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B007E-12






B007E-12-DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL - CIRCUIT SHORT TO BATTERY

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 ORC (connected to neither power nor ground) as protection against inadvertent deployment. Use of the Supplemental Restraints System (8443A) in the tests below substitutes a suspect squib with a known good component. The SRS Load Tool (8443-24)provides a test point as well as a method for opening the shorting bar connections within the ORC harness connector.

- When Monitored:
The ORC sends out a 40 mA diagnostic current on each squib voltage supply circuit at power up and every 100 ms thereafter while the ignition is on. The ORC then monitors the data return wire to determine the state of the circuit.

- Set Condition:
This Diagnostic Trouble Code (DTC) sets when the ORC detects a short to voltage on the squib circuit for more than 2.5 seconds. This DTC transitions from active to stored when the ORC sees a recovery from a short to voltage for greater than 2.5 seconds.





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

1. VERIFY ACTIVE DTC

NOTE: Make sure the battery is fully charged.

1. Turn the ignition on.
2. With the scan tool, read ORC DTCs.

Does the scan tool display active B007E-12-DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL - CIRCUIT SHORT TO BATTERY DTC?

Yes

- Go To 2

No

- Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. .

2. CHECK DRIVER SEAT BELT RETRACTOR TENSIONER FOR A 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 Driver Seat Belt Retractor Tensioner harness connector.

NOTE: Check connectors - Clean and repair as necessary.

2. Connect the (8443A) and the (8443-8) to the Driver Seat Belt Retractor Tensioner 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 ORC DTCs.

Does the scan tool display active B007E-12-DRIVER SEATBELT RETRACTOR PRETENSIONER DEPLOYMENT CONTROL - CIRCUIT SHORT TO BATTERY 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 Seat Belt Retractor Tensioner. Seat Belt Retractor - Removal.
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

3. CHECK (R503, R505) DRIVER SEAT BELT RETRACTOR TENSIONER CIRCUITS FOR A 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 (8443A) and the Jumper from the Driver Seat Belt Retractor Tensioner harness connector.
2. Disconnect the ORC harness connectors. Occupant Restraint Controller - Removal.

NOTE: Check connectors - Clean and repair as necessary.

3. Connect the (8443-24) Adaptor to the ORC C1 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.

4. Measure the voltage of the (R505) Driver Seat Belt Retractor Tensioner Line 1 circuit between the (8443-24) connector C1 cavity 1 and ground.
5. Measure the voltage of the (R503) Driver Seat Belt Retractor Tensioner Line 2 circuit between the (8443-24) connector C1 cavity 2 and ground.

Is there any voltage present on either circuit?

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 the Driver Seat Belt Retractor Tensioner circuits with voltage present.
- 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 ORC. Occupant Restraint Controller - Removal
- Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Restraints System Verification Test.

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