Engines / Petrol / MED 17.5.21 UDS general / Reducing pressure in Rail

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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

observe occupation safety rules when handling fuel

connect with the control unit XX - engine

XX - Security access

enter value XXXXX

Start

XX - Basic settings

select item in menu: IDEXXXXX - Reducing pressure in Rail

activate default settings

follow the diagnostics instructions

desired condition:

•         Successfully completed
•         engine speed = X rpm

XX - end of communication

switch-off the ignition

End of test

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