GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2003 🢒 Envoy - 2WD 🢒 Body and Accessories 🢒 Data Link Communications 🢒 Data Link Communications Component Views
Figure 1:

Data Link Connector (DLC) and Splice Pack SP205
Object Number: 747277 Size: MF
(1)Data Link Connector
(2)Splice Pack SP205
Figure 2:

Splice Pack SP306
Object Number: 747280 Size: MF
(1)Splice Pack SP306
(2)Rear Floor Panel
(3)Body Harness