This post is aimed at those who work in the auto trans repair industry.
I have this DTC coming up all the time and down here in New Zealand the 4t40e is only used ( to my knowledge) on the Toyota Cavalier. So the Tranny auto repair shops really have no idea of how to fix it. GM here in New Zealand wont have anything to do with the Toyota Cavalier nor Toyota as they are a second hand import out of Japan.
Now approached 4 different shops and have had no joy in finding someone who can fix the problem. Simply they do not seem to know.
Have been doing my own research via google etc and keep coming up with the same result that the DTC is caused by the TCC valve in the valve body sticking. Is this the problem ? If so what needs replacing etc.

Before any one asks. A Toyota Cavalier is a right hand drive Chevy Cavalier rebadged and exported to Japan with a few cosmetic changes.

Thanks

ok heres what you got, P1887 Release Switch Circuit Malfunction. had this problem once before and it ended up being a bad wire. if you want i can email you the diagnostic procedure.

Much appreciated. Send email

i was wondering if either of you could email me that fix also... my dad's car hjaving same problem

thanx alot


Hellraiser and Lil Lightning

i am about to bring this post back from the dead but i got the same problem on my 96. any info would be greatly apprecaited

PM or use Kyle 102565's e-mail link to see if he can send you the diagnostic proceedure. I really can't do much for you other than that, I primarilly deal with the TH125C/3T40 in FWD applications.

TranStar Industries has a catalog with the exploded diagrams of the transmission and parts listing you can download, after you register.