Engines / Diesel / 1.9/74kW TDI-PD AVQ / Test of exhaust recirculation valve

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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

This operation was considered useful 1x.

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Note:
- check component: fuse XX (engine compartment)
- engine speed idling

connect with the control unit XX - engine

XX - Actuators

select item: Exhaust gas recirculation valve (NXX)

Start

physically test the function of the activated component

desired condition: Exhaust gas recirculation valve - active / inactive
required values - intake air volume - fluctuates

if values are not achieved - check component: Exhaust gas recirculation valve, control unit, line

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