GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Stop Lamp Signal, TFT Sensor and TCC, Shift Solenoids


Object Number: 1791999  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
VSS and AT ISS Sensors, Pressure Control Solenoid Valve, and TCC Release Switch
BCM Inputs and Outputs, 1 of 4
Rear Stop/Turn Signal Lamps
Engine Data Sensors - APP and TAC
Underhood Fuse Block B+
Figure 2:

VSS and AT ISS Sensors, Pressure Control Solenoid Valve, and TCC Release Switch


Object Number: 1792040  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
Transmission Internal Mode Switch (IMS)
Stop Lamp Signal, TFT Sensor and TCC, Shift Solenoids
Automatic Transmission Schematic Icons
Automatic Transmission Schematic Icons
Figure 3:

Transmission Internal Mode Switch (IMS)


Object Number: 1792049  Size: FS
Master Electrical Component List
Electronic Component Description
Control Module References
VSS and AT ISS Sensors, Pressure Control Solenoid Valve, and TCC Release Switch
G112 (L26)