When the blower air temperature can not be changed even if the preset temperature is changed, the sensors, the air mixing door control motor and potentiometer or the A/C-ECU may be defective.

• Malfunction of the A/C-ECU

Read diagnosis code by using the MUT-II/III.

Q: Is the diagnosis code set?

YES:  Refer to diagnosis code chart .
NO:  Replace the automatic air conditioner control panel (A/C-ECU).