Daytime Running Lights (From Structure Week 201044, Option)

Fig 1: Identifying Front Fog Lamps

Courtesy of VOLVO CARS CORPORATION

If the vehicle is equipped with daytime running lights, these are located in the bumper casing below the headlights where the front fog lights otherwise would be installed.

Light switch module (LSM) is directly connected to Central electronic module (CEM). The lights are supplied with voltage via a directly connected relay from Central electronic module (CEM), the same relay that normally supplies voltage to the front fog lights.

The relay for daytime running lights/front fog lights can be diagnosed.