Data Link Communications Operation: Notes
WARNING: This page is about a different car, the 1999 Cadillac Catera. However, it is still accessible from the selected car via links, so may be relevant.
The serial data circuit is the means by which the microprocessor controlled modules in the vehicle communicate with each other and the scan tool. There are four different types of protocols on this vehicle
- Class 2
- Controlled Area Network (CAN)
- Keyword 82
- Keyword 2000