How to Display and Read Diagnostic Trouble Codes

DTC Indication Pattern:

Self-diagnosis Function
The heater control panel has a self-diagnosis function.

Running the Self-diagnosis Function
Set the mode control dial to the Vent position, and turn the ignition switch ON (II). Within six seconds after turning the ignition switch on, press the recirculation control switch the required number of times depending on the recirculation indicator light status:
- If the indicator light is ON, press the recirculation control switch five times.
- If the indicator light is OFF, press the recirculation control switch six times.

The recirculation indicator light will come on for two seconds, then blink the Diagnostic Trouble Code (DTC) to indicate a faulty component. If no DTC's are found, the indicator light will not blink after the initial two second light.




In case of multiple problems, the recirculation indicator light will indicate only one DTC with the least number of blinks.