Reply To: 1995 K1500 5.7L 4L60E limp mode

[EricTheCarGuy]

I’m not familiar with those codes, but I was able to find this info that you might find helpful. https://shop.ukrtrans.biz/wp-content/uploads/catalogs/4L60E_80E_CODE_BOOK.pdf

Also here is some additional info you might also find useful.

http://www.ericthecarguy.com/faq/solving-transmission-problems

I hope that helps.