GM Service Manual Online
For 1990-2009 cars only
Makes
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Chevrolet
🢒
2009
🢒
Express
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Diagnostic Navigation
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Vehicle Diagnostic Information
🢒 Radio/Navigation System Schematics
Figure
1:
Power, Ground, Serial Data, Antenna and Front Speaker Outputs
Figure
2:
Rear Speaker Outputs
Figure
3:
Steering Wheel Radio Redundant Controls