System Components: Inputs - Processing - Outputs

Fig 1: View Of Front Interior Light Circuit Diagram

Courtesy of BMW OF NORTH AMERICA, INC.

The GM in 3 Series convertibles provide power to the manual circuit of the interior lights.
Through the production range there are minor changes in the lighting fixtures.
For example: the additional map light switch on rear seat interior lights on 1997 models. Always refer to the specific appropriate article for the vehicle being serviced.

Fig 2: View Of Interior Lights System Components Circuit Diagram
Courtesy of BMW OF NORTH AMERICA, INC.