Question about 1994 Dodge Caravan

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94 caravan in limp mode sometimes

Replaced the tcm, input speed and output speed sensor. Check engine light no longer comes on. No diagnostic codes showing up for transmission, just the 1-2 battery disconnected then 5-5 end codes.

This tranny serviced regularly. Last fluid change showed a very clean pan with little dust held to the magnet and not metal chunks. Output speed sensor had a few small metallic slivers stuck to the magnet, but nothing chunky.

It will clear limp mode by switching ignition on and off about a dozed times. Because it shifts fine when not in limp, I am wondering what else could be kicking it into limp, and if it is worth investigating.

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  • 141 Answers

I have had luck replacing the solenoid packs on these models but i usually had a 12 shift or 23 shift code stored in the tcm controller

Posted on Dec 05, 2012

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Posted on Jan 02, 2017

jsmes1027
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SOURCE: 2002 Dodge Caravan stuck in

Change the output speed sensor as well and clear the vehicle codes either via a scanner or disconnecting the battery.Also make sure the transmission is at the proper fluid level.

Posted on Aug 30, 2010

  • 1 Answer

SOURCE: 2003 dodge neon PO700 (tcm)

You dont have to pull the tranny to fix this. Some so called "experts" on here shouldnt be giving advice if they dont know. The solenoid pack is located in the front the transmission just below the air filter and in front of the input speed sensor you just replaced. Unbolt the connector with a 10mm socket then the bolts connecting to the tranny. Replace with a new one 140 bux or close(get a new one). Installation is vice versa. Easy fix for any person who is mechanically inclined. Always get a second or third opinion when asking a thousand dollar question on any website. Some people think they know....but they dont.

Posted on Oct 17, 2010

  • 432 Answers

SOURCE: 2001 dodge stratus wont shift

Good Evening, I have a dumb question. have you cleared any current or history codes in the transmission? They will default with codes in the system. Also make note on what they are. If any and we can go from there, and yes tcm would be the next place to go but more info is best as far as codes and such.

Posted on Oct 28, 2010

  • 1 Answer

SOURCE: trans in limp mode with codes P0700, P0733 and P0734

1998 dodge caravan code P0700-Transmission Control System (Malfunction Indicator Lamp Request) How do I fix this?

Posted on Nov 17, 2010

cansmo
  • 2431 Answers

SOURCE: the code p0720 show on

P0720 Outputspeed sensor circuit failure. The ECM uses this sensor in comparison to the input speed sensor and then command a gear change. This sensor has a very high failure rate. so did you replacei t with a new on and you still got this code, First the location its to the right of the manual shift lever.shaft. What get me is that metal chips that are on it.then there are the non magnetic chip that youll need to inspect for. Go the the transmission dipstick,engine running vehicle in park,safety brakes on,and wheels block. Check the fluid level are you at the correct level,? If not correct it. run the transfluid on your hand,do you see any non metalic chip.? It will be silverish or goldish in color. is it burnt (blackish). If you see any of these you have a transmission failure,and a new or rebuilt will be needed.But before you jump to that try to change the fluid,.Why? because of the metal chips in there. and retest the vehicle, put the proper fluid in it .Its AFT-4 that is what it calls for,and replace the filter. Here is one more area of concern do you hear a whinning noise as you drive the van? If you do then the transmission has failed and no fluid change will help.you may be looking for rebuilt or replacement.

Posted on Apr 26, 2011

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Only code p0734 2001 caravan


Hi there:
This code means that the transmission is slipping in high gear and the TCM (TRansmission Control Mocule) logic thinks it has incorrect ratio since it monitors input and output speed. Keep in mind that TCM uses input from the input speed sensor and output speed sensor to determine gear ratios. The TCM then compares the known gear ratio to the calculated gear ratio for the current range.


Check HERE test procedure.


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Aug 24, 2012 | 1997 Dodge Caravan

1 Answer

Fault code 000C


Hi Mati:
Diagnostic trouble code (DTC) TCM-000C is stored if the control module detects that the vehicle speed and engine speed (RPM) signals do not correspond with the programmed values and that an "incorrect" gear is being used in relation to the calculated gear. This is because solenoid S2 is stuck in open or closed position.

