Checking the power supply (LSM)

Check the power supply to the switch, i. e. the wire between the light switch module 1 (3/111) and fuse 23 in the interior compartment fuse box (11C/23), for an open circuit as described in Open-circuit, permanent faults .

Check fuse 23 in the interior compartment fuse box (11C/23).

Check the ground wire to the light switch module 5 (3/111) at the ground point.

Do the necessary corrective action.

Fig 1: Identifying Rain Sensor Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.