Data Link Connector Schematics. GMC Truck TopKick C-Series (Conventional) C4/C5 2005

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2005 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Data Link Connector Schematics

Figure 1:	Data Link Connector Power and Ground - 1 of 2 Master Electrical Component List Data Link Communications Description and Operation Data Link Connector, Power, and Ground - 2 of 2 RADIO/CHIME, CHMSL, and PWR POST Fuses/Circuit Breakers RADIO/CHIME, CHMSL, and PWR POST Fuses/Circuit Breakers Data Link Connector, Power, and Ground - 2 of 2 Diagnostic Tool Connector - Power and Ground Diagnostic Tool Connector - Power and Ground G103 - 1 of 2, G105, and G106 G103 - 1 of 2, G105, and G106 Data Link Connector, Power, and Ground - 2 of 2
Figure 2:	Data Link Connector Power and Ground - 2 of 2 Master Electrical Component List Data Link Communications Description and Operation Splice Pack SP203 (L18/LB7/LG4) Data Link Connector, Power, and Ground - 1 of 2 Data Link Connector, Power, and Ground - 1 of 2 Data Link Connector, Power, and Ground - 1 of 2
Figure 3:	Splice Pack SP203 Master Electrical Component List Data Link Communications Description and Operation Diagnostic Tool Connector - Power and Ground Data Link Connector, Power, and Ground - 2 of 2 Serial Data Gateway
Figure 4:	CAN Connector Power and Ground Master Electrical Component List Data Link Communications Description and Operation Serial Data Gateway Splice Pack SP203 (L18/LB7/LG4) RADIO/CHIME, CHMSL, and PWR POST Fuses/Circuit Breakers RADIO/CHIME, CHMSL, and PWR POST Fuses/Circuit Breakers Data Link Connector, Power, and Ground - 1 of 2 Data Link Connector, Power, and Ground - 1 of 2 Module Power, Ground, Serial Data, and Indicator G101 - 1 of 2 J1939 Serial Data (LB7) J1939 Serial Data (LG5/L18/LG4/LC8) J1939 Serial Data (LB7) J1939 Serial Data (LG5/L18/LG4/LC8)
Figure 5:	Serial Data Gateway (SDG) Master Electrical Component List Data Link Communications Description and Operation J1939 Serial Data (LB7) Diagnostic Tool Connector - Power and Ground J1939 Serial Data (LG5/L18/LG4/LC8) Underhood Fuse Block, PCM-B, HTD FUEL, A/C COMP, and RR DEFOG Fuses Underhood Fuse Block, PCM-B, HTD FUEL, A/C COMP, and RR DEFOG Fuses I/P Fuse Block, START and TRANS Fuses/Circuit Breakers G103 - 2 of 2 Splice Pack SP203 (L18/LB7/LG4)
Figure 6:	J1939 Serial Data - LLY Master Electrical Component List Data Link Communications Description and Operation J1939 Serial Data (LG5/L18/LG4/LC8) Serial Data Gateway Diagnostic Tool Connector - Power and Ground Diagnostic Tool Connector - Power and Ground
Figure 7:	J1939 Serial Data - 1 of 2 - L18/LG4 Master Electrical Component List Data Link Communications Description and Operation J1939 Serial Data (LG5/L18/LG4/LC8) J1939 Serial Data (LB7) Diagnostic Tool Connector - Power and Ground Diagnostic Tool Connector - Power and Ground Diagnostic Tool Connector - Power and Ground Diagnostic Tool Connector - Power and Ground J1939 Serial Data (LG5/L18/LG4/LC8) J1939 Serial Data (LG5/L18/LG4/LC8) Serial Data Gateway Serial Data Gateway Serial Data Gateway Serial Data Gateway
Figure 8:	J1939 Serial Data - 2 of 2 - L18/LG4 Master Electrical Component List Data Link Communications Description and Operation J1939 Serial Data (LG5/L18/LG4/LC8) J1939 Serial Data (LG5/L18/LG4/LC8) J1939 Serial Data (LG5/L18/LG4/LC8) J1939 Serial Data (LG5/L18/LG4/LC8) J1939 Serial Data (LG5/L18/LG4/LC8)