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

Module, Power, Ground, MIL, and Serial Data


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Figure 2:

Engine Data Sensors - MAF and Engine Coolant Temperature Sensor


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Figure 3:

5-Volt and Low Reference


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Figure 4:

CMP Sensors and Solenoids, Knock Sensors, and Crankshaft Position Sensor


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Figure 5:

Engine Data Sensors - Oxygen Sensors


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Figure 6:

Engine Data Sensors - Electronic Throttle Controls


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Figure 7:

Bank 1 Ignition Coils


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Figure 8:

Bank 2 Ignition Coils


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Figure 9:

Fuel Pump and Injectors


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Figure 10:

Evaporative Emissions and Fuel Tank Pressure Sensor


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Figure 11:

Controlled/Monitored Subsystems References


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