Reading Diagnostic Trouble Codes

The SRS indicator light indicates the DTC by the number of blinks when the SCS service connector is connected to the service check connector.





1. With the ignition switch OFF, connect the SCS service connector to the service check connector.
2. Turn the ignition switch ON (II). The SRS indicator light comes on for about twelve seconds and goes off. Then it will indicate the DTC:
- The DTC consists of a main code and a sub-code.
- Including the most recent problem, up to three different malfunctions can be indicated.
- In case of a continuous failure, the DTC will be indicated repeatedly (see example [1] below).
- In case of an intermittent failure, the SRS indicator light will indicate the DTC one time, then it will stay on (see example [2] below).
- If both a continuous and an intermittent failure occur, both DTCs will be indicated as continuous failures.
- In case the system is normal (no DTC), the SRS indicator light will start blinking continuous short blinks (see example [3]).





Examples of DTC Indications

If there was a malfunction, but it doesn't recur, it will be stored in the memory as an intermittent failure, and the SRS indicator light comes on.

After checking the DTC, troubleshoot as follows:
1. Record the DTC.
2. Remove the SCS service connector from the service check connector.
3. Erase the DTC memory.
4. With the shift lever in neutral, turn the ignition switch ON (II), and let the engine idle.





5. Connect the SCS service connector to the service check connector. The SRS indicator light will blink continuous short blinks.





6. Shake the wire harness and the connector, and/or take a test drive (quick acceleration, quick braking, cornering) to find the cause of the intermittent failure. If the problem recurs, the SRS indicator light will stop blinking and stay on.
7. If you can't duplicate the intermittent failure, the system is OK at this time. Disconnect the SCS service connector.