B0109-1B
B0109-1B-FRONT PASSENGER SIDEBAG - CIRCUIT RESISTANCE ABOVE THRESHOLD
Special Tools:
For a complete wiring diagram, refer to the Wiring Information.
Theory of Operation
When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. These circuits are maintained in a "floating" configuration at the module (connected to neither power nor ground) as protection against inadvertent deployment. Use of the SRS Load Tool (8443A) in the tests below substitutes a suspect squib with a known good component. The use of the 56 Way ACM Adapter (8443-25) provides a test point as well as a method for opening the shorting bar connections within the harness connector. The thorax airbag is seat mounted on the outboard side of the seat back frame. The thorax airbag is a single stage device. The thorax side airbags and the side curtain airbags deploy together during an event separate of the front airbags.
- When Monitored:
With the ignition on.
- Set Condition:
The Occupant Restraint Controller (ORC) monitors the resistance of the Right Seat Airbag Squib circuits. If an open or high resistance is detected on the Right Seat Squib circuits for 2.6 seconds the ORC will set this DTC. The DTC will change from Active to Stored status if the fault condition is not detected for 2.6 seconds.
1. DETERMINE ACTIVE OR STORED DTC
NOTE: Make sure that the battery is fully charged.
NOTE: The scan tool, SRS Load Tool (8443A), and DVOM are required to perform the following test.
1. Turn the ignition on.
Select ACTIVE or STORED DTC:
ACTIVE DTC
- Go To 2
STORED DTC
- Go To 6
2. CHECK FOR OPEN SQUIB CIRCUITS IN RIGHT SEAT AIRBAG
WARNING: Turn the ignition off disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Disconnect the Right Seat Airbag harness connector.
WARNING: To avoid serious or fatal injury, do not place an intact uncoupled Seat Squib Airbag face down on a hard surface, the airbag will propel into the air if accidentally deployed.
NOTE: Check connectors - Clean and repair as necessary.
2. Connect the SRS Load Tool (8443A) and the SRS Load Tool Jumper (8443-1) or SRS Load Jumper (8443-8) to the Right Seat Airbag harness connector.
WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
3. With the scan tool, read the active ORC DTC.
Does the scan tool display: B0109-1B-FRONT PASSENGER SIDEBAG - CIRCUIT RESISTANCE ABOVE THRESHOLD - DTC?
Yes
- Go To 3
No
- WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the Right Seat Airbag. Seat Air Bag - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
3. CHECK FOR OPEN RIGHT SEAT AIRBAG SQUIB CIRCUIT IN THE SEAT BACK
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Disconnect the Right Seat Airbag in-line connector (under Right Seat).
NOTE: Check connectors - Clean and repair as necessary.
2. Connect the SRS Load Tool (8443A) and appropriate SRS Load Tool Jumper to the in-line side seat connector body harness.
WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
3. With the scan tool, read the active ORC DTC.
Does the scan tool display: B0109-1B-FRONT PASSENGER SIDEBAG - CIRCUIT RESISTANCE ABOVE THRESHOLD - DTC?
Yes
- Go To 4
No
- WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- Repair or replace the Right Seat Airbag wiring harness (Side Airbag Jumper). Open Right Seat Airbag circuits between the in-line connector and the Left Seat Airbag connector.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
4. CHECK (R8) RIGHT SEAT SQUIB 1 LINE 1 CIRCUIT FOR AN OPEN
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Disconnect the SRS Load Tool (8443A) and SRS Load Tool Jumper from the Right Seat Airbag harness connector.
2. Disconnect the ORC harness connectors.
NOTE: Check connectors - Clean and repair as necessary.
NOTE: After disconnecting the ORC module and the ORC module body harness connector, check the ORC module body harness connector shorting bar pin location. The shorting bar pin location should be down and not visible through the larger center holes of the ORC module body harness connector.
3. Connect the 56 Way ACM Adapter (8443-25) to the ORC harness connectors.
4. Measure the resistance of the (R8) Right Seat Squib 1 Line 1 circuit between the Right Seat Airbag connector cavity 2 and the 56 Way ACM Adapter (8443-25) cavity 32-5.
Is the resistance below 1.0 Ohm?
Yes
- Go To 5
No
- Repair or replace the Right Seat Airbag body wiring harness. Open (R8) Right Seat Airbag Squib 1 Line 1 circuit between the in-line (body side) connector and the ORC C2 (32 way) connector.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
5. CHECK (R6) RIGHT SEAT SQUIB 1 LINE 2 CIRCUIT FOR AN OPEN
1. Measure the resistance of the (R6) Right Seat Squib 1 Line 2 circuit between the Right Seat Squib 1 Airbag connector cavity 1 and the 56 Way ACM Adapter (8443-25) cavity 32-6.
Is the resistance below 1.0 Ohm?
Yes
- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the ORC. Occupant Restraint Controller - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
No
- Repair or replace the Right Seat Airbag body wiring harness. Open (R6) Right Seat Airbag Squib 1 Line 2 circuit between the in-line (body side) connector and the ORC C2 (32 way) connector.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
6. CHECKING STORED OR INTERMITTENT CODES
NOTE: Diagnose and repair all active codes before diagnosing stored codes. Refer to the complete list of airbag system diagnostic procedures.
1. With the scan tool, record and erase all Airbag System Module DTCs.
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
2. Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors for chafed, pierced, pinched, and partially broken wires, and for broken, bent, pushed out, corroded, and contaminated terminals. Repair as necessary.
3. Reconnect all disconnected components and harness connectors.
WARNING: Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
4. With the scan tool, monitor for active codes while performing the following:
- Wiggle the wiring harness and connectors of the related airbag circuit.
- Continue the test until either a code becomes active or the problem area is isolated.
5. In the previous steps you have attempted to recreate the conditions responsible for setting the DTC in question/causing the intermittent condition.
Are any ACTIVE DTCs present?
Yes
- Perform the appropriate DTC. Testing and Inspection
No
- No problem found at this time. Erase all codes before returning the vehicle to the customer.