Checking back-up (reversing) lamp switch/gear-shift position sensor signal

Fig 1: Identifying Ignition On Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on
• Put into back-up (reverse) gear.
• Select scrolling values.

  Read off the value for gear position.

  The value should be REAR when in back-up (reverse) gear and STILL/ADV in neutral/forward gear.

  Fig 2: Identifying Scan Tool

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the reading OK? 

• YES 

  FAULT NOT FOUND:  Troubleshooting has been completed.

• NO 

  Refer to Checking connectors and cable