DTC PZ2471, Interior Lights Fault: Notes
WARNING: This page is about a different car, the 1996 Cadillac Seville and 1996 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
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 PZ1971 is not set as current. A short to battery will be tested when inadvertent power is active, interior lights output is active, and DTC PZ1971 is not set as current.
DTC PZ2471 will set when commanded state of interior lights does not match feedback state. When DTC PZ2471 is set, PZM will continue to command state requested until IPC revokes request. DTC PZ2471 will clear when commanded state matches feedback state.