LOST JEEPS :: View topic - Hard shift with P0700, P0714 and solution

re test the value , but make sure you measure the right pin , take a look of a orientation of the wiring harness

now after that I can ONLY read 13,70 at 2000 Ohm scale in the cold morning , about 55 F external temp , and 17,70 at 2000 Ohm scale after a ride with FT on mountain road . now I know I have no shortcut in the wiring , I have changed the valve body solenoid in April for the P0714 .........now the question is

why some time with a special scan tool I read a -3 F in the tranny when is hot ? and after a quick learn rise to 171 ?
is my TCM TOASTED ?
Only the DRBIII for the '05's and STARSCAN for the '06's will reliably read all the modules - however, TCM alters shift points\pressures until trans fluid temp is within normal operating range
If the -3* was correct, the trans would shift harder than with the 171* value, and difference would be immediately noticeable before\after relearn
any suggestion is much appreciated

Author:	uham [ Sun Jun 22, 2014 9:03 pm ]
Post subject:	Hard shift with P0700, P0714 and solution
My crd has always inconsistently shifted hard especially when starting out. I never had a code or an engine light indicating a failure. I thought hard shifting between 1st and 2nd / 2nd 3rd was normal for this vehicle because it always has done this every now and then since I purchased it. I drove it this way for years not knowing anything was wrong. Finally an engine light illuminated while it was hard shifting so I read the codes to determine the problem. It showed the following two codes: P0700 = TCM DTC (Transmission Control System malfunction) P0714 = Transmission Fluid Temperature Sensor circuit intermittent In reading what I could find on the internet about this I discovered the temperature sensor is in the Transmission Solenoid Assembly in the transmission. Some web sites said dealers suggested replacing the transmission to solve this problem. Well replacing the transmission is an expensive way to solve this problem and probably would not fix it any way. So I began an analysis on what could cause this problem. There are three major components involved, the Transmission Control Module (TCM), the Transmission Solenoid Assembly and the wiring harness between them. A thermistor in the transmission changes resistance when the temperature changes allowing the Transmission Control Module to compute the actual temperature of the transmission fluid. When the temperature rises the resistance goes down. To verify the proper operation of the thermistor I removed the connector from the TCM and checked the resistance of the thermistor at two different temperatures. The layout of the connector can be found in the FSM 8W-80-116. The wiring diagram is on page 8W-31-15 and the transmission connector is on page 8W-80-117. In the early morning I checked the resistance on the TCM connector going to the transmission between pin 54 (transmission temperature sensor signal) and pin 13 (speed sensor ground) and found 10,000 OHMs at approximately 75 degrees. I waited a few hours later and checked again and found 9,500 OHMs at approximately 80 degrees. This appeared to be the correct behavior for a thermistor. So the wiring harness and transmission appeared to be operating correctly. This implies the TCM or its connector is the problem. To remove the TCM and its connector I first removed the air filter box and the turbo vacuum valve assembly. I cleaned the TCM and removed its cover. The entire electronics portion is enclosed in a conformal coating (clear epoxy) making it difficult to replace any devices on its circuit board. So I closed it up and focused on cleaning the connector. After removing all of the dirt and grime from the connector I sprayed it with contact cleaner from r a d i o shack. I reinstalled the TCM and cleared the DTC codes with my scan tool. I test drove the Jeep and for the first time it shifted very smooth. The next day it shifted so smoothly that you almost could not tell it was shifting. It appears that the problem was just a bad connection in the TCM connector. Apparently the rough shifting was caused by false transmission temperature readings due to the variable resistance of the faulty connection. A rubber gasket around the connector would keep it clean if they would have designed it that way. I think I will wrap my connector with electrical tape to help keep it clean and dry. I bet this problem is not uncommon and like me they just put up with the rough shifting. The cost of the fix was the $5.00 I paid for the contact cleaner.

Author:	lars0247 [ Wed Jun 25, 2014 10:25 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
Did you have a consistent rough shift between 2 and 3, especially at light throttle? Please keep us posted on how this fix works. Good analysis by the way.

Author:	uham [ Sun Jun 29, 2014 9:33 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
Yes, there was a rough shift between 2 and 3 especially when the motor was cold. It tended to get smoother as it shifted a few times but it was never as smooth as it is now. Every shift 1-2 2-3 ... was noticeable but 2-3 was more pronounced at low rpm. It's been over two weeks now and shifting is very smooth with no codes.

Author:	silverkk [ Mon Jun 30, 2014 12:37 am ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
uham wrote: Yes, there was a rough shift between 2 and 3 especially when the motor was cold. It tended to get smoother as it shifted a few times but it was never as smooth as it is now. Every shift 1-2 2-3 ... was noticeable but 2-3 was more pronounced at low rpm. It's been over two weeks now and shifting is very smooth with no codes. you got off easy I replace sensors before the Trans rebuild and didn't help at all

Author:	lars0247 [ Sun Aug 03, 2014 2:04 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
This worked for me. I have had a month of trouble free shifting.

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Author:	jayleonfb99 [ Tue Aug 05, 2014 5:02 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
I'm going to try this tonight and will report back. Anything I should know before trying to remove the TCM?

Author:	ebbnflow [ Tue Aug 05, 2014 7:41 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
You don't need to remove the TCM. Just the connector. If you go to the forum on GDE, Keith has instructions on how to pull it. I just removed the vacuum assembly that is in the way. Removed TCM connector. Sprayed liberal amounts of contact cleaner on both wire connector and TCM connector. Let it dry for about an hour and then put it all back together. Also, unhook battery to be safe.

