ML 500 (163.175) V8-5.0L (113.965) (2003)
GF83.10-P-2170-01GI Blower Motor Function
GF83.10-P-2170-01GI Blower Motor Function
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with CODE (580a) Automatic air conditioning
Function
The AAC pushbutton control module (N22) passes a control voltage of 0 - 6 V to the blower regulator (A32n1) via the AC bus. Depending on the
control voltage which is present, this then regulates the blower motor (A32m1) operating voltage of 0 - 12 V. This facilitates blower speed control of 0 -
100 %.
The blower motor actuation (operating voltage) is influenced by the following factors:
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Blower power setting manual or AUTO
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Operating functions:
Air distribution
AC OFF mode
Residual engine heat mode (actuation limited to 5 V)
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Mode status (heating, cooling)
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Coolant temperature
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Vehicle speed
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Fresh air/recirculation flap setting
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Flap positions
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Terminal 15 (blower ON), starter running (blower OFF)
GF83.10-P-2170GI Blower Motor Location/Task/Design/Function
GF83.10-P-2170GI Blower Motor Location/Task/Design/Function
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with CODE (580a) Automatic air conditioning