Reading and Clearing Diagnostic Trouble Codes
SELF-DIAGNOSIS FUNCTIONDiagnosis Description
SELF-DIAGNOSIS SYSTEM
The self-diagnosis system is built into the front air control to quickly locate the cause of malfunctions.
SELF-DIAGNOSIS FUNCTION
The self-diagnosis system diagnosis sensors, door motors, blower motor, etc. by system line. Refer to applicable sections (items) for details. Shifting from normal control to the self-diagnosis system is accomplished by starting the engine (pressing the ignition switch to the ON position) and pressing OFF switch for at least 5 seconds. The OFF switch must be pressed within 10 seconds after starting the engine (ignition switch is pressed to the ON position). This system will be canceled by either pressing AUTO switch or pressing the ignition switch OFF. Shifting from one step is accomplished by means of turning temperature control dial (LH side), as required.
Shifting from STEP-5 to AUXILIARY MECHANISM is accomplished by turning the LH temperature control dial clockwise or counterclockwise.
CONFIRMATION METHOD
Step 1:
Step 1 (Continued)-7:
Step 7 (Continued)-10:
Step 10 (Continued)-12:
Step 12 (Continued)-13:
Auxiliary Mechanism Trimmers
Refer to HAC-6, "Auxiliary Mechanism Trimmers". Inspection and Adjustment