The heater control panel has a self-diagnosis function.
Running the Self-diagnosis Function
1. Turn the ignition switch ON (II).
2. Turn the fan switch OFF, and the recirculation control switch to Recirculate (recirculation indicator comes on).
3. Press and hold the recirculation control switch to Fresh (recirculation indicator goes off). Continue to hold the switch until the recirculation indicator comes on for 2 seconds, then it will blink the Diagnostic Trouble Code (DTC) to indicate a
Resetting the Self-diagnosis Function
Turn the ignition switch OFF to cancel the self-diagnosis function. After completing repair work, run the self-diagnosis function again to make sure that there are no other malfunctions.