Without Scan Tool

LIST OF OPERATION METHODS




By operating each of the A/C control switches as shown in the diagram, it is possible to enter the diagnostic check mode.

INDICATOR CHECK




a. Turn the ignition switch to the ON position while pressing the A/C control AUTO switch and R/F (Recirculation/ Fresh) switch simultaneously.







b. Check that the indicators come on and go off 4 times in succession at 1 second intervals.

HINT:
- After the indicator check is completed, the system enters the DTC mode automatically.
- Press the "OFF" switch to cancel the check mode.



DTC CHECK (SENSOR CHECK)




a. After the indicator check is completed, the system enters the DTC check mode automatically.
b. Read the codes displayed on the panel. Refer to the list of codes when reading the codes. (Trouble codes are output on the temperature display.)




c. If a slower display is desired, press the front DEF switch and change the display in the step operation. Each time the temperature up switch is pressed, the display changes by 1 step.