Car does not run ,I check the code ,it is P0700

You could try that first but it could also be a wiring problem.
Usually when the sensor fails your speedo stops working.

P0700 Transmission Control System Malfunction OBD-II Trouble Code Technical Description Article by Dale Toalston ASE Certified Technician Transmission Control System TCS Malfunction What does that mean? Many vehicles have a control module for the automatic transmission called a transmission control module (TCM). The engine control module (ECM) communicates with the TCM to monitor the automatic transmission for faults. If the TCM detects a fault in the automatic transmission and sets a transmission related fault code, the ECM is informed of this also and sets a P0700 in the ECM memory. This illuminates the Malfunction Indicator Lamp (MIL) to let the driver know there is a problem. If this code is present and the MIL (Malfunction Indicator Lamp) is illuminated that basically means there is at least one transmission code set in the TCM's memory. P0700 is an informational code only. It doesn't point to a direct fault in the engine, only a general fault in the transmission. More diagnosis is necessary to identify what the transmission fault is. This requires a scan tool that will communicate with the transmission module. Symptoms Symptoms of a P0700 DTC may include: Malfunction Indicator Lamp (MIL) illumination The transmission may exhibit drivability problems like slipping, etc. Causes More often then not, the cause of this code is that there is a transmission problem of some kind. The TCM detected the problem and set a code. P0700 means that a fault code is stored in the TCM. However this doesn't rule out the possibility of a failed PCM or TCM (unlikely). Possible Solutions For a P0700 the only real solution is to acquire a scan tool that will communicate with the transmission control module. Extracting this code from the TCM will be the first step in repairing the fault in the transmission. If the TCM compatible scan tool will not communicate with the Transmission Control Module then that is a good indication that there may be a fault with the TCM itself. Register now to ask a question (free) Related P0700 DTC Discussions pt cruiser P0605, P0700, and P1391 What does P0605, P0700, and P1391 mean....I just put in a new catalyst on my car for smog but light engine turned back on...and I can't seem to know what is wrong ...please help me out here... 2002 Dodge Intrepid P0700 & P0841 code my code scanner come up with the codes PO700 and PO841. the 700 code i was told it was the input and output sensors.i had those changed a month and a haft a go. now they are back on and the po841 is on were is the 841 sensor located the machanic i go to tells me my transmission has to be replaced bu... ODB Codes Dodge Caravan 2005 P0700 and P0522 Hello I have a 2005 Dodge caravan and need a fix for these codes please.. P0700 and P0522 came up.. basically ths is stuck in limp mode or 2nd gear.. I am thinking I need a new Transmission Control module.. but can anyone confirm that... 2001 Honda Civic accord p0700 and p0740 Hi I went to get my Honda civic check and p0700 and p0740 codes came up the car has a lil leak But however the car is not slipping or anything. it's not showing no Transmission sign issues. I wanted to know what could possibly be the problem thanks you... 2005 Dodge Caravan P0700 and P0420 I have a 2005 Dodge Grand Caravan.The other day the check engine light came on.I stopped at auto parts store and they checked codes for me.P0700 and P0420 are the codes that came up.What do these mean and why did they show up?My van is running fine.Do I need a tuneup?Or is it something else?I am hop...

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P0700 is a Transmission code which is usually followed by a second code. You can start by checking your transmission fluid level. Also double check to see if you have another code besides the P0700.

P0700 is a generic transmission code

P0785 is a shift solenoid malfunction in the transmission probably 3-2 downshift. Someone will have to spend some time checking the decision tree for the P0785 code.

Hi vladi,P0700 means that Transmission Control System (MIL Request), Diagnostic Trouble Code Table maybe can help you .

CHECK OUT http://www.obd-codes.com/p0700 & P0740 Torque Converter Clutch Circuit Malfunction

The P0700 means Transmission Control System (MIL Request)
The P0760 means Shift Solenoid "C"
The P0871 means Transmission Fluid Pressure Sensor/Switch "C" Circuit Range/Performance.
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spare transponder key

(DTC) CODE # P0700....Transmission Control System (MIL Request) Translation: Transmission Control Module (TCM) Malfunction or Failure. P0700 Information Code The Transaxle Control Module (TCM) monitors the malfunction of sensors and actuators relating to transaxle control. If any malfunction is detected, the TCM informs the PCM by sending a signal (P0700 code). P0700 means that a code has been set in the TCM. This code is for information ONLY. If this code is present, check for transaxle codes. So basically, the P0700 code is telling you to check the TCM for a transaxle DTC. The TCM can not turn on the check engine light so it has the PCM do it.

I hope this helps....let me know if I can assist further !!

P1281 Engine Is Cold Too Long P1694 No CCD Messages Received From ECM

P0700 Transmission Control System Malfunction

For the P0700 I would check your tps sensor first to make sure it is good. This is a common failure in this vehicle which can sometimes show as a transimission malfunction.

Hope this helps, if you want alot more info about jeeps goto www.cherokeeforum.com

P0700 is a code that tells u the TCM [transmission Control Module] has requested that the PCM [Powertrain Control Module] turn on the check engine light, u now need to ge the TCM tested for the transmission fault code(s) that were stored when the check engine light was turned on by the TCM through and by the PCM