B0001-2B

B0001-2B-DRIVER FRONTAL SQUIB 1 - WIRES SHORTED TOGETHER

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 (8443A) 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 connector.

- When Monitored:
The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 500 ms thereafter while the ignition is in on.

- Set Condition:
This DTC sets when the ORC detects both circuits of the same squib are shorted together for more than 2.5 seconds. This DTC transitions from active to stored when the module sees a recovery from a shorted together condition for greater than 2.5 seconds.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Restraints System Pre-Diagnostic Procedure .

1.

NOTE: The use of a approved special tool or Digital Multimeter such as a Fluke Meter that will not apply more than 20 milliamperes to a circuit are the only measurement tools to be used.

NOTE: Probing of the circuit cavities at the ORC module C1-A, C1-B, or C2-A ORC module body harness connectors is only to be done with a approved test lead from the Test Leads, Dedicated Kit 10159, test lead 10159-6. (10159)Or a comparable test lead to prevent vehicle wiring harness connector damage during diagnostic procedures.
DETERMINE ACTIVE OR STORED DTC

NOTE: Make sure the battery is fully charged.

1. Select Active or Stored DTC.

Is the DTC active or stored?

ORC - ACTIVE DTC

- Go To 2

ORC - STORED DTC

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Restraints System Intermittent Condition Test.

2. CHECK FOR SHORTED SQUIB CIRCUITS IN DRIVER 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 Driver Airbag Squib harness connectors.

WARNING: Do not place an intact undeployed airbag face down on a hard surface, the airbag will propel 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 (8443A) and the (8443-8) to the Driver Airbag Squib harness connectors.If the vehicle is equipped with the standard key ignition, follow this ignition on warning.

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.
If the vehicle is equipped with the keyless ignition, follow this ignition on warning.

WARNING: Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. 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 DTCs.

Does the scan tool display: B0001-2B-DRIVER FRONTAL SQUIB 1 - WIRES SHORTED TOGETHER?

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. Driver Air Bag - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

3. CHECK CLOCKSPRING SQUIB CIRCUITS FOR A SHORT TOGETHER

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 (8443A) and the (8443-54) from the Driver Airbag Squib harness connectors.
2. Remove the Steering Control Module from the steering column. Steering Column Module - Removal.
3. Disconnect the Steering Control Module C1 harness connector.

NOTE: Check connectors - Clean and repair as necessary.

4. With the Steering Control Module Connector attached to the steering column, connect the S (8443A) and the (8443-54) to the Steering Control Module C1 harness connector.If the vehicle is equipped with the standard key ignition, follow this ignition on warning.

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.
If the vehicle is equipped with the keyless ignition, follow this ignition on warning.

WARNING: Disconnect the 12-volt battery wait two minutes before proceeding, remove the ORC fuses, connect the 12-volt battery, wait two minutes before proceeding. Cycle the ignition to the On position, then reconnect the ORC fuses. Wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

5. With the scan tool, read the active ORC DTCs.

Does the scan tool display: B0001-2B-DRIVER FRONTAL SQUIB 1 - WIRES SHORTED TOGETHER?

Yes

- Go To 4

No

- NOTE: The clockspring is part of the internals of the Steering Column Control Module (SCCM). The replacement of the SCCM is required to replace the clockspring.

- 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 Steering Column Control Module (SCCM). Steering Column Module - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

4. CHECK (R43) DRIVER SQUIB 1 LINE 2 CIRCUIT FOR A SHORT TO (R45) DRIVER SQUIB 1 LINE 1 CIRCUIT