MSM Power and Grounds

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 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 memory seat module (MSM) from the following circuit breaker and fuse located in the rear fuse block:

DRIVER SEAT 2 Circuit Breaker: This voltage is used by the MSM to apply power to the driver seat and lumbar motors when commanded.
DSM fuse: This voltage is used to power up MSM.

The MSM is grounded through the module ground circuit and G303.