Pinpoint Test G: DTC B2294 - Restraint System - Curtain Fault
- 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: 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 B2294 Fault PIDs.
- Was on-demand DTC B2294 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 G2.
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 G16.
- G2 CHECK THE DRIVER AND PASSENGER SIDE AIR CURTAIN 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 side air curtain module:
- Disconnect the driver side air curtain module C3055.
- Connect restraint system tool 418-133 to the driver side air curtain module C3055.
- If the flagged fault was reported for the passenger side air curtain module:
- Disconnect the passenger side air curtain module C3056.
- Connect restraint system tool 418-133 to the passenger side air curtain module C3056.
- 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 B2294 Fault PIDs.
- Was on-demand DTC B2294 retrieved?
Yes : Using the fault PIDs recorded in Step G1, GO to the appropriate pinpoint test step.
For driver side air curtain module with a short to battery fault, GO to G3.
For driver side air curtain module with a short to ground fault, GO to G4.
For driver side air curtain module with an open circuit fault, GO to G5.
For driver side air curtain module with a low resistance fault, GO to G7.
For passenger side air curtain module with a short to battery fault, GO to G9.
For passenger side air curtain module with a short to ground fault, GO to G10.
For passenger side air curtain module with an open circuit fault, GO to G11.
For passenger side air curtain module with a low resistance fault, GO to G13.
No : If the fault PID was for the driver side air curtain module in Step G1, INSTALL a new driver side air curtain module. REFER to SIDE AIR CURTAIN MODULE . GO to G17.
If the fault PID was for the passenger side air curtain module in Step G1, INSTALL a new passenger side air curtain module. REFER to SIDE AIR CURTAIN MODULE . GO to G17.
- G3 CHECK CIRCUIT CR109 (BN/BU) AND CIRCUIT RR109 (BU/GN) FOR A SHORT TO BATTERY BETWEEN THE RCM AND THE DRIVER SIDE AIR CURTAIN MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Side Air Curtain Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Key in ON position.
- Measure the voltage between driver side air curtain module C3055-1, circuit CR109 (BN/BU), harness side and ground; and between driver side air curtain module C3055-2, circuit RR109 (BU/GN), harness side and ground.
- Are the voltages less than 0.2 volt?
Yes : GO to G15.
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 CR109 (BN/BU) or circuit RR109 (BU/GN). GO to G17.
- G4 CHECK CIRCUIT CR109 (BN/BU) AND CIRCUIT RR109 (BU/GN) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE DRIVER SIDE AIR CURTAIN MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Side Air Curtain Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-21, circuit CR109 (BN/BU), harness side and ground; and between RCM C310b-22, circuit RR109 (BU/GN), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
Yes : GO to G15.
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 CR109 (BN/BU) or circuit RR109 (BU/GN). GO to G17.
- G5 CHECK CIRCUIT CR109 (BN/BU) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER SIDE AIR CURTAIN MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Side Air Curtain Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-21, circuit CR109 (BN/BU), harness side and driver side air curtain module C3055-1, circuit CR109 (BN/BU), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to G6.
No : REPAIR circuit CR109 (BN/BU). GO to G17.
- G6 CHECK CIRCUIT RR109 (BU/GN) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER SIDE AIR CURTAIN MODULE
- Measure the resistance between RCM C310b-22, circuit RR109 (BU/GN), harness side and driver side air curtain module C3055-2, circuit RR109 (BU/GN), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to G15.
No : REPAIR circuit RR109 (BU/GN). GO to G17.
- G7 CHECK FOR LOW RESISTANCE ON CIRCUIT CR109 (BN/BU) AND CIRCUIT RR109 (BU/GN) BETWEEN THE DRIVER SIDE AIR CURTAIN MODULE AND THE RCM
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Driver Side Air Curtain Module Restraint System Diagnostic Tool.
- Measure the resistance between driver side air curtain module C3055-1, circuit CR109 (BN/BU), harness side and C3055-2, circuit RR109 (BU/GN), harness side.
- Is the resistance greater than 10,000 ohms?
Yes : GO to G15.
No : GO to G8.
- G8 CHECK THE RCM FOR LOW RESISTANCE
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 21, component side, and C310b pin 22, component side.
- Is the resistance greater than 10,000 ohms?
Yes : REPAIR circuit CR109 (BN/BU) and circuit RR109 (BU/GN). GO to G17.
No : GO to G15.
