Manual Description
When air flow is increased, duty ratio of blower motor drive signal gradually increases to prevent a sudden increase in air flow. After this, blower fan drive signal is increased gradually, and blower motor is activated. M The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
Supply to the intake door motor terminal directly, confirm the motor operation by listening the sound or by visually. Check continuity between blower motor harness connector and power transistor harness connector. Check the continuity between the blower motor relay terminal 3 and 5 when the voltage is supplied between terminal 1 and 2.
B Compressor is driven by the magnet clutch which is charged magnetic force by electrified. Check voltage between the ground and the connector on the fuse block side where blower motor relay A was installed. Check that the fan speed or discharge air changes (the discharge air temperature or fan speed varies depending on the ambient temperature, in-vehicle temperature, and set temperature).
Manual Cover
General