Pinpoint Test K: LFC 19 And 21/DTC B2293 - Restraint System - Air Bag Fault
- K1 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 B2293/Record All Flagged Faults.
- Enter the following diagnostic mode on the diagnostic tool: Retrieve/Flag/Record Continuous DTCs.
- Was DTC B2293 retrieved during the on-demand self test?
- K2 CHECK THE DRIVER AND PASSENGER 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 air bag module:
- Remove the driver air bag module. Refer to DRIVER AIR BAG MODULE .
- Connect restraint system diagnostic tools 418-F395 (2 required) to the driver air bag module squib 1 and squib 2 connectors.
- If the flagged fault was reported for the passenger air bag module:
- Disconnect the passenger air bag module C256a and C256b.
- Connect restraint system diagnostic tool 418-F395 (2 required) to passenger air bag module C256a and C256b.
- 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 B2293 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 K1, 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 air bag module squib 1 (D___ABAG) with a short to ground (STG) fault, GO to K3.
For driver air bag module squib 1 (D___ABAG) with a short to battery (STB) fault, GO to K5.
For driver air bag module squib 1 (D___ABAG) with an open circuit (O___CIR) fault, GO to K7.
For driver air bag module squib 1 (D___ABAG) with a low resistance (LOWERS) fault, GO to K11.
For passenger air bag module squib 1 (P___ABAG) with a short to ground (STG) fault, GO to K14.
For passenger air bag module squib 1 (P___ABAG) with a short to battery (STB) fault, GO to K15.
For passenger air bag module squib 1 (P___ABAG) with an open circuit (O___CIR) fault, GO to K16.
For passenger air bag module squib 1 (P___ABAG) with a low resistance (LOWERS) fault, GO to K18.
For driver air bag module squib 2 (D___ABAG2) with a short to ground (STG) fault, GO to K20.
For driver air bag module squib 2 (D___ABAG2) with a short to battery (STB) fault, GO to K22.
For driver air bag module squib 2 (D___ABAG2) with an open circuit (O___CIR) fault, GO to K24.
For driver air bag module squib 2 (D___ABAG2) with a low resistance (LOWERS) fault, GO to K28.
For passenger air bag module squib 2 (P___ABAG2) with a short to ground (STG) fault, GO to K31.
For passenger air bag module squib 2 (P___ABAG2) with a short to battery (STB) fault, GO to K32.
For passenger air bag module squib 2 (P___ABAG2) with an open circuit (O___CIR) fault, GO to K33.
For passenger air bag module squib 2 (P___ABAG2) with a low resistance (LOWERS) fault, GO to K35.
- No
: If a flagged fault of "?"
was recorded in Step K1, multiple faults exist and the entire pinpoint test must be carried out.
If a fault was flagged against driver air bag module in Step K1, INSTALL a new driver air bag module. REFER to DRIVER AIR BAG MODULE . GO to K39.
If a fault was flagged against passenger air bag module in Step K1, INSTALL a new passenger air bag module. REFER to PASSENGER AIR BAG MODULE . GO to K39.
- K3 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: RCM C310a and C310b.
- Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a pin 2, circuit 615 (GY/WH), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
- Yes : GO to K37.
- No : GO to K4.
- K4 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218a.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and ground; and between RCM C310a pin 2, circuit 615 (GY/WH), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- 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 614 (GY/OG) or circuit 615 (GY/WH). GO to K39.
- K5 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Driver Air Bag Module Squib 1 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 air bag module squib 1 electrical connector, circuit 614 (GY/OG), harness side and ground; and between driver air bag module squib 1 electrical connector, circuit 615 (GY/WH), harness side and ground.
- Are the voltages less than 0.2 volt?
- Yes : GO to K37.
- No : GO to K6.
- K6 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE CLOCKSPRING
- Key in OFF position.
- Disconnect: Clockspring C218a.
- Key in ON position.
- Measure the voltage between clockspring C218a pin 3, circuit 615 (GY/WH), harness side and ground; and between clockspring C218a pin 4, circuit 614 (GY/OG), harness side and ground.
- Are the voltages less than 0.2 volt?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- 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 614 (GY/OG) or 615 (GY/WH). GO to K39.
