Defroster vent flap actuator motor, function - GF83.10-P-2175-01GI
Function
Pressing the defroster button (
) on the AAC push-button control module actuates the defroster vent flap actuator motor (M2/8) via the air conditioner bus. The defroster vent flap actuator motor (M2/8) controls the defroster nozzle flaps, which adopt the following positions, according to requirements:
Defrost function
Defroster nozzle flap open 100 %.
System switched off
Defroster nozzle flap open 100 % (This limp-home capability ensures that the windshield will not fog up even when a malfunction has occurred)
Defroster nozzle flap control via the push-button control module
(Clock type switch setting of air distribution switch)
| 1 o'clock | 2 o'clock | 3 o'clock | 4 o'clock | 5 o'clock | 6 o'clock |
|---|---|---|---|---|---|
| 85% | 68% | 50% | 32% | 17% | 0% |
| 7 o'clock | 8 o'clock | 9 o'clock | 10 o'clock | 11 o'clock | 12 o'clock |
| 0 % | 0 % | 0 % | 32 % | 70 % | 100 % |
If a problem exists, it is possible to retrieve and verify the defined end positions by means of the diagnosis assistant system (DAS) (valuation trip).
After replacement of an actuator motor it is necessary for an adjustment run to be performed using the diagnosis assistant system (DAS), i.e. the end positions flap OPEN and SHUT are defined and retained.