The 4L80E Transmission system is equipped with a computer called the Transmission Control Module (TCM), located in the left/rear passenger seat compartment which interprets, ana-lyzes and records electronic signals from sensors and switches located on the engine, brake pedal, and transmission.. Detailed 4L80E transmission wiring diagram, showing the connections and components for proper installation and troubleshooting of the system.
![[DIAGRAM] 1993 Chevy 4l80e Wiring Diagram](https://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/139809d1501888222-4l60e-4l80e-wiring-swap-4l80ewiringconversion.jpg "[DIAGRAM] 1993 Chevy 4l80e Wiring Diagram")
![[DIAGRAM] 1993 4l80e Transmission Wiring Diagram](http://www.performancetrucks.net/forums/attachments/gm-drivetrain-suspension-22/50243d1260196893-4l80-wiring-4l80e-trans-side-pinout.jpg "[DIAGRAM] 1993 4l80e Transmission Wiring Diagram")
![[DIAGRAM] 1993 Chevy 4l80e Wiring Diagram](https://cimg0.ibsrv.net/gimg/ls1tech.com-vbulletin/1200x843/80-solenoids_stop_lamp_pcm_80e_b26bd02b8d71791c5c533e5adbcb6c7f0daa1cff.gif "[DIAGRAM] 1993 Chevy 4l80e Wiring Diagram")
![[DIAGRAM] 1996 4l80e Wiring Diagram Picture Schematic](https://www.justanswer.com/uploads/SamC/2007-06-17_223302_burb914.PNG "[DIAGRAM] 1996 4l80e Wiring Diagram Picture Schematic")
4L80E Transmission Wiring Harness Diagram on 93 4l80e Trans Wiring Diagram. ATSG Tech Manual 4L80E 4L85E On GMC Chevy Rebuild Guide Book MT1 4L80 4L Honda Passport Automatic Transmission Repair Manuals Guide Book Car Parts Cadillac Chevy Tech Bmw from Pinterest.. Fig. 62: Installing Accumulator Assembly Courtesy of GENERAL MOTORS CORP. Fig. 63: Removing & Installing Lube Pipe, Wiring Harness & Valve Body Assembly Bolts (Identified By Letters) Courtesy of GENERAL MOTORS CORP. Fig. 64: Exploded View Of Hydra-Matic 4L80-E Internal Components Courtesy of GENERAL MOTORS CORP.