Checking vehicle speed signal

HINT: An alternative to the following test is to test drive the car. 

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Disconnect the Volvo Scan Tool (ST) from the VIDA station. Use it in stand alone mode and connect it to the data link connector (DLC) in the car.
• Lift car so that the front wheels hang free (on AWD rear wheels as well) and remove the wheels.
• Engine idling
• Select a gear so the front wheels start to rotate.
• Go into scrolling values.

  Read off the value for speed.

  Check vehicle speed signal

  NOTE:

  Ensure that the wheels are not rotating when the gear selector is moved.

  Fig 2: Identifying Scan Tool

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the value for speed updated? 

• YES 

  FAULT NOT FOUND:  Troubleshooting has been completed.

• NO 

  Refer to Checking connectors and cable