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

Data Link Connector (DLC (1 of 2))


Object Number: 785604  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
SIR Handling Caution
Data Link Communications Schematics (2 of 2)
POWER, AM-1, DOOR, TAIL, P/POINT, ECU-B, STOP, OBD and INV Fuses
SP107, SP108 and G104
SP107, SP108 and G104
Charge, Air Bag, Malfunction, O/D Off, Cruise Indicators
Figure 2:

Data Link Connector (DLC (2 of 2))


Object Number: 785605  Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
SIR Handling Caution
Data Link Communications Schematics (1 of 2)
Left Instrument Panel Junction Block
SP200 and G200