Diagnostic Codes: 000C, 002A, 002B, P0733, P0734, P0756
Tests/Procedures:
1. Clear codes from the Transmission Control Module (TCM).
2. With fluid hot, check transmission fluid for quality and level.
3. Test drive the vehicle. Accelerate from 20-60 MPH when in geartronic mode, gear 4. While doing this, watch input and output speed sensors with a scan tool.
4. If the code returns, the transmission is slipping, and the input and output speed sensors are updating, the problem is internal to the transmission.
5. If transmission is replaced, test ATF for coolant contamination per TNN 43-48. Replace radiator if necessary.

Potential Causes: Transmission Mechanical Problem

Tech Tips:
TCM-002B 4th gear. Incorrect gear ratio. This code sets when the actual gear ratio deviates by more than 10% of what is programmed into the TCM.
TCM-002A 3rd gear. Incorrect gear ratio P0756 - TCM-000C - Shift solenoid S2, hydraulic malfunction If the transmission is replaced, be sure the mating surfaces between the engine and transmission are bare metal and clean. If not, the engine may not start after assembly.

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Feb 24, 2012 | 1999 Volvo S80

2 Answers

Can I replace the transmission solonoid on a 98 Town and Country Van without resetting the computer?


It depends. Are there codes in the computer now? Has it bee reset since you replaced the input speed sensor? If the codes are still in there, the transmission may still be in limp-in mode.

Your transmission is computer controlled. Trying to diagnose or repair it without the ability to interface with the computer that controls it about the same as surfing the internet with no monitor. If you push the right buttons and click your mouse just right, you might get to the page you are looking for (not likely, but possible). However, when you do get there, you still won't know it....

Feb 21, 2012 | 1998 Chrysler Town & Country

2 Answers

My dodge caravan 3.3L shows 5 malfunction codes what do they mean po455 po846 po500 po700 po732


P0455 = Evap leak monitor large leak detected.
This code usually means the gas cap may have been loose or needs the rubber gasket.

P0500 = No vehicle speed sensor signal.
Vehicle speed sensor is located on the transmission near one of the axle shafts (it may need replacing).

P0700 = EATX controller DTC present.
This simply means you have transmission related codes.

P0732 = Gear ratio error in 2nd gear.
This code is of some concern, it means the transmission is slipping in 2nd gear. However the trans may be in limp mode due to the speed sensor code (limp mode means the trans starts out in second gear in order to at least get to a mechanic). The first thing I would do is have these codes cleared as there may be absolutely nothing wrong with the transmission (especially if you pull the trans dip stick and the fluid does not have a burnt smell. The vehicle should drive normally after that. If the check engine light comes back, have the codes scanned ASAP (before any other unrelated code sets). Chances are it may be the output speed sensor if this happens (easy fix). Hope this helps

Regards

Oct 26, 2011 | 2002 Dodge Grand Caravan

1 Answer

My 2009 Hyundai Sonata quit accelerating while driving in town. The ESC and check engine light came on. I was able to turn the car off and back on and the ESC light went off and acceleration worked...


This may not be your problem but it does bring the vehicle in fail safe you may have a warranty
Group TRANSAXLE
Number 09-AT-016
Date AUGUST, 2009
Model
1999-SONATA
2001-ELANTRA, SANTA FE & XG
2003-TIBURON
2005-TUCSON
2006-AZERA
2007-ENTOURAGE

Subject
AUTOMATIC TRANSAXLE DIAGNOSTIC TROUBLE CODES P0715, P0716, P0717, P0720, P0721 & P0722

An improperly functioning input speed sensor or output speed sensor may result in the following conditions:
^ "Check Engine" light on
^ Harsh P-R or P-D engagement shock
^ Transaxle in 3rd gear fail-safe
^ Diagnostic trouble codes 1. Using a GDS, check for DTCs in both the "Engine" and "Automatic Transaxle" menus. Record the DTC and description.
2. From the GDS, select:
^ Vehicle
^ "Auto Transaxle" menu
^ "Current Data"
^ "Input speed sensor" and "output speed sensor". Drive the vehicle and monitor the input and output speed sensors. If the sensors show:
^ Continuous output, the wiring currently has no open/shorts. Go to Step 6.
^ No output, go to Step 3
3. Check the wiring harness visually for an open circuit or short circuit to ground. Check for a pinched harness at the PCM/TCM attachment bolts.
4. Disconnect the connectors at the input and output speed sensor and PCM/TCM. Check for bent pins or pins not fully inserted into the connector.
5. If a harness open/short is found, repair or replace the ECM control harness between the PCM/TCM and transaxle and go to Step 8. If not, go to Step 6.

