Stepping motor, air-mixing flap, LH
Stepping motor, air-mixing flap, LH |
Calibration is performed by pressing the AUTO and OFF buttons. Calibration must be performed if the battery has been disconnected/discharged, if the ACC unit or stepping motor has been changed, or if its position has been changed.
The climate system has three air-mixing flaps, one for the driver's zone and one for the front seat passenger that is linked to the air-mixing flap for the rear seat passengers.
The stepping motor for the left-hand air-mixing flap is supplied with current from pins 25 and 6 (winding 1) and pins 26 and 7 (winding 2) on the ACC unit.
The flap position is set by the control module using the mixed-air temperature sensor for the left-hand side so that the requested mixed-air temperature is achieved.
When OFF, the flap is set to maximum cold.
Diagnostics |
In the event of an open circuit or short circuit, diagnostic trouble code B2490 is generated and 06 is displayed instead of right-hand temperature when calibrating.
If the motor jams, diagnostic trouble code B2496 is generated and 07 is displayed instead of right-hand temperature when calibrating.
If the motor does not have a mechanical contact with the flap, diagnostic trouble code B2495 is set and 08 is displayed instead of right-hand temperature while calibrating.
Diagnostics tool shows 100% at maximum heat and 0% at maximum cold.