Checking the ground terminals

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Control Unit

Courtesy of VOLVO CARS OF NORTH AMERICA.

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

  Check the resistance between the battery negative terminal and breakout box terminal #16 and between the battery negative terminal and breakout box terminal #46. The resistance must be 0 Ω.

  Check the ground terminal 1/1 (battery negative terminal) if the resistance is incorrect. Check for an open-circuit and contact resistance.

  Check the cable between ground terminal 31/95 (left-hand wheel arch) and brake control module terminals #16 and #46. Check for an open-circuit. Check for contact resistance.

  Other information 

  • To connect the breakout box, see Connecting the breakout box .
  • For further information about the fuses and relays, see the Wiring Diagram.
  Fig 3: Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 4: Identifying Ohmmeter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to Verification 

• NO 

  Refer to Information