Question about 2001 Dodge Grand Caravan

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Tcu location - 2001 Dodge Grand Caravan

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The ecu is located on driver side (right side facing vehicle) in front of battery.

Posted on Jul 14, 2009

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Trying to find TCU for automatic transmission,


Transmission Control Unit - TCI® Auto

www.tciauto.com/tc/electronics/transmission-control-unithtml/
For computer controlled transmissions, nothing beats the TCI® EZ-TCU™Transmission Controller. The EZ-TCU™ allows for maximum electronic control over .

Jul 10, 2015 | Cars & Trucks

1 Answer

My '02 vw jetta wont reverse. Takes 30 minutes to warm it up for reverse to work. Help?


Hello, you could have a transmission computer issue. Do you get any warning indicator lights or check engine lights when this happens? If the tcu (transmission control unit) is located in the passenger floorboard area then those are even more prone to tcu failure. If you have failure lights, I recommend you get the codes and get back to me asap. I will be more then happy to run them and let you know what your issue could be. Hope this helps. Regards, Tim 561 615 0103

Nov 24, 2014 | Cars & Trucks

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92 honda lx automatic is surging, not shifting right


Can be a few things. 1) Check the shift solenoids on top of the transmission (front). Remove them and clean out the screens. This would mean your transmission fluid is over due for changing. 2) Maybe it's the Vehicle Speed Sensor (VSS), locate and change that. It's on top of the transmission back under the thermostat area. 3) It could be your Transmission Control Unit (TCU). It's under the floor carpet on your passenger side near the firewall. There is a metal plater covering your ECU and your TCU. The TCU is the smaller box. Remove it, open it and look for burnt items. If you're handy you can replace those items. If you are replacing the unit, make sure it is from a known good one and it matches your car exactly, ie: EX, LX, DX, SE, sport shift button present?, etc... on the circuit board.

Below is a picture of the TCU opened up, here are the transmission codes that your car can display if you are inclined to jump the OBD wire plug to get the reading.

TCU Codes:

CODE LIST:

1-Lock-up solenoid 'A' circuit open or shorted.
2-Lock-up solenoid 'B' circuit open or shorted.
3-Throttle Position Sensor circuit open or shorted.
4-Vehicle Speed Sensor open or shorted - No signal from speedometer.
5-Shift Lever Position Switch circuit shorted.
6-Shift Lever Position Switch circuit open.
7-Shift Solenoid 'A' circuit open or shorted.
8-Shift Solenoid 'B' circuit open or shorted.
9-Counter shaft or transmission speed pulse generator open or shorted.
10-Coolant Temperature Sensor open or shorted.
11-Engine RPM (Ignition coil signal) open or shorted.
12-(No code 12 used)
13-Main shaft speed pulse generator open or shorted.
14-Linear (line pressure control) solenoid open or shorted.
15-Kick down switch circuit shorted.

064bef5b-bee7-4ef7-9ccb-98c692c687bc.jpg

Oct 12, 2013 | 1992 Honda Accord

1 Answer

Where is the TCU located on 1993 325is. I am


RIGHT REAR OF ENGINE COMPARTMENT IN E-BOX. NEAR DME "PCM" IN ENGLISH TERMS.

Oct 23, 2009 | 1996 BMW 3 Series

1 Answer

97 mitsubishi eclipse transmission problems automatic 2.0


I have a 95 Eclipse and I recently had to change out my TCU........ Transmission Control Unit, This should be located directly beneath the center console. First I would have the transmission services if problem persist then proceed to changing out the TCU you can get off of ebay. As far as i know there should be 3 Computers in our cars. 1 the Electronic Control Unit located behind radio 2 Transmission Control Unit located under center console and 3 Airbag Control Unit located under hood, Hope this helps.

Mar 03, 2009 | 1997 Mitsubishi Eclipse

1 Answer

Transmission stuck in forth gear check engine light is on.


Your TCU (transmission Control Unit) is bad. it is located behind the passenger side kick panel. you can purchase it on ebay for about 79.00 with exchange.

Lugnut61

Feb 08, 2009 | 1992 Honda Accord

1 Answer

Hello, I own a 93 toyota forerunner, 4*4, v6, automatic. Transmission was only shifting at very high rpms. Replaced trans with another out of identical vehicle, transmission will not shift, disconnected...


The transmission is controlled by the Transmission Control Unit (TCU).

Throttle position, rpm, and speed are input parameters to the TCU. The TCU has a default set of shift patterns. These shift patterns change over time based on your specific vehicle setup and driving habbits.

The shift patterns are only slightly affected by driving habbits over many driving cycles. But, changing the relationship between the throttle position and the actual speed being reported by the speed sensor can have an immediate effect on shift patterns.

While your speedo may now be correct, the realtionship between rpm and thottle position has not been corrected. That would take a gear change in the differentials.

The TCU can be reset to an inital learn base line. When this is done, the TCU will instantly learn the dynamics of your setup.

Any shop with an advanced ODB scan tool can reset the the TCU. The dealer or a transmission shop would be preferable.

You really should change your differential gears as opposed to resetting the TCU

This information was posted by ftgiles here

Jan 06, 2009 | 1993 Toyota 4Runner

1 Answer

'S' BUTTON LIGHT ON DASH


It is your transmission control unit (TCU) This is located under the passenger rug next to the main computer. I just purchased a reconditioned TCU for my 91 accord from an ebay seller called allcomputerresources. If he does not list a 91 accord TCU, then contact him to see if he can get one quickly. He will send it, and then you send the old one in as a core. My unit is running fine, and costs considerably less than from a dealer.

Oct 29, 2008 | 1991 Honda Accord

4 Answers

TCU


the tcu is on the right ( passenger) side footwell, under the carpet..the carpet has velcro tabs on it that will allow it to be pulled back...once the carpet is back there is a metal cover over the computers that is held on with 4 10mm bolts..take them out and you can remove the tcu!

Aug 09, 2008 | 1992 Honda Accord

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