Checking The Ground Terminal

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Control module disconnected
• Switch off all power consuming equipment (courtesy lighting, radio etc).

  Connect an ohmmeter between terminal #14 on the breakout box and the battery negative terminal.

  Other information 

  • See CONNECTING THE BREAKOUT BOX 
  • see SIGNAL SPECIFICATION .
  Fig 2: Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Ohmmeter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

The ohmmeter should read approximately 0 Ω. 

• OK 

  OKAY:  Troubleshooting has been completed.

• NOT OK 

  Refer to CHECKING FOR OPEN-CIRCUITS, CONTACT RESISTANCE AND OXIDATION