Engines / Diesel / 2.0/125kW TDI-PD BMN; BMR; BUY; BUZ / Test of Charge Pressure Controller Position

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Mark	Model	Control unit	Diagnostic operation

Mark

Select a vehicle make or a common group such as Service Intervals, Engines, Transmissions, Immobilizers and Independent Heaters.

Model

Control unit Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Diagnostic operation Select the desired diagnostic procedure.

Diagnostic procedure

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Conditions:
- engine speed = idling
- engine temperature > XX °C

XX - Basic settings group XXX
Start

depress and hold - clutch pedal + accelerator pedal

the control unit increases the engine speed

required values:
field X = ON / OFF (Charge Pressure Controller)
field X = deviation between ON - OFF >= XX mbar

back

upon non--achievement of condition - continue - engine speed = idling

XX - Actuators
select item - Charge Pressure Controller

desired condition
at ON position, the voltage must rise within X seconds to X.XV

upon non--achievement of condition - check component: Charge Pressure Controller - pressure sensor, line - Charge Pressure Controller -> control unit

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