Front Fog Lamps

Fig 1: Identifying Front Fog Lamps

Courtesy of VOLVO CARS CORPORATION

If the car is equipped with front fog lights, these are in the bumper casing below the headlights.

The fog lamps are operated via a button in the light switch module (LSM). An LED in the button lights when the fog lamps are activated. The light switch module (LSM) is directly connected to the central electronic module (CEM). The lamps are powered via a directly connected relay on the central electronic module (CEM).

There are diagnostics for the fog lamp relay (front).