MSM Power and Grounds
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Battery positive voltage is supplied at all times to the MSM through a 25 A circuit breaker located in the left I/P junction block. This voltage is used by the MSM to apply power to the driver seat, lumbar, and adjustable pedal motors when commanded ON. Battery positive voltage is also supplied at all times to the MSM through a 10 A fuse located in the I/P fuse block. This voltage is used to power up MSM. Ground is provided to the MSM through two separate ground circuits that are connected to a common ground.