Engines / Petrol / Magneti Marelli 4HV general / creation of Readiness

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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:
- engine temperature >= XX °C (XX - Measured values group XXX field X)
- catalyst temperature > XXX °C (XX - Measured values group XXX field X)
- parking brake = ON
- gear engaged (P) (automatic transmission)
- on-board voltage > XX V (XX - Measured values group XXX field X)
- appliances = OFF

Note:
- The Readiness Code must be created as the last diagnostics task. Later deletion of the memory could also result in deletion of the created Readiness Code.

connect with the control unit XX - engine

XX - Basic settings group XXX

activate default settings

wait XX s (follow the diagnostics instructions)

required values
field X = ADP-OK

upon achievement of values - continue

Start the engine - engine speed = idling

wait XX s

XX - Measured values group XXX

depress - brake pedal

increase rpm to XXXX rpm

required values (may take several minutes):

field X (Lambda-sensor upstream of catalyst):
xxxxX = lambda control = active
xxxXx = lambda control = Readiness for operation
xx?xx = heating of lambda probe(s)

field X (Lambda-sensor downstream of catalyst):
xxxxX = lambda control = active
xxxXx = lambda control = Readiness for operation
xx?xx = heating of lambda probe(s)

XX - Basic settings group XXX

activate default settings

depress - brake pedal

increase rpm to XXXX - XXXX rpm

required values
field X = Test OFF -> TEST ON

wait

required values (may take several minutes):
field X = RX-SX OK

upon achievement of values - release - brake pedal + accelerator pedal

XX - Basic settings group XXX

activate default settings

depress - brake pedal

increase rpm to XXXX - XXXX rpm

wait

required values (may take several minutes):
field X = RX-SX OK

upon achievement of values - release - brake pedal + accelerator pedal

XX - Basic settings group XXX

activate default settings

depress - brake pedal

increase rpm to XXXX - XXXX rpm

wait

required values (may take several minutes):
field X > XXX°C
field X = Test OFF -> TEST ON

wait

required values (may take several minutes):
field X = Cat RX OK

upon achievement of values - release - brake pedal + accelerator pedal

XX - Basic settings group XXX

activate default settings

depress - brake pedal

increase rpm to XXXX - XXXX rpm

required values
field X = TEV ON

wait

required values
field X = TEV OK

upon achievement of values - release - brake pedal + accelerator pedal

XX - Basic settings group XXX

activate default settings

depress - brake pedal

increase rpm to XXXX - XXXX rpm

required values
field X = TEST ON

wait (may take several minutes)

required values
field X = Syst-OK

upon achievement of values - release - brake pedal + accelerator pedal

check download of the Readiness code of the Readiness functions

if values are not achieved:

check of error memory

do a test drive
- idling
- partial load
- full load (engine speed > XXXX rpm)
- deceleration

repeate this test

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