Engines / Petrol / MED 17.5.21 UDS general / zeroing learning values

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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

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Conditions:
•         on-board voltage > XXV

Note:
•         For all the car operational time control unit checks values of its emission and driving regulation circuits. If any deviation from saved values is determined, control unit adapts this value and learned values are created.
•         After replacing some emission or driving control components, the learning values of this component must be reset.

This function deletes all the learned values from the unit and new parametrisation may be required on-line via a factory tool!

connect with the control unit XX - engine

XX - Security access

enter value:

XXXXX = function accessible: adaptation, coding, basic settings

Start

XX - Basic settings

select item in drop-down menu: IDEXXXXX - zeroing learning values

Start

follow the diagnostics instructions

required values: Successfully completed

XX - end of communication

switch ignition off for XXs

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