- K7 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and driver air bag module squib 1 electrical connector, circuit 614 (GY/OG), harness side.
- Is the resistance less than 0.5 ohm?
- K8 CHECK CIRCUIT 614 (GY/OG) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218a.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), harness side and clockspring C218a pin 4, circuit 614 (GY/OG), harness side.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- No : REPAIR circuit 614 (GY/OG). GO to K39.
- K9 CHECK CIRCUIT 615 (GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 2, circuit 615 (GY/WH), harness side and driver air bag module squib 1 electrical connector, circuit 615 (GY/WH), harness side.
- Is the resistance less than 0.5 ohm?
- Yes : GO to K37.
- No : GO to K10.
- K10 CHECK CIRCUIT 615 (GY/WH) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218a.
- Measure the resistance between RCM C310a pin 2, circuit 615 (GY/WH), harness side and clockspring C218a pin 3, circuit 615 (GY/WH), harness side.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- No : REPAIR circuit 615 (GY/WH). GO to K39.
- K11 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR LOW RESISTANCE BETWEEN THE DRIVER AIR BAG MODULE AND THE RCM
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Driver Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Measure the resistance between driver air bag module squib 1 electrical connector, circuit 614 (GY/OG) and circuit 615 (GY/WH), harness side.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to K37.
- No : GO to K12.
- K12 MEASURE THE RESISTANCE BETWEEN RCM CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH)
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 1, circuit 614 (GY/OG), component side and pin 2, circuit 615 (GY/WH), component side.
- Is the resistance greater than 10,000 ohms?
- K13 CHECK CIRCUIT 614 (GY/OG) AND CIRCUIT 615 (GY/WH) FOR LOW RESISTANCE BETWEEN THE CLOCKSPRING AND THE RCM
- Connect: RCM C310a and C310b.
- Disconnect: Clockspring C218a.
- Measure the resistance between clockspring C218a pin 4, circuit 614 (GY/OG) and pin 3, circuit 615 (GY/WH), harness side.
- Is the resistance greater than 10,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- No : REPAIR circuit 614 (GY/OG) and circuit 615 (GY/WH). GO to K39.
- K14 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 3, circuit 607 (LB/OG), harness side and ground; and between RCM C310a pin 4, circuit 616 (PK/BK), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
- K15 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 1 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 air bag module C256a pin 1, circuit 607 (LB/OG), harness side and ground; and between passenger air bag module C256a pin 2, circuit 616 (PK/BK), harness side and ground.
- Are the voltages less than 0.2 volt?
- K16 CHECK CIRCUIT 607 (LB/OG) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 3, circuit 607 (LB/OG), harness side and passenger air bag module C256a circuit 607 (LB/OG), harness side.
- Is the resistance less than 0.5 ohm?
- K17 CHECK CIRCUIT 616 (PK/BK) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 4, circuit 616 (PK/BK), harness side and passenger air bag module C256a circuit 616 (PK/BK), harness side.
- Is the resistance less than 0.5 ohm?
- K18 CHECK CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK) FOR LOW RESISTANCE BETWEEN THE PASSENGER AIR BAG MODULE AND THE RCM
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 1 Restraint System Diagnostic Tool.
- Measure the resistance between passenger air bag module C256a circuit 607 (LB/OG), harness side and circuit 616 (PK/BK), harness side.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to K37.
- No : GO to K19.
- K19 MEASURE THE RESISTANCE BETWEEN RCM CIRCUIT 607 (LB/OG) AND CIRCUIT 616 (PK/BK)
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 3, circuit 607 (LB/OG), component side and pin 4, circuit 616 (PK/BK), component side.
- Is the resistance greater than 10,000 ohms?
- K20 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: RCM C310a and C310b.
- Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
- Yes : GO to K37.
- No : GO to K21.
- K21 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218a
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and ground; and between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- 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 1516 (YE/WH) or circuit 1517 (RD/OG). GO to K39.
- K22 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Driver Air Bag Module Squib 2 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 air bag module squib 2 electrical connector, circuit 1516 (YE/WH), harness side and ground; and between driver air bag module squib 2 electrical connector, circuit 1517 (RD/OG), harness side and ground.
- Are the voltages less than 0.2 volt?
- Yes : GO to K37.
- No : GO to K23.
