Radio Memory

CIRCUIT OPERATION
All of the systems use the M1 circuit to maintain radio memory. This circuit is connected to the battery through the junction block cavity 13, and protected by a 10 Amp Ignition-Off Draw (IOD) fuse. The M1 circuit is used to supply power to the Body Control Module (BCM), Power Mirrors, and the Power Door Locks. This fuse is also used in several other circuits. The IOD fuse is removed during vehicle shipping to prevent excessive battery draw.