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

Data Link Connector - 1 of 3


Object Number: 1424595  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Data Link Connector - 2 of 3
SIR Caution for Zoning
OBD II Symbol Description Notice
Power, AM 1, Door, Tail, P/Point, ECU-B, Stop, OBD, INV, Fuses
SP107, SP108, G104
SP107, SP108, G104
Charge, Air Bag, Malfunction, O/D OFF, Cruise Indicators
Figure 2:

Data Link Connector (DLC) - 2 of 3


Object Number: 1422199  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Data Link Connector - 3 of 3
Data Link Connector - 1 of 3
Figure 3:

Data Link Connector - 3 of 3


Object Number: 1424596  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Data Link Connector - 2 of 3
SIR Caution for Zoning
OBD II Symbol Description Notice
Junction Block - Instrument Panel Left
SP201 and G201