Author:	jayleonfb99 [ Wed Aug 06, 2014 10:40 am ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
http://www.greendieselengineering.com/j ... st/91.page

Author:	jayleonfb99 [ Wed Aug 06, 2014 4:28 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
So I cleaned the wiring harness. It was pretty easy. I have mixed results. I cleared the codes and started my test drive to find out that the harsh 2-3 shift was gone. I drove for another ten minutes and then my check engine light came on with codes P0700 and P2706 (Shift Solenoid F). Now when I try to clear the codes it doesn't reset the check engine light. Clearing the codes removed P2706 but P0700 still exists. Any ideas why that would happen? I'll keep driving to see if the harsh shift comes back, so far it hasn't.

Author:	ebbnflow [ Wed Aug 06, 2014 7:19 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
You need a DRBIII or equivalent scanner to read tranny codes. P0700 means there are codes stored in the TCM, but you can only read them with an expensive scanner. Did you let the connector dry out before reassembly? A wet connector can cause all sorts of issues.

Author:	jayleonfb99 [ Fri Aug 08, 2014 10:38 am ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
I re-did this strategy and made sure the harness was dry. It worked great until I let the vehicle sat over night. The next day it went right back to the same old harsh 2-3 shifting. It started with no check engine light, the first shift from 2-3 was harsh, and then the check engine light came on with codes P0700, P0714. What is on the other end of the wiring harness, on the transmission side? Can I clean that end? Where do I go from here?

Author:	Yeti [ Fri Aug 08, 2014 2:03 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
I have tested the pin 54 , but my multimeter can read something at 20k and read about 18,7 cold or hot , when at the dealer , with a DRBIII the temperature read is at -3 , after a quick learn go at 171 now with the tester in pin 54 if I moove the cable the value go at full range "open circuit" after said that I had no code and no limp mode any suggestion ?

Author:	Yeti [ Tue Aug 12, 2014 1:16 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
re test the value , but make sure you measure the right pin , take a look of a orientation of the wiring harness now after that I can ONLY read 13,70 at 2000 Ohm scale in the cold morning , about 55 F external temp , and 17,70 at 2000 Ohm scale after a ride with FT on mountain road . now I know I have no shortcut in the wiring , I have changed the valve body solenoid in April for the P0714 .........now the question is why some time with a special scan tool I read a -3 F in the tranny when is hot ? and after a quick learn rise to 171 ? is my TCM TOASTED ? any suggestion is much appreciated

Author:	Montezuma [ Tue Dec 09, 2014 2:55 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
BUMP I am having the same codes and problems. I also feel a vibration around +45mph and I am wondering if my TC is going out and thats why I am getting the trans temp code.

Author:	papaindigo [ Thu Jan 22, 2015 1:30 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
Be exceptionally careful removing and reinstalling the TCM 1. during removal be advised that the plug is on there really tight, at least the 2 I've dealt with were, and may require some gentle prying to get loose. 2. on reinstall the same is true BUT WITH an extra complication. The bolt threads into a nut that's captured in a hidden plastic housing. As such the nut can break loose easily. As you tighten the bolt use some extra pressure to push the plug in tight (e.g. do not depend on the bolt to pull the connection into place) and when the connections seats do not over tighten the bolt. Whether or not some sort of proper electric connection lube would help with #2 I have no clue.

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Author:	gmctd [ Tue Dec 09, 2014 5:28 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
TCM should have large red\orange tite-fitting silicone rubber gasket in the connector surrounding the pins - excludes foreign stuff Harness connector has same surrounding each individual female terminal with tite fit in the connector body - it is called a weather-pak connector, as nothing can get in there unless during an under-hood fire which melts the plastic connector(s)

Author:	gmctd [ Tue Dec 09, 2014 5:38 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
Yeti wrote: re test the value , but make sure you measure the right pin , take a look of a orientation of the wiring harness now after that I can ONLY read 13,70 at 2000 Ohm scale in the cold morning , about 55 F external temp , and 17,70 at 2000 Ohm scale after a ride with FT on mountain road . now I know I have no shortcut in the wiring , I have changed the valve body solenoid in April for the P0714 .........now the question is why some time with a special scan tool I read a -3 F in the tranny when is hot ? and after a quick learn rise to 171 ? is my TCM TOASTED ? Only the DRBIII for the '05's and STARSCAN for the '06's will reliably read all the modules - however, TCM alters shift points\pressures until trans fluid temp is within normal operating range If the -3* was correct, the trans would shift harder than with the 171* value, and difference would be immediately noticeable before\after relearn any suggestion is much appreciated Note: only reason STARSCAN won't read the '05's is because DCJ stupidly left out the '05 VIN code letter required in the list to select the '05 for scanning

Author:	Yosko [ Thu Jan 22, 2015 12:15 am ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
We're is the Tom connector new with jeeps 2004 liberty renagade having the sme problems with tranny

Author:	gmctd [ Thu Jan 22, 2015 11:46 am ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
Yosko wrote: We're is the Tom connector new with jeeps 2004 liberty renagade having the sme problems with tranny If your Liberty has a TCM, it will be on the passenger-side fender panel, behind the air filter box near the firewall bulkhead - you'll need to remove the TCM to access the connector If no TCM there, you will have NGC PCM on driver-side on the fender panel behind the battery, adjacent ABS module - NGC PCM has three connectors, with internal transmission control - you will need the '04 FSM to determine the correct connector and pin-out KJ FSM's available for download here: http://colorado4wheel.com/manuals/Jeep/KJ/

Author:	Mountainman [ Sun Mar 26, 2017 11:19 pm ]
Post subject:	Re: Hard shift with P0700, P0714 and solution
Just noting that here's another terribly hard 2-3 shift that was fixed by swapping TCM. Now I'll put the GDE tuned TCM back in and try a quick learn, I sure miss GDE'S shift points, but don't miss the whiplash, it was ridiculous!