Engines / Petrol / MED 9.5.10 CAN general / Test - idle stabilization

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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:
- exhaust system - tightness of line = OK
- appliances = OFF
- air-conditioning = OFF
- engine speed = idling
- engine temperature > XX°C (XX - Measured values group XXX field X)

connect with the control unit XX - engine

XX - Measured values group XXX
required values
field X = idling

wait X minutes

XX - Measured values group XXX
required values
field X = XXXXXXXX

xxxxxxxX = engine temperature < XX°C
xxxxxxXx = engine speed < XXXX rpm
xxxxxXxx = throttle valve - closed
xxxxXxxx = Lambda sensor(s) - OK
xxxXxxxx = idle speed switch - OFF
xxXxxxxx = air-conditioning - OFF
xXxxxxxx = catalyst temperature > XXX °C
Xxxxxxxx = number of faults OBD = X

sharply depress - accelerator pedal

permit - accelerator pedal

wait X minutes

XX - Basic settings group XXX
activate default settings

wait XX s

after stabilisation of values

XX - Measured values group XXX
required values
field X = engine speed (actual value)
field X = engine speed (required value)

desired condition: field X = field X

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