ML 320 (163.154) V6-3.2L (112.942) (1998)
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)