DTC B0001-13: Open or Increased Resistance in the Driver's Airbag First Inflator; DTC B0002-13: Open or Increased Resistance in the Driver's Airbag Second Inflator
Special Tools Required
SRS Inflator Simulator 07SAZ-TB4011A
SRS Simulator Lead J 070AZ-SNAA100
NOTE:
- Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct part number, and that they were properly installed .
- Before doing this troubleshooting procedure, review SRS Precautions and Procedures , General Troubleshooting Information , and 12 Volt Battery Terminal Disconnection and Reconnection .
- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software , and retest.
| DTC Description | DTC |
|---|---|
| B0001-13 Open or increased resistance in the driver's airbag first inflator | |
| B0002-13 Open or increased resistance in the driver's airbag second inflator |
DTC (SRS)
- 1. Problem verification:
- 1. Clear the DTCs with the HDS .
- 2. Turn the vehicle to the ON mode, then wait for 10 seconds.
- 3. Check for DTCs with the HDS .
DTC Description DTC B0001-13 Open or increased resistance in the driver's airbag first inflator B0002-13 Open or increased resistance in the driver's airbag second inflator Is DTC B0001-13 or B0002-13 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures . If another DTC is indicated, troubleshoot the DTC.
- 2. Driver's airbag inflator check:
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
- 3. Remove the access panel (A) from the steering wheel, then disconnect the driver's airbag inflator 4P connector (B) on the cable reel harness.
- 4. Connect the terminals of SRS simulator lead J to the SRS inflator simulator (2 Ω connectors), then connect SRS simulator lead J to the driver's airbag inflator 4P connector on the cable reel harness.
- 5. Reconnect the negative cable to the 12 volt battery.
- 6. Clear the DTCs with the HDS .
- 7. Turn the vehicle to the ON mode, then wait for 10 seconds.
- 8. Check for DTCs with the HDS .
DTC Description DTC B0001-13 Open or increased resistance in the driver's airbag first inflator B0002-13 Open or increased resistance in the driver's airbag second inflator Is DTC B0001-13 or B0002-13 indicated?
YES
Go to step 3.
NO
Open in the driver's airbag first inflator; replace the driver's airbag , then clear the DTC.
- 3. Cable reel check:
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
- 3. Remove the column covers .
- 4. Disconnect cable reel connector B (4P) on the dashboard wire harness.
- 5. Connect the terminals of SRS simulator lead J to the SRS inflator simulator (2 Ω connectors), then connect SRS simulator lead J to cable reel connector B (4P) on the dashboard wire harness.
- 6. Reconnect the negative cable to the 12 volt battery.
- 7. Clear the DTCs with the HDS .
- 8. Turn the vehicle to the ON mode, then wait for 10 seconds.
- 9. Check for DTCs with the HDS .
DTC Description DTC B0001-13 Open or increased resistance in the driver's airbag first inflator B0002-13 Open or increased resistance in the driver's airbag second inflator Is DTC B0001-13 or B0002-13 indicated?
YES
Go to step 4.
NO
Open in the cable reel; replace the cable reel , then clear the DTC.
- 4. Open wire check (LA1+, LA1-, LA2+, LA2- lines):
- 1. Turn the vehicle to the OFF (LOCK) mode.
- 2. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.
- 3. Disconnect the following connector.
SRS unit connector A (39P) - 4. Disconnect the SRS inflator simulator from SRS simulator lead J. Do not disconnect SRS simulator lead J from cable reel connector B (4P) on the dashboard wire harness.
- 5. Measure the resistance of the test points.
Test condition Vehicle OFF (LOCK) mode Driver's airbag inflator 4P connector (on the cable reel harness): disconnected Cable reel connector B (4P) (on the dashboard wire harness): disconnected SRS unit connector A (39P): disconnected Cable reel connector B (4P) (on the dashboard wire harness): connected to SRS simulator lead J Test point SRS simulator lead J black terminal Test point SRS simulator lead J red terminal Is there 1.0 Ω or less?
YES
The LA1+, LA1-, LA2+, and LA1- wires are OK. Faulty SRS unit or poor connection at SRS unit connector A (39P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit . If the DTC does not clear, replace the dashboard wire harness.
NO
Open in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.