- G9 CHECK CIRCUIT CR111 (BN/WH) AND CIRCUIT RR111 (YE/VT) FOR A SHORT TO BATTERY BETWEEN THE RCM AND THE PASSENGER SIDE AIR CURTAIN MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Side Air Curtain 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 curtain module C3056-1, circuit CR111 (BN/WH), harness side and ground; and between passenger side air curtain module C3056-2, circuit RR111 (YE/VT), harness side and ground.
- Are the voltages less than 0.2 volt?
Yes : GO to G15.
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 CR111 (BN/WH) or circuit RR111 (YE/VT). GO to G17.
- G10 CHECK CIRCUIT CR111 (BN/WH) AND CIRCUIT RR111 (YE/VT) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER SIDE AIR CURTAIN MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Side Air Curtain Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-1, circuit CR111 (BN/WH), harness side and ground; and between RCM C310b-2, circuit RR111 (YE/VT), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
Yes : GO to G15.
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 CR111 (BN/WH) or circuit RR111 (YE/VT). GO to G17.
- G11 CHECK CIRCUIT CR111 (BN/WH) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER SIDE AIR CURTAIN MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Side Air Curtain Module Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b-1, circuit CR111 (BN/WH), harness side and passenger side air curtain module C3056-1, circuit CR111 (BN/WH), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to G15.
No : REPAIR circuit CR111 (BN/WH). GO to G17.
- G12 CHECK CIRCUIT RR111 (YE/VT) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER SIDE AIR CURTAIN MODULE
- Measure the resistance between RCM C310b-2, circuit RR111 (YE/VT), harness side and passenger side air curtain module C3056-2, circuit RR111 (YE/VT), harness side.
- Is the resistance less than 0.5 ohm?
Yes : GO to G15.
No : REPAIR circuit RR111 (YE/VT). GO to G17.
- G13 CHECK FOR LOW RESISTANCE ON CIRCUIT CR111 AND CIRCUIT RR111 (YE/VT) BETWEEN THE PASSENGER SIDE AIR CURTAIN MODULE AND THE RCM
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEPOWERING AND REPOWERING .
- Disconnect: Passenger Side Air Curtain Module Restraint System Diagnostic Tool.
- Measure the resistance between passenger side air curtain module C3056-1, circuit CR111 (BN/WH), harness side and C3056-2, circuit RR111 (YE/VT), harness side.
- Is the resistance greater than 10,000 ohms?
Yes : GO to G15.
No : GO to G14.
- G14 CHECK THE RCM FOR LOW RESISTANCE
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310b pin 1, component side and C310b pin 2, component side.
- Is the resistance greater than 10,000 ohms?
Yes : REPAIR circuit CR111 (BN/WH) and circuit RR111 (YE/VT). GO to G17.
No : GO to G15.
- G15 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 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 B2294 Fault PIDs.
- Was on-demand DTC B2294 retrieved?
Yes : INSTALL and CONFIGURE a new RCM. REFER to RESTRAINTS CONTROL MODULE (RCM) . GO to G17.
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. REPAIR any intermittent concerns found. GO to G17.
- G16 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 side air curtain module:
- Disconnect driver side air curtain module C3055.
- Connect restraint system tool 418-133 to driver side air curtain module C3055.
- If the flagged fault was reported for the passenger side air curtain module:
- Disconnect passenger side air curtain module C3056.
- Connect restraint system tool 418-133 to passenger side air curtain module C3056.
- 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 B2294 Fault PIDs.
- Was on-demand DTC B2294 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 side air curtain module connector. REPAIR any intermittent concerns found.
If an intermittent concern was found and repaired, GO to G17.
If an intermittent concern was not found and repaired, USE the fault PIDs recorded and GO to the appropriate pinpoint test step.
For driver side air curtain module with a short to battery fault, GO to G3.
For driver side air curtain module with a short to ground fault, GO to G4.
For driver side air curtain module with an open circuit fault, GO to G5.
For driver side air curtain module with a low resistance fault, GO to G7.
For passenger side air curtain module with a short to battery fault, GO to G9.
For passenger side air curtain module with a short to ground fault, GO to G10.
For passenger side air curtain module with an open circuit fault, GO to G11.
For passenger side air curtain module with a low resistance fault, GO to G13.
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. REPAIR any intermittent concerns found. GO to G17.
- G17 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous memory DTCs recorded during Step G1.
- Were any continuous memory DTCs retrieved during Step G1 ?
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.