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Codes P0700, P0740, and P1776
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=56215
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Author:  pahighlander [ Wed Oct 13, 2010 9:15 am ]
Post subject:  Codes P0700, P0740, and P1776

My wife's KJ (Persistant KJ) is setting codes P0700, P0740, and P1776. From what I've gathered from my scan tool manual and the internet here's what we've got:

P0700 - Trans Control Sys Malfunction
Appears to just mean there are stored trans codes

P0740 - TCC Circuit Malfunction
Torque converter lockup failure

P1776 - Solenoid switch valve latched in lr position
Valve body

From her description of the behavior of the KJ when the codes set, the torque converter was failing to lockup. RPM spike and then rough shifts ... she pulled off and shut the Jeep down and restarted it to take it out of 'limp mode'. She's going to baby it until we can get it in to have it looked at. Her KJ is an '04 with 99K on the ticker.

Has anyone been down this road and have any tips on what is wrong ... and how expensive this is going to be to fix!

Many thanks!

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