Checking fuse and wires

• Check that the fuse in the engine compartment relay/fuse box is intact.

  If the fuse is intact, check the cable between control module terminal #9 and the fuse for an open circuit as described in Open-circuit, permanent faults .

  If the fuse has blown, check the cables to the control module for a short circuit to ground as described in Short-circuit to ground, permanent faults , and for a short circuit to voltage supply as described in Short-circuit to supply voltage. Permanent faults . Then replace the fuse.

  Additional information: 

  • For further information about the fuses and relays, see the relevant wiring diagram.
  • To connect the test box, see Connecting the ABS breakout box .
  Fig 1: Identifying Breakout Box

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 2: Identifying Ohmmeter

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Fuses

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is there a fault with the wires? 

• YES 

  Refer to Verification 

• NO 

  Refer to Replacing the ABS control unit