12-3x
SRS DTC Troubleshooting: 12-3x, 12-6x
DTC 12-3x ("x" can be 0 thru 9 or A thru F):
Short to Another Wire or Decreased Resistance in the Front Passenger's Airbag First Inflator
DTC 12-6x ("x" can be 0 thru 9 or A thru F):
Short to Another Wire or Decreased Resistance in the Front Passenger's Airbag Second Inflator
Special Tools Required
- SRS Inflator Simulator 07SAZ-TB4011A
- SRS Simulator Lead J 070AZ-SNAA100
- SRS Short Canceller 070AZ-SAA0100
NOTE: Before doing this troubleshooting procedure, review SRS Precautions and Procedures Service and Repair, General Troubleshooting Information Reading and Clearing Diagnostic Trouble Codes, and Battery Terminal Disconnection and Reconnection Procedures.
1. Clear the DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
3. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.
Is DTC 12-3x or 12-6x indicated?
YES -
Go to step 4.
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures Reading and Clearing Diagnostic Trouble Codes. If another DTC is indicated, troubleshoot the DTC. �
4. Turn the ignition switch to LOCK (0).
5. Disconnect the negative cable from the battery, then wait at least 3 minutes.
6. Remove the glove box Glove Box Removal/Installation.
7. Disconnect the front passenger's airbag inflator 4P connector (A) from the dashboard wire harness.
8. Connect the terminals of SRS simulator lead J to the SRS inflator simulator (2 Ohms connectors), and then connect the SRS simulator lead J to the dashboard wire harness.
9. Reconnect the negative cable to the battery.
10. Clear the DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.
11. Turn the ignition switch to ON (II), then wait for 10 seconds.
12. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.
Is DTC 12-3x or 12-6x indicated?
YES -
Go to step 13.
NO -
Short to another wire in the front passenger's airbag first or second inflator; replace the front passenger's airbag Front Passenger's Airbag Replacement, then clear the DTC.�
13. Turn the ignition switch to LOCK (0).
14. Disconnect the negative cable from the battery, then wait at least 3 minutes.
15. Disconnect SRS unit connector A (28P) from the SRS unit Service and Repair.
16. Disconnect the SRS inflator simulator from the SRS simulator lead J. Do not disconnect the SRS simulator lead J from the dashboard wire harness 4P connector.
17. Connect the SRS short cancellers (070AZ-SAA0100) to SRS unit connector A (28P) terminals No. 9 and No. 10 and terminals No. 3 and No. 4 Service and Repair.
18. Measure the resistance of the SRS simulator lead J black and red terminals respectively. There should be an open circuit or at least 1 MOhms.
Is the resistance as specified?
YES -
Faulty SRS unit or poor connection at SRS unit connector A (28P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit SRS Unit Replacement. If the DTC does not clear, replace the harness.�
NO -
Short to another wire in the dashboard wire harness; replace the dashboard wire harness, then clear the DTC.