Checking For Short-Circuits

Measure the resistance between the fuse holder secondary side (left) and ground.

The ohmmeter should indicate an open-circuit.

If the value is correct, replace the fuse.

If the ohmmeter displays a fault (short-circuit), fault-trace all affected relay circuits for a short-circuit to ground.

HINT: The relay circuits affected are from relays 2/111, 2/112, 2/113, 2/114, 2/115, 2/56, 2/59 and 2/67. 

Remove one relay at a time and measure resistance to ground from terminal #5 and #3 on the relay base to determine which loop the fault is in.

Other information 

• To expose the integrated relay/fusebox in the cargo compartment, see RELAY/FUSE BOX CARGO COMPARTMENT/REAR ELECTRONIC MODULE (REM), REPLACING
• see CHECKING WIRING AND TERMINALS .

Fig 1: Identifying Relays

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS CORPORATION

Fig 3: Locating Integrated Relay/Fusebox In Cargo Compartment

Courtesy of VOLVO CARS CORPORATION