Circuit/System Testing: Notes

WARNING: This page is about a different car, the 2015 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Each device may need to be disconnected to isolate a circuit fault. Use the schematic to identify the following:

All low speed GMLAN devices the vehicle is equipped with
Low speed GMLAN device and splice pack locations on the low speed GMLAN serial data circuit
The low speed GMLAN serial data circuit terminals for each device or splice pack