Without Scan Tool
A/C System Self-diagnosis FunctionDESCRIPTION
The self-diagnostic system diagnoses sensors, door motors, blower motor, etc. Refer to applicable sections (items) for details. Fault codes (if any are present) will be displayed in the ambient temperature display area. Refer to "SELF-DIAGNOSIS CODE CHART".
Self-diagnosis Code Chart:
SELF-DIAGNOSIS CODE CHART