Diesel Data: Automotive Repair

SRS Indicator Stays On, But No DTCs Are Stored




SRS Symptom Troubleshooting - SRS indicator stays on, but no DTCs are stored

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

NOTE: Before doing this troubleshooting procedure, make sure the battery is fully charged. If the battery voltage is low, SRS indicator may stay on.

1. Turn the ignition switch to ON (II).

2. Start the engine, and see if the malfunction indicator lamp (MIL) also 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 3.

3. Turn the ignition switch to LOCK (0).

4. Connect the HDS to the data link connector (DLC) Reading and Clearing Diagnostic Trouble Codes.

5. Turn the ignition switch to ON (II).

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

7. Check for DTCs with the HDS.

Are any SRS DTCs indicated?

YES -

Do the SRS DTC troubleshooting.�

NO -

Go to step 8.

8. From the HDS Main Menu, select BODY ELECTRICAL, then select the desired MODE MENU.

9. Check for DTCs with the HDS.

Is DTC B1187 indicated?

YES -

Troubleshoot DTC B1187 B1187.�

NO -

Go to step 10.

10. 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.