Aug 22, 2011 | Hyundai Sonata Cars & Trucks

1 Answer

Would like to know what the process is to reset the TCM on a 2002 dodge grand caravan, the van while driving it stays stuck in 2nd gear was told that the TCM needs to be rest i need th precdure how to rest...


if its stay in second speed the computer put the tramission in limp mode because there a problem in the trasmission you need to get your van pass on a scanner to see the code it could simply be the input or output sensor there sensor on the transmission and to reset that simply disconnect the battery for 2 minute after you see your trams will change all speed let me no and thanks for using fixya

Mar 01, 2011 | 2002 Dodge Grand Caravan

1 Answer

2002 Dodge Caravan stuck in Limp Mode. Changed input speed sensor, TCM and relays. Help me


Change the output speed sensor as well and clear the vehicle codes either via a scanner or disconnecting the battery.Also make sure the transmission is at the proper fluid level.

Aug 30, 2010 | Dodge Caravan Cars & Trucks

2 Answers

99 Dodge caravan - Check engine light on, limp mode, no speedometer. What's up with this trusted friend?


Its very possible that the transmission output speed sensor has gone bad. The output speed sensor is what the speedometer reads for vehicle speed. When you open the hood and look straight down at the front of the transmission you will see two sensors that screw into the side of the transmission case that are about the size of a half dollar, the output speed sensor will be the one on the far right side.

Mar 14, 2010 | 2005 Dodge Grand Caravan

1 Answer

Check engine light with following codes p 1529 p0720 p0715


P1529 indicates that your TCM asked the ECM to turn on the check engine lamp.

The range switch and the output speed sensors are the items that are abnormally affecting the operation of the transmission. The diagnostic logic in your computer can distinguish these issues from one another, so you'll definitely want to do both. You have no diagnostic code for the input speed sensor (P0715) listed, so I have made no recommendation to replace it. In my opinion, it's not a labor-intensive repair, so I wouldn't recommend replacing it unless you have reason to believe it's bad.

DTC - P0720 (OUTPUT SHAFT SPEED SENSOR SYSTEM)
Code No. P0720 Output shaft speed sensor system
If the output from the output shaft speed sensor is continuously 50% lower than the vehicle speed for 1 second or more while driving in 3rd or 4th gear at a speed of 30 km/h or more, it is judged to be an open circuit or short-circuit in the output shaft speed sensor and diagnostic trouble code No. P0720 is output. If diagnostic trouble code No. P0720 is output four times, the transmission is locked into 3rd gear or 2rid gear as a fail-safe measure.
Probable cause
Malfunction of the output shaft speed sensor
Malfunction of the transfer drive gear or driven gear
Malfunction of connector
Malfunction of the TCM

DTC - P0715 (INPUT SHAFT SPEED SENSOR SYSTEM)
Code No. P0715 input shaft speed sensor system
If no output pulse is detected from the input shaft speed sensor for 1 second or more while driving in 3rd or 4th gear at a speed of 30 km/h (19 mph) or more, it is judged to be an open circuit or short-circuit in the input shaft speed sensor and diagnostic trouble code No. P0715 is output. If diagnostic trouble code P0715 is output four times, the transaxle is locked into 3rd gear or 2nd gear as a fail-safe measure.
Probable cause
Malfunction of the input shaft speed sensor
Malfunction of the underdrive clutch retainer
Malfunction of connector
Malfunction of the TCM

Is needed replace.

Nov 04, 2009 | 2001 Hyundai Elantra

2 Answers

2002 DODGE GRAND CARAVAN STUCK IN 2ND/3RD, NO SPEEDOMETER...


the tcm is located in the fender well behind the bumper drivers side black box check the wiring for bad cannection,

let us know what you find there are thousands of us with the same problem

dan

Aug 13, 2008 | 2002 Jaguar X-Type

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