Lighting Module 20815236 for Volvo Trucks FM 400 and FH/FM Series 2005–2016Product Overview Part Name: Lighting Module Part Number: 20815236 Vehicle Compatibility: Volvo Trucks FM 400 and other FH FM Euro 4 5 heavy duty models (20052016). Configuration: OEM style electronic lighting module engineered for Volvo heavy duty trucks, designed to regulate and stabilize vehicle lighting systems. Function: Controls headlamps, indicators, and auxiliary lighting circuits, ensuring consistent performance, safety, and error monitoring.