Information Bus

2012 Chevrolet Impala V6-3.6LSECTION Information Bus



Data Communication Schematics

Power, Ground, and Low Speed GMLAN Serial Data





Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed GMLAN Serial Data
Fuse Block - Underhood Bussing
DISPLAY, HDLP MDL, LT SPOT, and RT SPOT Fuses
G201
G202 and G204

High Speed GMLAN Serial Data





Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
CAN Bus Serial Data
Power, Ground, and Low Speed GMLAN Serial Data

CAN Bus Serial Data





Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed GMLAN Serial Data

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.