Engine Controls Schematics (LS3)

Fig 1: Power, Ground, Serial Data, and MIL

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Fig 2: 5-Volt Reference Bus

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Fig 3: Low Reference Bus

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Fig 4: Stop Lamp Signals, and ECT, MAF/IAT, MAP, and Vehicle Speed Sensors

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Fig 5: Heated Oxygen Sensors

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Fig 6: Electronic Throttle Controls

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Fig 7: Fuel Injectors

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Fig 8: EVAP Solenoids, FTP Sensor, and Fuel Pump Controls

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Fig 9: Ignition Controls Bank 1 (Odd) Ignition Coils

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Fig 10: Ignition Controls Bank 2 (Even) Ignition Coils

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Fig 11: Ignition Controls - CMP, CKP, and KS Sensors

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Fig 12: Controlled/Monitored Subsystem References

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