Diagnostic Troubleshooting Flow

Use these steps to plan your diagnostic strategy. If you follow them carefully, you will be sure that you have exhausted all of the possible ways to find a SRS fault.

1. Gather information about the problem from the customer.

2. Verify that the condition described by the customer exists.

3. Check the vehicle for any SRS DTCs.
Reading Diagnostic Trouble Codes

4. If you cannot verify the condition but there are no SRS DTCs, the malfunction is intermittent.

5. If there is a SRS DTC, record the number of the code, then erase the code from vehicle memory using scan tool MB991502.

6. Recreate the SRS DTC set conditions to see if the same SRS DTC will set again.
- If the same SRS DTC sets again, follow the Inspection Chart for Diagnostic Trouble Codes and find the fault.
Diagnostic Trouble Code Descriptions
- If you cannot get the same SRS DTC to set again, the malfunction is intermittent.