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Home >> BMW >> 2012 >> 335i 2D Convertible, Automatic Trans >> Repair and Diagnosis >> General Information >> OEM General Information >> Functional Descriptions - F25 - Cooling System, Engine Performance >> Cooling System - Functional Description >> Heat management module >> Structure and inner electrical connection

Structure and inner electrical connection

The heat management module is connected via a five-pin plug connection.

The direct current motor is activated by the engine control in both directions via an H-bridge.

Fig 1: Heat Management Module - Circuit Diagram
G10092707Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Heat management module
2 Direct current motor
3 Position sensor
4 Electronic component
CONNECTOR PIN REFERENCE

Pin Explanation
+ Direct current motor activation
- Direct current motor activation
5 V Position sensor voltage supply
SENT Position sensor signal
Kl. 31 Terminal 31 position sensor