GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Automatic Transmission Controls Schematics
Figure 1:

Module Power, Ground, and Shift Selector
Object Number: 2076304 Size: FS
Figure 2:

Switches, Sensors, and Transmission Optional Connector
Object Number: 2076306 Size: FS
Figure 3:

Serial Data, Speed Sensor
Object Number: 2076309 Size: FS
Figure 4:

Module Power, Ground, Serial Data, MIL, VSS, and Torque Controls
Object Number: 2076311 Size: FS
Figure 5:

Overdrive Defeat Switch and CAN Serial Data
Object Number: 2076314 Size: FS
Figure 6:

C102 - Upfitter TRANS OPT Connector and Internal Mode Switch
Object Number: 2076317 Size: FS
Figure 7:

Speed Sensors, Trim B and Shift Solenoid
Object Number: 2076319 Size: FS
Figure 8:

TCC PWM and Trim A Solenoid Valves, Pressure Switch Manifold and TFT Sensor
Object Number: 2076321 Size: FS