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Home >> BMW >> 2012 >> X1 >> Repair and Diagnosis >> External Pages >> Different car >> Section 845 (Functional Descriptions - F25 - Cooling System, Engine Performance) >> Engine Performance - Functional Description >> Throttle actuator (Ver.1) >> Functional description
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Functional description

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The DDE control unit opens and closes the throttle valve actuator electrically. The throttle valve's precise current position must be registered at all times to as a condition for optimal control. This function is discharged by the throttle-valve sensor, which provides contactless monitoring of the throttle valve's position within the throttle-valve actuator.

Fig 1: Identifying Throttle Actuator, Valve And Pin Plug Connection
G09910285Courtesy of BMW OF NORTH AMERICA, INC.
Item Explanation
1 Throttle actuator
2 Throttle valve
3 five-pin plug connection

When no power is being applied spring force holds the throttle valve open within the throttle-valve actuator.