cadillac Workshop Repair Guides

Cadillac Workshop Service and Repair Manuals

Scan Tool Does Not Communicate with Class 2 Device|Page 8642 > < Scan Tool Does Not Communicate with Class 2 Device|Page 8640
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Modules connected to the high speed GMLAN serial data circuits monitor for serial data communications on the high speed GMLAN network during
normal vehicle operation. Operating information and commands are exchanged among the modules. When a module detects a bus-off condition, a
DTC U0001 will be set. This DTCs can be retrieved as history only.

Scan Tool Does Not Communicate with Class 2 Device|Page 8642 > < Scan Tool Does Not Communicate with Class 2 Device|Page 8640