Without Scan Tool

INDICATOR CHECK





(a) Turn the ignition switch on while pressing the A/C control AUTO switch and R/F SW simultaneously.





(b) Check that all the indicators light: up and go off at 1 second intervals 4 times in succession.

HINT:
- After the indicator check is ended, the diagnostic trouble code check begins automatically.
- Press the OFF switch when desiring to cancel the check mode.

DTC CHECK (SENSOR CHECK)





(a) Perform an indicator check. After the indicator check is completed, the system enters the DTC check mode automatically.
(b) Read the DTC displayed on the panel. Refer to Trouble Code Descriptions when reading the DTCs. (DTCs are output at the temperature display.)





If the slower display is desired, press the Driver Side Temp. Control Switch and change it to step operation. Each time the Driver Side Temp. Control switch is pressed, the display changes by 1 step.