How to Display and Read Diagnostic Trouble Codes
How to Retrieve a DTCThe climate control unit has a self-diagnosis function.
Running the Self-diagnosis Function
Turn the ignition switch ON (II) and set the temperature control dial on MAX COOL, then slowly to MAX HOT. After one minute, press the AUTO button and then the OFF button. Continue to hold both buttons down. If there is any abnormality in the system when both buttons are pressed, the temperature indicator will light up the segment (A to N) corresponding to the error. The temperature indicator will then alternate every second between displaying "88" (all segments lit) and the error segment. If there is no abnormality, the segments will not light up.