Operation CHARM: Car repair manuals for everyone.

Symptom Troubleshooting




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

SRS indicator stays on, but no DTCs are stored

NOTE: Before doing this troubleshooting procedure, check the battery is sufficiently charged. If the battery is low, SRS indicator stays on.

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

Does the MIL come on?
YES - Check for a PGM-FI System DTC and troubleshoot as necessary. MIL Circuit Troubleshooting

NO - Go to step 2.


2. Connect the HDS to the data link connector located under driver's side of the dashboard.

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

4. Read the DTC. Initial Inspection and Diagnostic Overview

Are any SRS DTCs indicated?
YES - Troubleshoot the SRS DTC.

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 B1187 indicated?
YES - Go to the DTC B1187 troubleshooting. B1187

NO - Faulty gauge control module; replace the gauge control module. Gauge Control Module Replacement


7. Does the gauge self-diagnostic test. Initial Inspection and Diagnostic Overview

Does the SRS indicator flash?
YES - Go to step 8.

NO - Faulty gauge control module; replace the gauge control module. Gauge Control Module Replacement


8. Turn the ignition switch to LOCK (0). Disconnect the negative cable from the battery, then wait at least 3 minutes.

9. Disconnect SRS unit connector A (28P) from the SRS unit. Technician Safety Information

10. Measure the resistance between SRS unit connector A (28P) terminal No. 5 and body ground. 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

NO - Short in the dashboard wire harness; replace the dashboard wire harness.