Checking Components And Connections

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS CORPORATION

Ignition on
Activate reading off the position of the throttle
Check that both sensors indicate give values within the permitted range for different deployments
Ignition off.
Check the engine control module (ECM) and the throttle unit connector. Check for contact resistance. Check for oxidation.

Check if the throttle unit is blocked. Press the throttle disc to check for jamming.

Clean the throttle unit if necessary.

Other information
- see CONNECTING THE BREAKOUT BOX
- see SIGNAL SPECIFICATION
- see THROTTLE BODY
- see THROTTLE BODY, CLEANING
- see CHECKING WIRING AND TERMINALS
Fig 2: Identifying 6-Bit Connector
Courtesy of VOLVO CARS CORPORATION

Fig 3: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS CORPORATION

Fig 4: Identifying Electronic Throttle Unit
Courtesy of VOLVO CARS CORPORATION