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Home >> Mercedes Benz >> 1999 >> C43 >> Repair and Diagnosis >> External Pages >> Different car >> Section 35 (Manual A/C-Heater Systems - Ml 320, Ml 430 & Ml 55) >> Description & Operation >> All Activity Module

All Activity Module

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All Activity Module (AAM) receives inputs to determine if specified conditions have been met to allow operation of A/C-heater system. If conditions are met, the AAM will send signals to the A/C compressor, condenser fans relay and the blower motor relay to command or enable operation.