Reading and Clearing Diagnostic Trouble Codes

DESCRIPTION
The self-diagnostic 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-diagnostic system is accomplished by starting the engine (turning the ignition switch ON) 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 turned ON). This system will be canceled by either pressing AUTO switch or turning the ignition switch OFF. Shifting from one step to another is accomplished by means of turning temperature dial, as required.

Additionally shifting from STEP-5 to AUXILIARY MECHANISM is accomplished by means of pushing (fan) UP switch.

Diagnostic Procedure Step 1 - 3:

Diagnostic Procedure Step 4 - 7:

Diagnostic Procedure Step 8:

Diagnostic Procedure Step 9 - 12:

Diagnostic Procedure Step 13 - 14:

Diagnostic Procedure Step 15:

FUNCTION CONFIRMATION PROCEDURE




AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of ±3 °C (±6 °F) between temperature setting (displayed digitally) and temperature felt by driver.
Operating procedures for this trimmer are as follows:
- Begin Self-diagnosis STEP-5 mode.
- Press (fan) UP switch to set system in auxiliary mode.
- Display shows 61 in auxiliary mechanism. It takes approximately 3 seconds.
- Turn the temperature dial as desired. Temperature will change at a rate of 0.5 °C (1.0 °F) each time a dial is turned.

When battery cable is disconnected, trimmer operation is canceled. Temperature set becomes that of initial condition, i.e. 0 °C (0 °F).