Adaptation Of The Throttle Unit

HINT: Faults which caused this diagnostic trouble code (DTC) may affect the adaptation values for the throttle unit. Carry out adaptation of the throttle unit to update the adaptation values. 

Fig 1: Identifying Ignition ON

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Fig 2: Connecting Connector

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• Ignition off
• Reinstall the components and connectors etc.
• Ignition on
• Read off the parameters.

  Check that the following basic conditions for adaptation of the throttle unit are met.

  1. Ignition on / engine off
  2. Battery voltage above 10 V
  3. Accelerator pedal (AP) unaffected
  4. The vehicle must be stationary (no vehicle speed signal)
  5. Engine coolant temperature (ECT) between 5-100°C
  6. Intake air temperature (IAT) above 5 °C.

  Remedy as necessary.

  Check that the adaptation is correctly run after the "Adaptation of the throttle unit running" parameter changes status from "YES" to "NO". When all basic conditions are met, the adaptation must be completed after approximately 40 seconds. When the adaptation has been run correctly, the following information will be displayed:

  • Adaptation of the throttle unit: OK
  • Adaptation of the throttle unit running: NO.
  Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

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  Fig 4: Identifying Throttle Unit & Potentiometer

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• Continue 

  Refer to CHECKING THE FUNCTION