CL 55 AMG (215.374) V8-5.5L SC (113.991) (2004)
Control Module HVAC: Description and Operation
Incremental Adjustment Motor Electronic Control Module
The stepper motor electronics control module controls the following 10 stepper motors on air conditioning box:
Component Identification
Purpose
The 10 actuator motors on the A/C housing are controlled by the stepping motor electronic control module. The switching logic is realized by the
automatic A/C pushbutton control module.
The flap settings are adjusted infinitely from 0% (closed) to 100% (open) by the stepping motor electronic control module according to the position
settings received from the automatic A/C pushbutton control module via the A/C bus.
The electronic flap control completes all adjustments with a resolution of 1 %. It is necessary to realize the following LOOSE function for each flap in
the automatic A/C pushbutton control module so that the actuator motors do not run continuously within the control range.
LOOSE function: Once a position is reached, it is necessary for the air outlet temperature at the center vent to change to such an extent that the next
higher or lower LOOSE value is exceeded or left below before the position is changed again
End values (0%; 100%) are moved to directly.