Scan Tool Does Not Communicate with Low Speed GMLAN Device: Notes
WARNING: This page is about a different car, the 2005 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Modules connected to the low speed GMLAN serial data circuit monitor for serial data communications on the low speed GMLAN network during normal vehicle operation. Operating information and commands are exchanged among the modules.
The following modules communicate on low speed GMLAN:
- Radio, w/U32
- Digital Radio Receiver (DRR), w/U2K