Engines / Diesel / EDC 17 UDS general / Test - Dosing of the reducing agent SCR AdBlue

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Mark	Model	Control unit	Diagnostic operation

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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 2x.

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Conditions:
- engine speed = X rpm
- engaged gear = N
- activate the hand brake
- Reducing agent Concentration = OK

Note:
- duration approx XX minutes

connect with the control unit XX - engine

XX - Security access

enter value: XXXXX

Start

XX - Basic settings

select item in drop-down menu:

IDEXXXXX - Test - Dosing of the reducing agent SCR

In the Basic Settings window, click Measured values and select the items you want to visualize.

IDEXXXXX - pressure sensor SCR - actual value
IDEXXXXX - additive pump: excitation
IDEXXXXX-ENGXXXXXX - Flushing valve SCR Bits X-X

TIP! For easier search in the menu, enter the code IDE, ENG or MAS into the "Filter" window

activate default settings (duration approx XX minutes)

required values - if displayed: IDEXXXXX-ENGXXXXXX = XX

IDEXXXXX - pressure sensor SCR = X - X,X bar
IDEXXXXX - additive pump = X - XX%

required values - if displayed: IDEXXXXX-ENGXXXXXX = XX

IDEXXXXX - pressure sensor SCR = X bar

duration approx XX minutes

desired condition:

basic settings: Successfully completed

if values are not achieved, check part:

- Dosing of the reducing agent: Check the leakproofness of the lines
- Dosing of the reducing agent: injector - tightness, Defect
- Dosing of the reducing agent: additive pump - Defect

End of test

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