Checking the power supply

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Remove connector from central electronic module (CEM).
• Ignition on.

  Check the voltage supply between central electronic module (CEM) connector 10C and 1C and ground.

  Additional information: 

  • To connect the test box, see Connecting the breakout box .
  • For information on signals, see Signal specification .
  Fig 2: Identifying Voltage Display

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is voltage OK? 

• YES 

  Refer to Checking the wires 

• NO 

  Refer to Repairing the wire