GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2001
🢒
Envoy - 4WD
🢒
Body and Accessories
🢒
Data Link Communications
🢒 Data Link Connector Schematics
Figure
1:
Power, Ground, Transfer Case Shift Control Module and Vehicle Interface Unit (VIU)
Master Electrical Component List
Data Link Communications Description and Operation
SP201 (2.2L)
INT BATT Fuse
Except Envoy
G103 and G105 (2.2 L)
G103 and G105 (4.3 L)
G103 and G105 (2.2 L)
G103 and G105 (2.2 L)
G200, G201 and G207 (Pickup and Crew Cab)
Figure
2:
SP201 (2.2L)
Master Electrical Component List
Data Link Communications Description and Operation
SP201 (4.3L)
Power, Ground, Transfer Case Shift Control Module and Vehicle InterfacE Unit (VIU)
SIR Handling Caution
Figure
3:
SP201 (4.3L)
Master Electrical Component List
Data Link Communications Description and Operation
SP201 (2.2L)
SIR Handling Caution