/YE). GO to H17.
- H7 CHECK FOR LOW RESISTANCE ON CIRCUITS CR105 (GN/BU) AND BETWEEN RR105 (GY/YE) THE DRIVER SEAT SIDE AIR BAG MODULE AND RCM
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Seat Side Air Bag Module Restraint System Diagnostic Tool.
- Measure the resistance between driver seat side air bag module C328-1, circuit CR105 (GN/BU), harness side and C328-2, circuit RR105 (GY/YE), harness side.
- Is the resistance greater than 10,000 ohms?
Yes : GO to H15.
No : GO to H8.
- H8 CHECK RCM FOR LOW RESISTANCE
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 7, component side and C310b pin 8, component side.
- Is the resistance greater than 10,000 ohms?
Yes : REPAIR circuit CR105 (GN/BU) and circuit RR105 (GY/YE). GO to H17.
No : GO to H15.
- H9 CHECK CIRCUITS CR106 (VT/GY) AND RR106 (YE/OG) FOR A SHORT TO BATTERY BETWEEN THE RCM AND THE PASSENGER SEAT SIDE AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Seat Side Air Bag Module 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 side air bag module C314-1, circuit CR106 (VT/GY), harness side and ground; and between passenger side air bag module C314-2, circuit RR106 (YE/OG), harness side and ground.
- Are the voltages less than 0.2 volt?
Yes : GO to H15.
No : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.
REPAIR circuit CR106 (VT/GY) or circuit RR106 (YE/OG). GO to H17.
- H10 CHECK CIRCUITS CR106 (VT/GY) AND RR106 (YE/OG) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER SEAT SIDE AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Seat Side Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-9, circuit CR106 (VT/GY), harness side and ground; and between RCM C310b-10, circuit RR106 (YE/OG), harness side and ground.
- Are the resistances greater than 10,000 ohms?
Yes : GO to H15.
No : Due to the shorting bar feature in the electrical connector, the fault can exist in either circuit. Do not remove or defeat the shorting bar.
REPAIR circuit CR106 (VT/GY) or circuit RR106 (YE/OG). GO to H17.
- H11 CHECK CIRCUIT CR106 (VT/GY) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER SEAT SIDE AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Seat Side Air Bag Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-9, circuit CR106 (VT/GY), harness side and passenger seat side air bag module C314-1, circuit CR106 (VT/GY), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to H12.
No : REPAIR circuit CR106 (VT/GY). GO to H17.
- H12 CHECK CIRCUIT RR106 (YE/OG) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER SEAT SIDE AIR BAG MODULE
- Measure the resistance between RCM C310b-10, circuit RR106 (YE/OG), harness side and passenger seat side air bag module C314-2, circuit RR106 (YE/OG), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to H15.
No : REPAIR circuit RR106 (YE/OG). GO to H17.
- H13 CHECK FOR LOW RESISTANCE ON CIRCUITS CR106 (VT/GY) AND RR106 (YE/OG) BETWEEN THE PASSENGER SEAT SIDE AIR BAG MODULE AND THE RCM
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Seat Side Air Bag Module Restraint System Diagnostic Tool.
- Measure the resistance between passenger seat side air bag module C314-1, circuit CR106 (VT/GY), harness side and C314-2, circuit RR106 (YE/OG), harness side.
- Is the resistance greater than 10,000 ohms?
Yes : GO to H15.
No : GO to H14.
- H14 CHECK THE RCM FOR LOW RESISTANCE
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 9, component side and C310b pin 10, component side.
- Is the resistance greater than 10,000 ohms?
Yes : REPAIR circuit CR106 (VT/GY) and circuit RR106 (YE/OG). GO to H17.
No : GO to H15.
- H15 CONFIRM THE RCM FAULT NOTE: Make sure all restraint system diagnostic tools, 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 system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Connect: Restraint System Diagnostic Tools.
- Connect: RCM C310a and C310b.
- Repower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Enter the following diagnostic mode on the scan tool: On-Demand Self Test/Retrieve and Record Continuous Memory DTCs.
- Enter the following diagnostic mode on the scan tool: View and Record B2295 Fault PIDs.
- Was on-demand DTC B2295 retrieved ?
Yes : INSTALL and CONFIGURE a new RCM. REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to H17.
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 H17.
- H16 CHECK FOR AN INTERMITTENT FAULT
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- If the flagged fault was reported for the driver seat side air bag module:
- Remove the driver seat side air bag module. Refer to SIDE AIR BAG MODULE .
- Connect restraint system diagnostic tool 418-133 to driver seat side air bag module C328.
- If the flagged fault was flagged for the passenger seat side air bag module:
- Remove the passenger seat side air bag module. Refer to SIDE AIR BAG MODULE .
- Connect restraint system diagnostic tool 418-133 to passenger seat side air bag module C314.
- 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/Retrieve and Record Continuous Memory DTCs.
- Enter the following diagnostic mode on the scan tool: View and Record DTC B2295 Fault PIDs.
- Was on-demand DTC B2295 retrieved?
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 seat side air bag module connector. REPAIR any intermittent concerns found.
If an intermittent concern was found and repaired, GO to H17.
If an intermittent concern was not found and repaired, USE the fault PIDs recorded and GO to the appropriate pinpoint test step.
For driver seat side air bag module with a short to battery fault, GO to H3.
For driver seat side air bag module with a short to ground fault, GO to H4.
For driver seat side air bag module with an open circuit fault, GO to H5.
For driver seat side air bag module with a low resistance fault, GO to H7.
For passenger seat side air bag module with a short to battery fault, GO to H9.
For passenger seat side air bag module with a short to ground fault, GO to H10.
For passenger seat side air bag module with an open circuit fault, GO to H11.
For passenger seat side air bag module with a low resistance fault, GO to H13.
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 others systems in the same wire harness. REPAIR any intermittent concerns found. GO to H17.
- H17 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous memory DTCs recorded during Step H1.
- Were any continuous memory DTCs retrieved during Step H1 ?
Yes : Do not clear any DTCs until all DTCs have been resolved. GO to the SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 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 OCS module and RCM DTCs.