Checking Components And Connections

Fig 1: Identifying Ignition In Off Position

Courtesy of VOLVO CARS CORPORATION

Engine idling
Activate read-out of the throttle damper's current position and the throttle damper's reference value.
Check that both signals follow each other at different rpms and movements of the throttle disc.
Ignition off.
Check if the throttle unit is blocked. Press the throttle disc to check for jamming.

Clean the throttle unit if necessary.

Other information
- see "THROTTLE BODY, CLEANING" for appropriate year/engine under INTAKE AND THROTTLE BODY
- see THROTTLE BODY
Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying Throttle Body
Courtesy of VOLVO CARS CORPORATION