System Diagram

Engine Controls Schematics (L99/LS3)

Module Power, Ground, Serial Data, and MIL





Master Electrical Component List
Engine Control Module Description
Control Module References
B+ Bus (1 of 2)
Electrical Center Identification Views
Data Communication Schematics

5V1, 5V2, and Low Reference Bus (1 of 2)





Master Electrical Component List
Engine Control Module Description
Control Module References

Low Reference Bus (2 of 2)





Master Electrical Component List
Engine Control Module Description
Control Module References

Engine Data Sensors - Pressure and Temperature





Master Electrical Component List
Engine Control Module Description
Control Module References

Engine Data Sensors - Throttle Controls





Master Electrical Component List
Throttle Actuator Control (TAC) System Description
Control Module References

Engine Data Sensors - Oxygen Sensors





Master Electrical Component List
Engine Control Module Description
Control Module References

Ignition Controls - Ignition Coils 1, 3, 5, and 7





Master Electrical Component List
Electronic Ignition System Description
Control Module References

Ignition Controls - Ignition Coils 2, 4, 6, and 8





Master Electrical Component List
Electronic Ignition System Description
Control Module References

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





Master Electrical Component List
Electronic Ignition System Description
Control Module References
Master Electrical Schematic Icons

Device Controls - Displacement on Demand (L99)





Master Electrical Component List
Cylinder Deactivation (Active Fuel Management) System Description
Control Module References

Fuel Controls - Fuel Injectors





Master Electrical Component List
Fuel System Description
Control Module References

Fuel Controls - Fuel Pump Controls





Master Electrical Component List
Fuel System Description
Control Module References
Data Communication Schematics
Master Electrical Schematic Icons
G402, G403, and G404

Fuel Controls- Evaporative Emission Controls





Master Electrical Component List
Evaporative Emission Control System Description
Control Module References
B+ Bus (1 of 2)
F2U, F25U, F26U, F31U, F32U, F33U, and F34U Fuses

Controlled/Monitored Subsystem References





Master Electrical Component List
Engine Control Module Description
Control Module References
Starting and Charging Schematics