Checking the ground terminal: Notes

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Control module disconnected
• Switch off all equipment that takes power from the battery (courtesy lighting, radio etc).

  Connect the breakout box.

  Connect an ohmmeter between terminal #A20 on the breakout box and the battery negative terminal.

  The ohmmeter should read 0 Ω.

  Other information 

  • To connect the breakout box, see Connecting the breakout box .
  Fig 2: Identifying Ohm Meter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the value OK? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking for open-circuits, contact resistance and oxidation