Operation CHARM: Car repair manuals for everyone.
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Electrical Diagrams




Engine Controls Schematics (LS3)

ECM Power, Ground, MIL, and Serial Data






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






Low Reference Bus (2 of 2)






ECT, MAF/IAT, and MAP Sensors





Heated Oxygen Sensors






Electronic Throttle Controls






Fuel Injectors






EVAP Solenoids, FTP Sensor, and Fuel Pump Controls





Ignition Controls- Bank 1 (Odd) Ignition Coils






Ignition Controls- Bank 2 (Even) Ignition Coils






Ignition Controls- CMP, CKP, and Knock Sensors






Controlled/Monitored Subsystem References