I had the generic 706 code and 1776, I have replaced the selenoid pack and thought it was good, now it's going into limp mode again. Replaced the tcm and no change but couldn't get the codes this time just the 706. Any ideas
There are quite a few threads about 2004 TJs with P1776 but few that follow through to resolution.
I don't think that P1776 is necessarily the solenoid pack. The code indicates that the Solenoid Switch Valve is stuck in L/R. The switch valve itself is in the valve body. Could be that the valve is stuck or that the solenoid pack isn't directing fluid flow properly because of a short in the wiring harness.
I think it's time to start tracing the wiring from the TCM to the transmission. If no wiring issues are found, rather than dropping the valve body again, I think I would take it to a shop where they can perform pressure tests to determine if the valve is indeed stuck.
Think it's fixed, ran all day and worked perfect. Now my Currie steering on the other hand is going to require a press, it's got a smile after I slipped off a rock in a stream we were running up.Found the transmission relay had some green corrosion coming out of it so changed it out and so far today I have had no code, we ran Charloue Gap today, great run hopefully it will keep working
Good to hear that you got it resolved. It looks like the solenoid pack receives battery power from the RD wire coming off the relay. If there was corrosion at the relay terminals, that could certainly explain why the switch valve was not moving.
Also have P1692
can’t find any code information.
anyone know?
Any one have a digraph of the transmission where and what solenoids?