Automatic Transmission Controls Schematics. GMC Truck TopKick C-Series (Conventional) C4/C5 2004

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Brakes 🢒 Antilock Brake System 🢒 Automatic Transmission Controls Schematics

Automatic Transmission Controls Schematics MD Transmission

Figure 1:

Module Power, Ground, and Serial Data

Object Number: 792704 Size: FS

Master Electrical Component List
Transmission Tell-Tale Module
Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars
Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars
START and TRANS Fuses/Circuit Breakers
Driver Information Center (DIC)
GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers
A/C COMP, HTD FUEL, PCM-B, and RR DEFOG Fuses
B+ Bus Bar
Transmission Tell-Tale Module
G203 - 3 of 4

Figure 2:

MD/Transmission DTC, Check Transmission Tell-Tale Module

Object Number: 792708 Size: FS

Master Electrical Component List
Module Power, Ground, Serial Data
Starting System (L18/LB7/LLY)
Backup Lamps
Engine Data Sensors - VSS
Engine Data Sensors - Pressure and Temperature 2 of 2
Engine Data Sensors - VSS
J1939 Serial Data (L65/L18/LG4/LC8) - 2 of 2
G203 - 3 of 4
Data Link Connector, Power and Ground - 2 of 2 (LG4/LG5)
Module Power, Ground, Serial Data

Automatic Transmission Controls Schematics LCT Transmission

Figure 1:	Module Power, Ground, Serial Data, MIL, VSS, and Torque Signals Master Electrical Component List Overdrive Defeat and CAN Serial Data OBD II Symbol Description Notice Automatic Transmission Schematic Icons B+ Bus Bar Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars A/C COMP, HTD FUEL, PCM-B, and RR DEFOG Fuses START and TRANS Fuses/Circuit Breakers GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers Driver Information Center (DIC) START and TRANS Fuses/Circuit Breakers Splice Pack SP203 (L18/LB7/LG4/LLY) G203 - 2 of 4
Figure 2:	Overdrive Defeat and CAN Serial Data Master Electrical Component List PNP Switch and Trans Opt Connector Module Power, Ground, Serial Data, MIL, VSS, and Torque OBD II Symbol Description Notice B+ Bus Bar Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars ENGINE and PCM-I Fuses/Circuit Breakers ENGINE and PCM-I Fuses/Circuit Breakers ENG 1 and ENG 4 Fuses (L18/LB7) J1939 Serial Data (LB7/LLY) ENG 1 and ENG 4 Fuses (L18/LB7) G101 - 1 of 2 G100 (L18)
Figure 3:	PNP Switch and Trans Opt Connector Master Electrical Component List Speed Sensors, Trim B, and Shift Solenoids Overdrive Defeat and CAN Serial Data OBD II Symbol Description Notice G100 (L18)
Figure 4:	Speed Sensors, Trim B, and Shift Solenoids Master Electrical Component List TCC PWM and Trim A Solenoids, Pressure Switches, and TFT Sensor PNP Switch and Trans Opt Connector OBD II Symbol Description Notice
Figure 5:	TCC PWM and Trim A Solenoids, Pressure Switches, and TFT Sensor Master Electrical Component List Speed Sensors, Trim B, and Shift Solenoids OBD II Symbol Description Notice