Faulty signal: Verification: Verification

HINT: After carrying out the repair, check that the fault has been remedied. 

Fig 1: Identifying Ignition On Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Connectors

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Reinstall the connectors, components 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 car 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 is completed correctly, the following information will be displayed:

  • Adaptation of the throttle unit: OK
  • Adaptation of the throttle unit running: NO.

  The fault has been remedied if the adaptation has been completed correctly.

  Fig 3: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Throttle Unit & Potentiometer

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the adaptation OK? 

• YES 

  VERIFIED:  Troubleshooting has been completed.

• NO 

  Refer to Information, fault-tracing has failed