DTC B2471, Interior Lights Fault: Notes

Interior lights are commanded by PZM through an output to courtesy lights relay. When courtesy lights relay is energized, ground is provided for interior lights.

A short to ground will be tested when inadvertent power is active, interior lights output is inactive, and DTC B1971 is not set as current. A short to voltage will be tested when inadvertent power is active, interior lights output is active, and DTC B1971 is not set as current.

DTC B2471 will set when commanded state of interior lights does not match feedback state. When DTC B2471 is set, PZM will continue to command state requested until IPC revokes request. DTC B2471 will clear when commanded state matches feedback state.