Circuit/System Verification
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Verify that DTC B008A or B008B is not set.
- If any of the DTCs are set, program the serial data gateway module. If any of the DTCs reset, replace the serial data gateway module.