4l60e wont shift cant figure it out

mechanix565 · 10-02-2009, 08:40 PM

ok heres what i got ill try to be as descriptive as possible. complete 5.3l setup out of an 02 tahoe ( harness, pcm, 5.3l, fusebox) tranny is a 4l60e from a 95 camaro, i updated it with the tahoe neutral safety switch, internal wiring harness to match the new pcm. i have park, reverse, neutral and third and i can manually shift second, i have no power to the E pin so i tried jumping it still nothing, all the fuses in my fuse box are good checked them all the tranny should have power at it, but it doesnt where can i start searching? this whole setup is installed in a 79 mustang. when i hook up my data link scanner im reading alot of tranny related codes, TCC selonoid, shift timing selonoid, torque convertor circuit open, shift selonoid a, b. i tested all the selonoids and they are all working and trans doesnt even have a mile on it since the rebuild and shift kit, torque convertor is brand new.... any help would be amazing

mechanix565 · 10-02-2009, 09:40 PM

im looking at the all data right now and the more i look at it it kinda seems like the problem could be related to the fact that the pcm doesnt have a signal beieng sent to it by the brake switch?? heres the all data pinout diagram idk tho im lost here.. i put up all the info on all the different tranny related harness's

performabuilt · 10-02-2009, 11:32 PM

Without power on pin E you will get all those codes you mentioned . The brake light switch would only affect lockup

mechanix565 · 10-03-2009, 05:58 PM

can i run a jumper wire to the the pink wire (e pin) on the connector?? will it have the same effect? or does it have to come from the fuse box because im thinking that there is a break in the circuit between the fues box and the unit. also im only running the underhood fuse box from an 02 tahoe do i need the interior box also because it has 1 fuse in it that says automatic transmission its a 10 amp fuse

Dyno paul · 10-03-2009, 11:42 PM

The E terminal needs to be fused ignition . Because it needs to be on when the car is running and off when the car is off . The e termianl supplies the two shift solenoids the 3/2 downshift solenoid and Lockup circuit. when the PCM/TCM does not see the voltage drop when the car is started and the required solenoid is commaned (grounded) it sets those codes. PS I think it is 10 Amps.

mechanix565 · 10-04-2009, 12:00 PM

so if i tap the 10 amp fused wire under the fuse box for ignition and run it to the e pin so its got power on key on and start and off when keys off then it will work correct?

mechanix565 · 10-04-2009, 03:03 PM

problem solved ran a new wire from the ignition side run power to pin e shifts perfect thanks guys!!! this things an animal in 1st gear especially wit the MT et streets