- 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 See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and Relearning/SRS Unit Update,
and retest.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to ON (II), then wait for 10 seconds.
3. Check for DTCs with the HDS.
Is DTC 31-8x indicated?
YES -
Go to step 4.
NO -
Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. 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. Disconnect the floor wire harness 2P connector (A) from the driver's side airbag (B).
7. Connect the SRS inflator simulator (2 Ohms connectors) and simulator lead L to the floor wire harness.
8. Reconnect the negative cable to the battery.
9. Clear the DTCs with the HDS.
10. Check for DTCs with the HDS.
Is DTC 31-8x indicated?
YES -
Go to step 11.
NO -
Short to power in the driver's side airbag inflator; replace the driver's side airbag See: Restraints and Safety Systems/Air Bag Systems/Air
Bag/Service and Repair/Removal and Replacement/Side Airbag Replacement, then clear the DTC.?
11. Turn the ignition switch to LOCK (0).
12. Disconnect the negative cable from the battery, then wait at least 3 minutes.
13. Disconnect SRS unit connector B (39P) from the SRS unit.
14. Disconnect the SRS inflator simulator from the SRS simulator lead. Do not disconnect the simulator lead from the floor wire harness 2P
connector.
15. Reconnect the negative cable to the battery.
