Reading Diagnostic Trouble Codes

How to Retrieve a DTC

The Heater Control Panel has a self-diagnosis function. To run the self-diagnosis function, do the following:

1. Turn the fan switch OFF.
2. Press the recirculation control switch and the rear window defogger switch.




3. While holding the both switches down, turn the ignition switch ON (II), then release the both switches. The recirculation indicator and the rear window defogger indicator come on. The recirculation indicator goes off 2 seconds later and the A/C indicator comes on (if so equipped), then the self-diagnosis will begin. About 10 seconds later, the self-diagnosis will finish and the A/C indicator goes off.
- If any trouble is found, the recirculation indicator blinks the diagnostic trouble code (DTC) to indicate a faulty circuit or component.
- If the system is OK, the recirculation indicator stays off.