Engines / Petrol / MED 17.5 CAN general / lambda control - switch-off

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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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Note:
- this function makes it possible to determine whether the engine fault arises with or without lambda regulation

Conditions:
- exhaust system - tightness of line - OK
- engine speed = idling or test drive
- engine temperature > XX °C

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

connect with the control unit XX - engine

XX - Basic settings group XXX
activate default settings

required values
field X = OX-Reg- OFF - lambda control = OFF

OFF/ON/next = lambda control = OFF / ON

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