Checking the power supply

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on
• Connect a voltmeter between terminals #11 and #3 on the breakout box.

  The voltmeter should read approximately 0 V.

  Fig 2: Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the voltmeter read approximately 0 V? 

• YES 

  Refer to Intermittent fault 

• NO 

  Refer to Checking the supply circuit