Checking The Power Supply

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS CORPORATION

• Ignition off.

  Check the voltage to ground at the following points: 

  Rear main fuse.

  Rear fuse.

  The voltage must be at least battery voltage minus 3 V.

  Check that the fuses are intact.

  Remedy as necessary.

  Fig 2: Identifying Voltage Display

  Courtesy of VOLVO CARS CORPORATION
  Fig 3: Battery And Cargo Compartment Main Fuse

  Courtesy of VOLVO CARS CORPORATION

Was the fault found? 

• YES 

  Refer to VERIFICATION 

• NO 

  Refer to CHECKING THE POWER SUPPLY AND GROUND ON THE ACCESSORY ELECTRONIC MODULE (AEM)