Checking the transmission speed sensor signal

Fig 1: Engine Start Verification

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Move the gear selector to position P.
• Start the engine and let it idle.
• Read off the transmission speed.

  Check that the transmission speed is updated.

  Compare with the engine speed (RPM).

  Fig 2: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the speed updated? 

• YES 

  FAULT NOT FOUND:  Troubleshooting has been completed.

• NO 

  Refer to Checking wiring and sensors