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Home >> Chevrolet >> 2020 >> Camaro SS, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Lighting System - Diagnostic Information And Procedures (B053A-B3949) >> Diagnostic Information and Procedures >> DTC B255D >> Circuit/System Description

Circuit/System Description

Accent Lighting without C70 

The body control module (BCM) supplies battery voltage to the accent lamps via the accent lamps control circuit. When a door is opened the BCM applies battery voltage to the accent lamps control circuit illuminating all of the accent lighting. The accent lighting will remain illuminated until all doors are closed and the ignition is OFF. The accent lighting remains illuminated with the ignition ON.

Accent Lighting with C70 

The body control module (BCM) supplies battery voltage to the center console flood lamp as well as the accent lamp control module via the accent lamps control circuit. When a door is opened the BCM applies battery voltage to the center console flood lamp as well as the accent lamp control module illuminating all of the accent lighting. The accent lamp control module receives the signal from the BCM and responds by applying voltage to the accent lighting that is controlled by the accent lamp control module. The accent lamp control module monitors this input from the BCM for dimming purposes and adjusts the brightness level based on the input from the BCM. All accent lighting will remain illuminated until all doors are closed and the ignition is OFF. The accent lighting remains illuminated with the ignition ON.