Map Light: Description and Operation

The overhead map lamps are powered by the 10 amp fuse located in the junction block on the M1 circuit. This fuse is the Ignition-Off Draw (IOD) fuse and is located in cavity 5. This circuit is HOT at all times.

When the operator turns the lamp ON by closing the switch a ground path is completed on circuit Z1. This ground terminates at the instrument panel left side cowl.