Actuate Rear Fog Light, Basic Function - GF82.10-P-1021A

Model all (CAR)

General

The rear fog light identifies the rear area of the vehicle in poor weather conditions. The rear fog light is operated via the rear fog light button on the exterior lighting switch.

Function requirement

Low beam or daytime running lights on

Actuate rear fog light

The exterior lighting control unit (vehicle-specific either the central controller unit or the front central controller unit) actuates the rear fog light independently or requests the actuation. This takes place depending on the network architecture of the vehicle.

Vehicles with trailer hitch

The rear fog light on the vehicle is not actuated during trailer operation. Instead, the rear fog light on the trailer is actuated. The exterior lighting control unit requests actuation of the rear fog light on the trailer. The trailer recognition control unit implements this request.

Function schematics
Function schematic, actuate rear fog light	Model 118, 177, 247	PE82.10-P-2514-97A
	Model 167, Model 293	PE82.10-P-2514-97B
Control units
Trailer recognition control unit, basic function	Model all (CAR) with code 550 (Trailer coupling)	GF31.19-P-9890A
Central controller unit, basic function	Model 118, 177, 247	GF54.21-P-9895A
Front central controller unit basic function	Model 167 Model 293	GF54.21-P-9896A
Components
Rear lamp unit, basic function		GF82.10-P-2004A
Exterior lights switch, basic function		GF82.10-P-2022A