4l80e Wiring Harne Pin

Whenever servicing a 4l80 e 4l80 ehd transmission prior to 1994 model year and the electrical wiring harness is being installed the extra slack in wire length for the pressure control solenoid pcs can be taken up by twisting the conduit one to two turns with the conduit that leads to the pulse width modulated pwm solenoid then the pwm and.

4l80e wiring harne pin. It does not matter where these two wires go in the two pin speed sensor plug. Connect the pink wire to a key on 12 volt source. Also includes iss input speed sensor wiring. Polarity does not matter.

25 2 a b c hd x 4l80e full manual valve body wiring instructions 1. You will now have two extra wires these will be used for the 4l80e s input speed sensor. The pink wire provides power to the internal solenoids. Attach a speed sensor pigtail to the white and tan black wires removed a few steps above.

Gm external wire harness repair kit 20 pin 1993 up rostra 41859vc. Install the switch shift wiring harness optional install the a b mode switch optional. You need a minimum 4 7 ohm or higher resistance up to 10 ohms 10 watt or more resistor such as digi key 4 7cwbk nd 1 67 on the pressure control solenoid wire from the trans connector pin d to the gpio board s pin 33. 89 31 48 95 you save 40 36.

Because of this we do not provide a wiring harness for it. Transmission internal wiring harness assembly 132 tcm connection identification 133 136 transmission j1 transmission harness connector pin out 137 j2 connector sensor wiring diagram 138 brake switch wiring diagram 139 solenoid range. Plugs into the new transmission and the other end is fully terminated and labeled for easy hook up to your ecm connectors. It seems for many people that the scariest part of the modern engine swap is the wiring harness.

Pin pin name function wire color termination notes. When you are doing a build with the ls family of gm engines the idea is to end up with a. The 4l80e transmission has two speed sensors 4l60e only used one. If switching from a t56 manual trans to a 4l80e on your ls vehicle this harness is what you need to make it work properly.

Trans plug pin s. The circuit must be fused. This early harness has a problem with leaking fluid at the pass through connector. Ecm reprogramming required for proper operation.

External wiring harness update 4l80e 1991 2009 34445ek rostra. Internal wiring harness 4l80e 1993 2003 34446. The hydra matic 4l80e is a 4 speed automatic transmission which uses electronic control. To wire the 4l80e transmission to the gpio board you need to make a number of connections.

Gm recommends upgrading to the newer connector and wiring harness.