Reading and Clearing Diagnostic Trouble Codes

A/C System Self-diagnosis Function




DESCRIPTION
The self-diagnostic system diagnosis sensors, door motors, blower motor, etc. by system line. Refer to applicable sections (items) for details. Shifting from usual 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 pressing the temperature switch (driver side), as required.
Additionally shifting from STEP 5 to AUXILIARY MECHANISM is accomplished by means of pressing the top of the (fan) switch.

Function Confirmation Procedure (Steps 1 - 6):

Function Confirmation Procedure (Steps 7 - 9):

Function Confirmation Procedure (Steps 10 - 12):

Function Confirmation Procedure (Step 13):

Function Confirmation Procedure (Step 14):

FUNCTION CONFIRMATION PROCEDURE




AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of -3 degrees C (-6 degrees 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. Refer to "A/C System Self-diagnosis Function".
- Press top of fan control switch to set system in auxiliary mode.
- Display shows 61 in auxiliary mechanism. It takes approximately 3 seconds.
- Press top of temperature switch (driver side) as desired. Temperature will change at a rate of 0.5 degrees C (1.0 degrees F) each time the switch is pressed.

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

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




Operating procedures for this trimmer are as shown:
- Begin Self-diagnosis STEP 5 mode. Refer to "A/C System Self-diagnosis Function".
- Press top of fan control switch to set system in auxiliary mode.
- Display shows 61 in auxiliary mechanism. It takes approximately 3 seconds.
- Press the mode switch 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 shown:
- Begin Self-diagnosis STEP 5 mode. Refer to "A/C System Self-diagnosis Function".
- Press top of fan control switch to set system in auxiliary mode.
- Display shows 61 in auxiliary mechanism. It takes approximately 3 seconds.
- Press the recirculation (REC) and fresh (FRE) switch as desired.