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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Lighting System) >> Diagnostic Information and Procedures >> DTC B1480 >> Circuit/System Description

Circuit/System Description

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Battery voltage is applied at all times to the body control module (BCM) from the BCM 2 fuse located in the underhood fuse block. The BCM then applies this voltage to the following lamps:

In the event that any of these lamps were to remain illuminated for more the 20 minutes with the ignition switch in the OFF position, the BCM will deactivate the inadvertent power courtesy lamps circuit to prevent total battery discharge.

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