Symptom Troubleshooting

SRS Symptom Troubleshooting - SRS indicator stays on, but no DTCs are stored, or cannot be read

SRS indicator stays on, but no DTCs are stored, or cannot be read

NOTE:

- Before doing this troubleshooting procedure, check the battery is sufficiently charged Testing and Inspection.If the battery voltage is low, SRS indicator stays on.
- 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 SRS Unit Update, and retest.

1. Turn the ignition switch to ON (II), and see if the malfunction indicator lamp (MIL) stays on.

Does the MIL stay on longer than 30 seconds?

YES -

Go to the MIL Circuit Troubleshooting MIL Circuit Troubleshooting.�

NO -

Go to step 2.

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

3. Make sure the HDS communicates with the vehicle and the SRS unit. If it does not communicate, troubleshoot the DLC circuit Testing and Inspection.

4. Read the DTC.

Are any SRS DTCs indicated?

YES -

Do the SRS DTC troubleshooting.

NO -

Go to step 5.

5. Select Body Electrical status with the HDS.

6. Check for DTCs in the Gauge Menu with the HDS.

Is DTC U0151 indicated?

YES -

Go to the DTC U0151 troubleshooting U0151.�

NO -

Go to step 7.

7. Do the gauge control module self-diagnostic function Initial Inspection and Diagnostic Overview.

Does the SRS indicator come on?

YES -

Faulty SRS unit; replace the SRS unit SRS Unit Replacement.�

NO -

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