Reading Diagnostic Trouble Codes
How to Retrieve a DTCThe climate control unit has a self-diagnosis function. To run the self-diagnosis function, do the following:
1. Turn the fan switch OFF.
2. Press and hold the recirculation control switch and the ECON switch down.
3. Turn the ignition switch ON (II).
4. Release both switches. The recirculation indicator comes on. The recirculation indicator goes off 2 seconds later and the A/C indicator comes on, then the self-diagnosis will begin. About 10 seconds later, the self-diagnosis will finish and the A/C indicator goes off. The recirculation indicator will blink the diagnostic trouble code (DTC) to indicate a faulty component. If no DTCs are found, the indicator will not blink.