Checking The Control Module

Check the relay coil driver circuit for a short-circuit to supply voltage by taking a voltmeter reading at terminal #2 in the relay base.

For further information about a short-circuit to supply voltage, see SHORT-CIRCUIT TO SUPPLY VOLTAGE. PERMANENT FAULTS .

HINT: The voltage between terminal #2 and ground should be approximately 0 V. 

Fig 1: Identifying Voltage Display

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying Relays

Courtesy of VOLVO CARS CORPORATION

If the voltmeter displays an incorrect value replace the control module.

Other information: 

• To access and replace the integrated relay / fusebox in the cargo compartment, see RELAY/FUSE BOX CARGO COMPARTMENT/REAR ELECTRONIC MODULE (REM), REPLACING .

Refer to VERIFICATION