Limp mode? 2002 dodge intrepid 2.7 v6 sohc generic code (key method) p0700 just changed fluid/filter/gasket on trans (atf4)/ my vehicle has the check engine light on / limp mode - what to do?

Old fluid can cause problems. I would have changed the oil, filter and pan gasket before doing anything else. Make sure you get the right type of trans fluid, so many varieties these days and not interchangeable either.

My 2 experiences with limp mode was on a 93' Chevy. 1 time was the ecm, but it didn't reset until I replaced the ecm. The other time was the main electrical plug that comes from the ecm. The largest electrical plug on the trans. I unplugged it and there was trans fluid inside the plug on the 16 pins that connect the external wire Barnes to the internal wire harness of the trans. This required a new harness inside of the trans and replacing the external harness near the trans. Not an easy fix and may not be your issue, but this issue would "come and go". Fluid would short out the communication at the pins.

It sounds like you have a handle on this but I will ask the dumb question, are you coating the orings with petrolium jelly or trans assembly jelly? As far as the codes go, you might have a bad ECM. That mmany codes all at once seems suspect.

If the underneath of your transmissions and motor are really greasy and dirty. There's probably a leak from a bad gasket. I would suggest changing your trans fluid and filter (gasket comes with filter usually).

P0455 = Evap leak monitor large leak detected.
This code usually means the gas cap may have been loose or needs the rubber gasket.

P0500 = No vehicle speed sensor signal.
Vehicle speed sensor is located on the transmission near one of the axle shafts (it may need replacing).

P0700 = EATX controller DTC present.
This simply means you have transmission related codes.

P0732 = Gear ratio error in 2nd gear.
This code is of some concern, it means the transmission is slipping in 2nd gear. However the trans may be in limp mode due to the speed sensor code (limp mode means the trans starts out in second gear in order to at least get to a mechanic). The first thing I would do is have these codes cleared as there may be absolutely nothing wrong with the transmission (especially if you pull the trans dip stick and the fluid does not have a burnt smell. The vehicle should drive normally after that. If the check engine light comes back, have the codes scanned ASAP (before any other unrelated code sets). Chances are it may be the output speed sensor if this happens (easy fix). Hope this helps

Regards

limp mode as in computer limp in mode?check the trans fluid is it dark looking?, Need more info. Did you have the trans fluid changed recently? The reason i ask is when you change the trans fluid way after its do the new trans fluid is detergent type and fresh fluid can put the transmission in shock(Trans Shock). This can wipe out a transmission in 5 miles or so seen it too many times. Let me know how it goes. Lee

1998 dodge caravan code P0700-Transmission Control System (Malfunction Indicator Lamp Request) How do I fix this?

The p0700 means that there is a code in the trans controller. This code would then be the p1776. When the code was set the trans went into what they call "limp in mode". This is a safety feature that allows the vehicle to still driven in second gear so to make it to a repair shop or off the road.

P1776 is solenoid switch valve is latched in low/reverse. The most likely cause is the electrical portion of the trans which is called the solenoid pack. In order to replace this you need to remove the valve body inside the trans because it is bolted to the top side of it. I recommend making sure when the trans pan is dropped that there is no debris in the pan. If debris is found that the unit may need to be removed, torn down, and inspected to make sure there is no other problems.


Benjamin

The p0700 is a generic code for a transmission issue. If there is a Auto Zone around your area, have the car scanned for any DTC codes since it's free of charger there. Check the transmission fluid level after going for a drive to warm it up. Make sure that the transmission fluid is not low and that it's not burnt. If your due for a transmission service, take it to a transmission shop to have the transmission fluid and filter changed. Ask them to hook up the tech 2 scanner on the car to look for any DTC codes that indicates why the P0700 was triggered. Good luck and hope this helps, most transmission shop will scan for free of charger if your getting the transmission serviced there. Keep me posted, be glad to help.

Flush out your transmission with the correct type fluid, Mopar ATF+4, and correct filter. Disconnect Negative cable, to reset computer, for at least 24 hours. Check grounding straps for PCM, ensure they are tight and clean.
This method worked on my 2003 Intrepid SE, 3.5L, Police Pkg car.
Good Luck!!