Section 4 (Engine Controls And Fuel - 5.3L (L83) Or 6.2L (L86) - Schematic Wiring Diagrams)
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
- Schematic Wiring Routing Diagrams
- Engine Controls Wiring Schematics
- Module Power, Ground, Serial Data and MIL
- 5V and Low Reference Busses
- Engine Data Sensors - Pressure, Temperature and Throttle Controls
- Engine Data Sensors - Oxygen Sensors
- Ignition Controls - Ignition Coils Bank 1
- Ignition Controls - Ignition Coils Bank 2
- Ignition Controls - Crankshaft Position, Camshaft Position and Knock Sensors, and Camshaft Position Actuator Solenoid
- Valve Lifter Oil Manifold Assembly
- Fuel Controls - Fuel Injectors and Fuel Pressure
- Fuel Controls - Fuel Pump Control
- Fuel Controls - Evaporative Emissions Controls
- Controlled/Monitored Subsystem References
- Engine Controls Wiring Schematics