- K23 CHECK CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE CLOCKSPRING
- Key in OFF position.
- Disconnect: Clockspring C218a.
- Key in ON position.
- Measure the voltage between clockspring C218a pin 2, circuit 1516 (YE/WH), harness side and ground; and between clockspring C218a pin 1, circuit 1517 (RD/OG), harness side and ground.
- Are the voltages less than 0.2 volt?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- 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 1516 (YE/WH) or circuit 1517 (RD/OG). GO to K39.
- K24 CHECK CIRCUIT 1516 (YE/WH) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and the driver air bag module squib 2 electrical connector, circuit 1516 (YE/WH), harness side.
- Is the resistance less than 0.5 ohm?
- Yes : GO to K26.
- No : GO to K25.
- K25 CHECK CIRCUIT 1516 (YE/WH) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218a.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), harness side and the clockspring C218a pin 2, circuit 1516 (YE/WH), harness side.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- No : REPAIR circuit 1516 (YE/WH). GO to K39.
- K26 CHECK CIRCUIT 1517 (RD/OG) FOR AN OPEN BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and the driver air bag module squib 2 electrical connector, circuit 1517 (RD/OG), harness side.
- Is the resistance less than 0.5 ohm?
- Yes : GO to K37.
- No : GO to K27.
- K27 CHECK CIRCUIT 1517 (RD/OG) FOR AN OPEN BETWEEN THE RCM AND THE CLOCKSPRING
- Disconnect: Clockspring C218a.
- Measure the resistance between RCM C310a pin 6, circuit 1517 (RD/OG), harness side and clockspring C218a pin 1, circuit 1517 (RD/OG), harness side.
- Is the resistance less than 0.5 ohm?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- No : REPAIR circuit 1517 (RD/OG). GO to K39.
- K28 CHECK FOR LOW RESISTANCE ON CIRCUITS 1516 (YE/WH) AND 1517 (RD/OG) BETWEEN THE RCM AND THE DRIVER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Driver Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Measure the resistance between the driver air bag module squib 2 electrical connector, circuit 1516 (YE/WH), harness side and circuit 1517 (RD/OG), harness side.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to K37.
- No : GO to K29.
- K29 MEASURE THE RESISTANCE BETWEEN THE RCM CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG)
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 5, circuit 1516 (YE/WH), component side and pin 6, circuit 1517 (RD/OG), component side.
- Is the resistance greater than 10,000 ohms?
- K30 CHECK FOR LOW RESISTANCE ON CIRCUIT 1516 (YE/WH) AND CIRCUIT 1517 (RD/OG) BETWEEN THE DRIVER AIR BAG MODULE AND THE CLOCKSPRING
- Connect: RCM C310a and C310b.
- Disconnect: Clockspring C218a.
- Measure the resistance between clockspring C218a pin 1, circuit 1517 (RD/OG), harness side and pin 2, circuit 1516 (YE/WH), harness side.
- Is the resistance greater than 10,000 ohms?
- Yes : INSTALL a new clockspring. REFER to CLOCKSPRING . GO to K39.
- No : REPAIR circuit 1516 (YE/WH) and circuit 1517 (RD/OG). GO to K39.
- K31 CHECK CIRCUIT 1518 (BK/WH) AND CIRCUIT 1519 (LG/RD) FOR A SHORT TO GROUND BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 13, circuit 1518 (BK/WH), harness side and ground; and between RCM C310a pin 14, circuit 1519 (LG/RD), harness side and ground.
- Are the resistances greater than 1,000,000 ohms?
- K32 CHECK CIRCUIT 1518 (BK/WH) AND CIRCUIT 1519 (LG/RD) FOR A SHORT TO VOLTAGE BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 2 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 air bag module C256b pin 1, circuit 1518 (BK/WH), harness side and ground; and between passenger air bag module C256b pin 2, circuit 1519 (LG/RD), harness side and ground.
- Are the voltages less than 0.2 volt?
- K33 CHECK CIRCUIT 1518 (BK/WH) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 13, circuit 1518 (BK/WH), harness side and passenger air bag module C256b circuit 1518 (BK/WH), harness side.
- Is the resistance less than 0.5 ohm?
