GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Power, Ground, MIL, Serial Data


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Figure 2:

Engine Data Sensors - Pressure and Temperature, Stop Lamp, VSS


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Figure 3:

Engine Data Sensors - Electronic Throttle Controls


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Figure 4:

Engine Data Sensors - Oxygen Sensors


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Figure 5:

Ignition Controls System, CMP Solenoid Valves


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Figure 6:

Ignition Controls - Sensors


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Figure 7:

Fuel Pump Controls, Injectors


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Figure 8:

Fuel EVAP Controls and Rough Road Sensor


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Figure 9:

Controlled/Monitored Subsystem References


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