Electrical Diagrams

2013 Chevrolet Sonic L4-1.8LSECTION Electrical Diagrams



Engine Controls Schematics

Module Power, Ground, Serial Data, and MIL





5V and Low Reference Bus (1 of 2)





Low Reference Bus (2 of 2)





Engine Data Sensors - Pressure and Temperature





Engine Data Sensors - Oxygen Sensors





Engine Data Sensors - Throttle Controls





Ignition Controls - Ignition System





Ignition Controls - Camshaft, Crankshaft, and Knock Sensors, Camshaft Actuators





Fuel Controls - Fuel Pump and Fuel Pump Controls





Fuel Controls - Fuel Injectors





Evaporative Emission and Device Controls





Device Controls - Secondary Air Injection (NU6)





Controlled/Monitored Subsystem References




RENDER: 1.0x

NO RELATED

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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.