B1B01
B1B01-DRIVER AIRBAG SQUIB 1 CIRCUIT HIGH
For a complete wiring diagram, refer to the Wiring Information Electrical Diagrams.
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 Kit 8443 in the tests below substitutes a suspect squib with a known good component. The use of the SRS Load Tool Adapter provides a test point as well as a method for opening the shorting bar connections within the harness connector.
- When Monitored:
With the ignition on, the ORC monitors the voltage on the Driver Squib 1 circuits.
- Set Condition:
The ORC has detected voltage on Driver Squib 1 circuits.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure.
1. DETERMINE ACTIVE OR STORED DTC
NOTE: Ensure the battery is fully charged.
1. Turn the ignition on.
2. With the scan tool, read the active Occupant Restraint Controller DTCs.
Does the scan tool display active: B1B01-DRIVER AIRBAG SQUIB 1 CIRCUIT HIGH?
Yes
- Go To 2
No
- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. . Restraints System Intermittent Condition Test
2. DRIVER AIRBAG SHORTED
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 Driver Airbag connector(s).
WARNING: Do not place an intact undeployed airbag face down on a hard surface, the airbag propels into the air if accidentally deployed. Failure to follow these instructions may result in possible serious or fatal injury.
NOTE: Check connectors - Clean and repair as necessary.
2. Connect the SRS Load Tool Kit 8443 and the SRS Load Tool Jumper 8443-8 to the Driver Airbag harness connectors.
WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.
3. With the scan tool, read the active Occupant Restraint Controller DTCs.
Does the scan tool display active: B1B01-DRIVER AIRBAG SQUIB 1 CIRCUIT HIGH 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 Driver Airbag.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
3. CLOCKSPRING SQUIB CIRCUITS SHORT TO BATTERY
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 Jumper 8443-8 from the Driver Airbag harness connectors.
2. Disconnect the Clockspring C2 harness connector.
NOTE: Check connectors - Clean and repair as necessary.
3. Connect the 8443 Load Tool and the 8443-19 Jumper to the Clockspring C2 harness connector.
WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.
4. With the scan tool, read the active Occupant Restraint Controller DTCs.
Does the scan tool display active: DRIVER AIRBAG SQUIB 1 CIRCUIT SHORT TO BATTERY 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.
- Replace the Clockspring.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
4. (R43) DRIVER SQUIB 1 LINE 2OR (R45) DRIVER SQUIB 1 LINE 1 CIRCUITS SHORTED TO BATTERY
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 Kit 8443 and SRS Load Tool Jumper 8443-19 from the Clockspring connector.
2. Disconnect the ORC harness connectors.
NOTE: Check connectors - Clean and repair as necessary.
3. Connect the SRS Load Tool Adapter 8443-25 to the ORC harness connectors.
WARNING: Turn the ignition on, then reconnect the 12-volt battery. Failure to follow these instructions may result in possible serious or fatal injury.
4. Measure the voltage on the (R43) Driver Squib 1 Line 2 cavity 3 and (R45) Driver Squib 1 Line 1 cavity 4 circuits between the Clockspring C2 harness connector and ground.
Is there any voltage present?
Yes
- 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 (R43) and (R45) Driver Squib circuits shorted to Battery
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.
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.
- WARNING: If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.
- Replace the Occupant Restraint Controller.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.