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Home >> Mercedes Benz >> 2001 >> S600 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- Basic Knowledge -- 215 & 220 Chassis >> Basic Knowledge >> Blower regulator, location/function - GF83.10-P-2103 >> Blower regulator, function - GF83.10-P-2103-01M

Blower regulator, function - GF83.10-P-2103-01M

Function 

With the blower buttons (LOWER TEMPERATUREBLOWER BUTTONRAISE TEMPERATURE ) or in the automatic mode a control voltage (0 - 6V) is transferred from the rear A/C pushbutton control module to the rear blower regulator. The latter then regulates the operating voltage for the rear blower (0 - 12 V) depending on the control voltage present. This provides the control of the blower speed in the range of 0 - 100 %.

In the automatic mode the control voltage for the rear blower control is calculated according to the control voltage for the automatic A/C read in by the CAN bus.

Blower switch position (reading on display) Blower control voltage (manual)
1 segment 1.00 V
2 segment 1.20 V
3 segment 1.50 V
4 segment 1.90 V
5 segment 2.40 V
6 segment 2.90 V
7 segment 6.00 V
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