mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

GF54.21-P-4100GH All-Activity Module, Location/Task/Design/Function|Page 11227 > < GF54.21-P-4100GH All-Activity Module, Location/Task/Design/Function|Page 11225
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Body Control Module: Description and Operation
GF54.21-P-4110-01GH All-Activity Module, Function

GF54.21-P-4110-01GH All-Activity Module, Function

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with CODE (580) Air conditioner or Tempmatic for USA

Function

The all-activity module (N10) checks whether certain conditions for operating the air conditioning (Tempmatic) are met.

It receives the input information from the following devices:

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Refrigerant pressure sensor (B12)

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Coolant temperature sensor via CAN and sends signals to the following components:
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A/C compressor

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Auxiliary fan (M4) via relay (engine 111.977 and 112.942) or

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Engine and AC electric suction fan with integrated control (M4/7) with engine 113.942/981

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Relay (K21) for actuating the air conditioning (Tempmatic)

GF54.21-P-4100GH All-Activity Module, Location/Task/Design/Function|Page 11227 > < GF54.21-P-4100GH All-Activity Module, Location/Task/Design/Function|Page 11225