: Onstar wiring



89Eldo
10-20-10, 09:10 PM
anyone have Onstar wiring schematics for anything 2002+??

Submariner409
10-21-10, 09:38 AM
anyone have Onstar wiring schematics for anything 2002+??

OnStar, particularly the 2002+ digital upgrade package, piggybacks with other functions as well as dedicated harnesses. Everything from the steering wheel, mirror, HU, dash speaker, rear electronics bay in the trunk.

A GM/Helm service manual or www.alldatadiy.com.