Symptom Troubleshooting

SRS Symptom Troubleshooting - SRS indicator does not come on

SRS indicator does not come on

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 Service and Repair.
- 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 Testing and Inspection, and retest.

1. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then wait for 10 seconds.

2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator come on?

YES -

Intermittent failure, the system is OK at this time.

NO -

Go to step 3.

3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode, then wait for 10 seconds.

4. Connect the HDS to the data link connector (DLC).

5. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

6. Make sure the HDS communicates with the vehicle and the SRS unit. If it does not communicate, go to the DLC circuit troubleshooting Testing and Inspection.

7. Do the gauge control module self-diagnostic function Testing and Inspection.

Does the SRS indicator blink?

YES -

Faulty SRS unit; replace the SRS unit Service and Repair.

NO -

Faulty gauge control module; replace the gauge control module Service and Repair.