Transmission code P0700 has appeared, and it can't shift past 2nd gear.

The P0700 code indicates that there's a malfunction with your vehicle's Transmission Control Module (TCM). This computer monitors your transmission and works with the Powertrain Control Module (PCM) and Engine Control Module (ECM) to shift gears when necessary
copy and paste
https://www.solopcms.com/blog/p0700-code-means-fix/

well; all those p07xx codes are hard transmission errors
or shifter errors.
check levels yet on the tranny, not look like tar or smell burnt?
do it by the book do not guess, how. or horrible errors happen.

tranny 42RLE or 45RFE used .then.
P0731, means 1st gear ratio wrong. (means slipping)
732 means 2nd gear slips.
734 means 4th gear slips.

the causes are many
why are you not asking any shop to diagnose it
box leaks and leaked out ATF , and is way too low.
box pump is bad, weak.

he will scan it first . and even see more errors than you saw.

no miles on car told 20 year old and 250,000 miles on it ,or more?

Codes P0733 and P0736 on a 2002 Jeep Liberty refer to transmission-related issues. Here's what each code indicates: P0733 - Gear 3 Incorrect Ratio: This code indicates that the transmission is not shifting into the third gear correctly. It suggests a problem with the gear ratio between the input and output shafts of the transmission when the third gear is engaged. This could be caused by issues such as a faulty transmission solenoid, a worn or damaged gear, low transmission fluid level, or internal transmission problems. P0736 - Reverse Incorrect Ratio: This code indicates that the transmission is not shifting into the reverse gear correctly. It suggests a problem with the gear ratio between the input and output shafts of the transmission when the reverse gear is engaged. Possible causes could include a faulty transmission solenoid, a damaged or worn reverse gear, low transmission fluid level, or internal transmission issues.

wow no year stated, its 1996 and never but how new
its a KK or KJ jeep 2002 to now. 14 years of jeep.
as is what transmission used, and if 2wd or 4wd.????
first the p0700 code
ONLY, means
1: SCAN TOO you using is junk, and old,
or
2: means the TCM needs to be scanned by self. to see all codes in the TCM.

my guess is you need a real scantool..

700 means, trans has errors, stored, ASK IT NOW.

1: fuses good,
2: is TCM plugged, in? some Liberties have seperate PCM and TCM.
3: the TCM most see all sensors working (where ever it hides)
if not , it will not ever upshift.
speed sensors dead, or not plugged in?
PCM cant talk to TCM.// oops....
and more.
the problem is your tools, (missing a real jeep scan too)
my INNOVA 3160 can see those errors, but ive never done a liberty, in fact i don't consider it a real jeep.


The TCM is JUST a computer (a simple microprocessor)
it has inputs and outputs (shift solenoids)
if the inputs lie, it can not shift or shifts wrong, or goes to limp home and skips gears.
all TCM work like that, and not scanning it is a FAIL.

you must scan it fully. to get all CODES.

Code 700 is a generic code that means there is a problem with the transmission control module. It could be the module, or something else causing the module not to work correctly.
You would need a scanner and a repair book to get the test procedure.

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 Transmission Control System Malfunction P0713 Transmission Fluid Temperature Sensor Circuit High Input Full list of the OBD2 DTC from P0700 to P0999

lunges?
well is then surging,? (rpm)
or is the transmission just slipping, or shifting wrong.
only you an tell this. not us.

like a standard, you mean manual stick shift??
but you never said what trans is there. auto or stick? so?

Buy the input and output sensors and replace your problem should be solved the cost about $60. for the two.

p0700 is pretty much the generic code for saying the computer that controls your transmission has a problem, it may not be the actual computer its self, but one of its sensores, or a bad wire, i would recomend taking it to a reputable transmission shop