P0700 Transmission Control System Malfunction
OBD-II Trouble Code Technical Description
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 of a P0700 DTC may include:
- Malfunction Indicator Lamp (MIL) illumination
- The transmission may exhibit drivability problems like slipping, etc.
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).
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.
Related P0700 DTC Discussions
- 2004 dodge ram 1500 code p0700
i have a2004 dodge ram with code po700 i know its a tranny code , when i try to clear it , it comes right back up and wont let me clear it can anyone help...
- 08 chevy colorado p0700
i have a 2008 chevy colorado 5 cyl 4 wheel drive my check engine light came on and onstar says the code is p0700 what is the code and what is the fix for this the common cause and the common fix...
- Dodge Caravan Trans Codes p0700 p0731 p0720
I have 2002 Dodge Grand Cavaran. Of late speedo goes up and down at stop light / down shifts harsh / engine rpm goes up and down / seems to slow down sometimes on take off. Scanned faults codes P 0700 / P 0731 / P 0720. What can the possible cause be...
- 2002 dodge intrepid p1776 p0700 p0138
p1776 p0700 p0138 p0700 Those are the codes that came from the scanner test. This problem only happens when I accelerate very fast, hit a bump that is large enough to make the car jerk or when I brake really fast. What happens is that my car's transmission stops shifting like its stuck in a certain...
- 2004 Chrysler Sebring P0700 codes
2004 Chrysler Sebring Sedan LX 2.4 DOHC Has anyone had the following symptoms and/or solution(s)? Thanks in advance! Initial problem is whining noise coming from trans, slipping in 3rd and 4th but able to nurse it 20 miles home. Intermittent odd odor coming from A/C (closed / recirculating air...n...
Need more help with a p0700 code?
If you still need help regarding the P0700 trouble code, please post your question in our FREE car repair forums.
NOTE: This information is presented for information purposes only. It is not intended as repair advice and we are not responsible for any actions you take on any vehicle. All information on this site is copyright protected. If you want to share this article or information with others, please link to this page, don't copy and paste it elsewhere.