Automatic Transmission Electronic Component Views

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

Courtesy of GENERAL MOTORS CORP.

Callouts For Fig 1

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