4l80e Tcc Lockup Diagram. It has done it every now and then since i owned it but seams to be doing it more lately. Now a word or several vis a vis the differences in lockup function between the wimpy 4l60e and that hd bad boy the 4l80e.
The other issue i had was in 1st gear after around 145 degrees or so the. 4l80e tcc wiring diagram. I could manually lock up the converter using the dvt tab.
Ground is provided by the vehicle pcm in a specific sequence to control shift scheduling figure 1.
Pictured below is the tcc solenoid. 4l80e tcc wiringagain okay so last summer i was having an issue wih my 4l80e swap. It of course doesnt lockup cruising anymore. 4l60e tcc is direct lockup where 12v is placed on the tcc solenoid to apply the tc clutch for hard lockup the tcc solenoid is higher impedance at 20 40ohms so as not to overheat and self destruct with constant applied power not much.