Checking the status

NOTE:

The ignition must be switched on for at least 30 seconds after the basic conditions are met in order for the adaptation to start. It takes approximately 10 seconds to run the adaptation.

Fig 1: Identifying Ignition Switch ON Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
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.
The fault is intermittent at the moment if the adaptation has been completed correctly.

Fig 2: Identifying VCT2000 Diagnostic Tool
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Throttle Unit & Potentiometer
Courtesy of VOLVO CARS OF NORTH AMERICA.

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Refer to Checking connectors and components