GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2001 🢒 Tahoe - 2WD 🢒 Body and Accessories 🢒 Data Link Communications 🢒 Data Link Connector Schematics
Figure 1:

Power and Ground
Object Number: 657779 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
SP205
B+ Bus Bar
G203 - 3 of 4 - Base Pickup
AIR, RADIO, ECM B, FRT HVAC, and CIGAR Fuses
G103 and G105 - Gas
G203 - 3 of 4 - Base Pickup
G103 and G105 - Gas
G105 - Diesel
G103 and G105 - Gas
G203 - 1 of 4
Figure 2:

SP205
Object Number: 657780 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Power and Ground