Interior lights won’t turn off.

[Shawndemmitt]

Interior lights will not turn off. I have tried dimmer switch, all the light buttons. They don’t turn off unless the battery is unplugged. None of the doors are ajar.

 

[ravenblack67]

The following is from the service manual:
Circuit/System Description
The body control module (BCM) supplies battery voltage to the front and rear reading lamps, left and
right sunshade lamps, and center console compartment lamp via the courtesy lamp control circuit. When
the center console compartment or a sunshade mirror is opened, the switch contact close allowing
battery voltage to flow illuminating the respective lamps. The front and rear reading lamps are
controlled by individual switches that are activated by the operator when additional cabin lighting is
required. In the event that any of these courtesy lamps were to remain illuminated for more than 10 min
with the ignition switch in the OFF position, the BCM will deactivate the courtesy lamp control circuit
to prevent total battery discharge.