Reading and Clearing Diagnostic Trouble Codes

Self-diagnosis Function




DESCRIPTION
The self-diagnostic system diagnosis sensors, door motors, blower motor, etc. by system line. Self-diagnosis is step-1 to 7. There are two ways of changing method during self-diagnosis.
- Switching to self-diagnosis step-1 to 4. Shifting from usual control to the self-diagnostic system is accomplished by starting the engine (turning the ignition switch from OFF to ON) and pressing "A/C" switch for at least 5 seconds. The "A/C" switch must be pressed within 10 seconds after starting the engine (ignition switch is turned ON). This system will be canceled by either pressing intake switch or turning the ignition switch OFF. Shifting from one step to another is accomplished by means of turning fan control dial, as required.
- Switching to self diagnosis step-5 to 7 (Auxiliary mechanism). Shifting from usual control to the self-diagnostic system is accomplished by starting the engine (turning the ignition switch from OFF to ON) and pressing intake switch for at least 5 seconds. The "intake" switch must be pressed within 10 seconds after starting the engine (ignition switch is turned ON). This system will be canceled by either pressing A/C switch or turning the ignition switch OFF. Shifting from one step to another is accomplished by means of turning fan control dial, as required.

Function Confirmation Procedure (Steps 1 - 4):

Function Confirmation Procedure (Steps 5 - 7):

Function Confirmation Procedure (Step 8):

Function Confirmation Procedure (Steps 9 - 10):

FUNCTION CONFIRMATION PROCEDURE




AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of ±3 °C (±6 °F) between temperature setting (Temperature control dial position) and temperature felt by driver.

Operating procedures for this trimmer are as follows:
1. Set temperature at 25 °C (75 °F).
2. Set fan control dial to OFF.
3. Turn ignition switch ON.
4. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned ON.), press intake switch for at least 5 seconds.
5. Turn temperature control dial as desired. temperature will change at a rate of 1 °C (2.0 °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).




AUXILIARY MECHANISM: FOOT POSITION SETTING TRIMMER
Wind distribution ratio in FOOT mode can be set.

Operating procedures for this trimmer are as follows:
1. Set temperature at 25 °C (75 °F).
2. Set fan control dial to AUTO.
3. Turn ignition switch ON.
4. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned ON.), press intake switch for at least 5 seconds.
5. Turn temperature control dial as desired.




AUXILIARY MECHANISM: INLET PORT MEMORY FUNCTION
When ignition key is turned from OFF to ON, inlet port can be set to AUTO or manual.

Operating procedures for this trimmer are as follows:
1. Set fan control dial to 1st-25th speed.
2. Turn ignition switch ON.
3. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned ON.), press intake switch for at least 5 seconds.
4. Press the intake switch as desired.