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

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Object Number: 1666852  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Computer/Integrating Systems DLC Schematic Figure for Graphic 1422199
Computer/Integrating Systems Schematic Icons
Computer/Integrating Systems Schematic Icons
Power, AM 1, Door, Tail, P/Point, ECU-B, Stop, OBD, INV Fuses
Charge, Air Bag, Malfunction, O/D OFF, Cruise Indicators
SP107, SP108, G104
SP107, SP108, G104
Figure 2:

2 or 3


Object Number: 1422199  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Computer/Integrating Systems DLC Schematic Figure for Graphic 1424596
Computer/Integrating Systems DLC Schematic Figure for Graphic 1666852
Figure 3:

3 or 3


Object Number: 1424596  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Computer/Integrating Systems DLC Schematic Figure for Graphic 1422199
Computer/Integrating Systems Schematic Icons
Junction Block Instrument Panel - Left
SP200 and G200