- K34 CHECK CIRCUIT 1519 (LG/RD) FOR AN OPEN BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Measure the resistance between RCM C310a pin 14, circuit 1519 (LG/RD), harness side and passenger air bag module C256b circuit 1519 (LG/RD), harness side.
- Is the resistance less than 0.5 ohm?
- K35 CHECK FOR LOW RESISTANCE ON CIRCUIT 1518 (BK/WH) AND CIRCUIT 1519 (LG/RD) BETWEEN THE RCM AND THE PASSENGER AIR BAG MODULE
- Key in OFF position.
- Depower the system. Refer to SUPPLEMENTAL RESTRAINT SYSTEM SRS DEPOWERING AND REPOWERING .
- Disconnect: Passenger Air Bag Module Squib 2 Restraint System Diagnostic Tool.
- Measure the resistance between passenger air bag module C256b circuit 1519 (LG/RD), harness side and circuit 1518 (BK/WH), harness side.
- Is the resistance greater than 10,000 ohms?
- Yes : GO to K37.
- No : GO to K36.
- K36 MEASURE THE RESISTANCE BETWEEN THE RCM CIRCUIT 1518 (BK/WH) AND CIRCUIT 1519 (LG/RD)
- Disconnect: RCM C310a and C310b.
- Measure the resistance between RCM C310a pin 13, circuit 1518 (BK/WH), component side and pin 14, circuit 1519 (LG/RD), component side.
- Is the resistance greater than 10,000 ohms?
- Yes : REPAIR circuit 1518 (BK/WH) and circuit 1519 (LG/RD). GO to K39.
- No : GO to K37.
- K37 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 B2293/Record All Flagged Faults.
- Was DTC B2293 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 K39.
- 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 K39.
- K38 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 air bag module:
- Remove the driver air bag module. Refer to DRIVER AIR BAG MODULE .
- Connect restraint system diagnostic tools 418-F395 (2 required) to the driver air bag module squib 1 and squib 2 connectors.
- If the flagged fault was reported for the passenger air bag module:
- Disconnect the passenger air bag module C256a and C256b.
- Connect restraint system diagnostic tools 418-F395 (2 required) to passenger air bag module C256a and C256b.
- 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 B2293/Record All Flagged Faults.
- Was the DTC B2293 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 air bag module connector. REPAIR any intermittent concerns found.
If an intermittent concern was found and repaired, GO to K39.
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 air bag module squib 1 (D___ABAG) with a short to ground (STG) fault, GO to K3.
For driver air bag module squib 1 (D___ABAG) with a short to battery (STB) fault, GO to K5.
For driver air bag module squib 1 (D___ABAG) with an open circuit (O___CIR) fault, GO to K7.
For driver air bag module squib 1 (D___ABAG) with a low resistance (LOWERS) fault, GO to K11.
For passenger air bag module squib 1 (P___ABAG) with a short to ground (STG) fault, GO to K14.
For passenger air bag module squib 1 (P___ABAG) with a short to battery (STB) fault, GO to K15.
For passenger air bag module squib 1 (P___ABAG) with an open circuit (O___CIR) fault, GO to K16.
For passenger air bag module squib 1 (P___ABAG) with a low resistance (LOWERS) fault, GO to K18.
For driver air bag module squib 2 (D___ABAG2) with a short to ground (STG) fault, GO to K20.
For driver air bag module squib 2 (D___ABAG2) with a short to battery (STB) fault, GO to K22.
For driver air bag module squib 2 (D___ABAG2) with an open circuit (O___CIR) fault, GO to K24.
For driver air bag module squib 2 (D___ABAG2) with a low resistance (LOWERS) fault, GO to K28.
For passenger air bag module squib 2 (P___ABAG2) with a short to ground (STG) fault, GO to K31.
For passenger air bag module squib 2 (P___ABAG2) with a short to battery (STB) fault, GO to K32.
For passenger air bag module squib 2 (P___ABAG2) with an open circuit (O___CIR) fault, GO to K33.
For passenger air bag module squib 2 (P___ABAG2) with a low resistance (LOWERS) fault, GO to K35.
- 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 K39.
- K39 CHECK FOR ADDITIONAL DTCs
- Refer to the continuous DTCs recorded during Step K1.
- Were any continuous DTCs retrieved during Step K1 ?
- 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.