Po740 and po700

P0740 is the Torque Converter. It is actually attached to the transmission. When I was getting code PO740, I had to have the torque converter replaced. PO700 is the Transmission Control Module. This is not inside the transmission but rather part of the control side of the transmission. You did not say how many miles you have on it, You did not say whether you have ever replaced the transmission fluid before, I do not trust mechanics, I learned how to work on my vehicle myself. I cannot replace a transmission or a motor but, I have 330K miles on my Pentastar 3.6L Engine and original transmission, You must change your transmission fluid but if you went over 100K miles and never replaced it, you have more than likely caused the transmission to have internal failure, Some people do not believe in replacing the transmission fluid. The reason you must change it, is because the fluid breaks down and cannot cool the transmission down. After you change it at 100K , I myself change mine then after another 50K then after another 20K and I change it if I notice even the slightest slip in the transmission,

P0700 means a indicative transmission malfunction, allways this code appears with other, in your case, P0740.
The P0740 code pertains to the TCC solinoid in the transmission, and often comes and goes, so it may not reappear for some time... enough for you to get through the inspection before you decide to have the transmission diagnosed. The torque converter is a device mounted between the engine and transmission. This device transfers engine power to the trans. This code may indicate posssible failure to engage.

Hope helps.

Hi there:P0700 means a indicative transmission malfunction, allways this code appears with other, in your case, P0740.
The P0740 code pertains to the TCC solinoid in the transmission, and often comes and goes, so it may not reappear for some time... enough for you to get through the inspection before you decide to have the transmission diagnosed. The torque converter is a device mounted between the engine and transmission. This device transfers engine power to the trans. This code may indicate posssible failure to engage.

Hope this helps.

Your problem is most likely because you are describing your vehicle as a "Gs". The only similar listings in the catalog are for a "GSX". (The parts counter person probably has no clue that there is a difference) The GSX is only built in a turbo version, therefore you will not find a water outlet for the non-turbo version...it simply does not exist.

Now, if you simply describe it as an Eclipse, there are water outlets listed for the turbo 2.0L, the non-turbo 2.0L and the non-turbo 2.4L engines. You did not bother to mention engine size, so I will list the part numbers for BOTH of the non-turbo engines.

For the 2.4L engine: Compressor Works Part Number 815517

For the 2.0L engine: Compressor Works Part Number 815576

Both are available from AutoZone

P0700: Transmission Control Malfunction.

P0740 : Torque Converter Clutch Circuit Malfunction.

Looks like you have some transmission electronics problem.

P0740 Torque Converter Clutch Circuit Malfuction
P0700 Transmission Control System Malfunction

http://autorepair.about.com/cs/troubleshooting/l/bl_obd_7.htm

Best to have a transmission place work on this.
Here are the meaning of the codes:
P0700 Transmission Control System Malfunction
P0740 Torque Converter Clutch Circuit Malfunction

It maybe cheap to fix like a bad sensor. Or it maybe something serious going on. Best to have a transmission shop check it out.
Good luck.

you can get all the required parts at either the local garage this will be second hand. you can get this at the mitsubishi service center or at  www.autozone.com

anytime you do the self-diagnostic you will almost always get those 2 codes.

12 - direct power input to the PCM has been disconnected within the last 50 key-on cycles

55 - End of error messages

P0700 means that a tranny code does exist...
rate me solved...I answered your request, right?