Automatic Transmission Electronic Component Views

WARNING: This page is about a different car, the 2005 GMC Yukon XL, 2005 Chevrolet Suburban, and 2005 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Automatic Transmission Internal Electronic Components View (4L80-E)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
22a	Automatic Transmission (AT) Input (Shaft) Speed Sensor (ISS) Assembly
22b	Automatic Transmission (AT) Output (Shaft) Speed Sensor (OSS) Assembly
34	Automatic Transmission Fluid Temperature (TFT) Sensor
40	Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
311	2-3 Shift Solenoid (SS) Valve Assembly
313	1-2 Shift Solenoid (SS) Valve Assembly
320	Pressure Control (PC) Solenoid Valve Assembly
323	Torque Converter Clutch Pulse Width Modulation (TCC PWM) Solenoid Valve Assembly