Engines / Diesel / EDC 17 UDS general / Zero detection of SRC additive level - AdBlue CFFx

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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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Conditions:
- actual additive volume = MAX
- engine speed = X rpm
- the vehicle must stand on even ground

X)
Connect via OBD protocol and delete the error memory

X)
connect with the control unit XX - engine

delete error memory

XX - Basic settings

select item in menu: IDEXXXXXX-Zero detection of SRC additive level

Start

wait XX s

desired condition: Successfully completed

Stop

X)
do a test drive

observe the occupation safety rules when taking a test drive with connected diagnostics tester

test drive - Conditions:

- cruise control = OFF
- speed = XX - XXX km/h - Constant!
- engine speed = XXXX rpm - XXXX rpm
- engine temperature = XX°C

desired condition: system indicator light SCR = off

end the test drive

further, do: Test: Reducing agent SCR - Efficiency

End of test

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