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

Automatic Transmission Electronic Component Locations


Object Number: 831861  Size: LF
(1)Park/Neutral Position Switch Assembly (39)
(2)Automatic Transmission Input and Output Speed Sensor Assembly (74)
(3)TCC Pressure Control Solenoid Valve
(4)TCC Enable Solenoid Valve
(5)Ratio Control Motor
(6)Line Pressure Control Solenoid Valve
(7)Transmission Fluid Pressure Sensor
(8)Module Leadframe
Figure 2:

Front View Automatic Transmission


Object Number: 1615355  Size: LF
(1)Throttle Body
(2)Fuse Block Underhood C1
(3)Transmission Control Module (TCM)
(4)Engine Control Module (ECM)
(5)Park/Neutral Position (PNP) Switch
(6)Engine Oil Pressure (EOP) Switch
(7)C100 Engine Harness to Transmission Harness
(8)G105
(9)Crankshaft Position (CKP) Sensor
(10)Starter Motor
(11)Knock Sensor Pigtail Connector
(12)A/C High Pressure Switch
(13)A/C Compressor
(14)Generator
(15)C150 Engine Harness to Fuel Injector Harness