Just a few days ago I encountered my 2008 Pontiac G5 unlocking itself randomly. I checked the fuse box and fuses are fine, I did test with a new fuse same result. Exactly what’s happening is, the power locks randomly unlock (never lock), and hitting the power lock on driver’s side only works to unlock, not lock; hitting power lock on passenger’s side works for both. The random unlocking is simultaneous on all four, no single door is having an issue.
Am I relegated to going to the dealer? A friend with some car knowledge said I need a wire schematic to determine where the short might be if that’s the case, or it’s impossible. Thanks for any help folks!