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Does my vehicle have a separate transmission control module?


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Hi to all Dodge forum members.

I have a 2013 Dodge Journey SXT, right-hand drive (Australia) with a 3.6lt petrol engine. It has a 6-speed automatic transmission that is experiencing random mishaps.

At times, when totally unexpected, the transmission will disengage (or selects neutral), and after a short period will re-engage, generally with a thump. I turn the car off for 5 minutes and all seams to resume OK. This can re-occur within minutes or it will disappear for a length of time.

I am almost certain it is the commands from either the transmission control module or the main ECU.

Firstly, I would like to know... Does this vehicle have a separate transmission control module or is the transmission controlled directly form the ECU?

Cheers, Jock the Rock

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If you have no change the transmission fluid, drop the pan and change it, it may fixed your problem, Once I have a car with 160 000KM that was doing the same and 2 ATF changes fixed the problem, the car lasted 500 000 KM, I junked when the engine snap the timing chain, but transmission still was good.

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On 5/14/2022 at 2:14 AM, luzmina said:

If you have no change the transmission fluid, drop the pan and change it, it may fixed your problem, Once I have a car with 160 000KM that was doing the same and 2 ATF changes fixed the problem, the car lasted 500 000 KM, I junked when the engine snap the timing chain, but transmission still was good.

Thank you. I suspected that the ECU does the transmission as well.

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On 5/12/2022 at 3:51 PM, John/Horace said:

It’s built in to the main computer, they call it a power train control module or pcm.

 

You need to have someone scan and retrieve stored codes. Could be torque converter solenoid or various other sensors.

Thank you. I suspected that the ECU does the transmission as well.  I will need to look into the programming of this unit or replace it.

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  • 3 weeks later...

To read error codes on this transmission you need a code scanner connected do the engine module, and from there you can read transmission errors.  This can be the range sensor, inside the transmission, but i´m pretty sure you do not need to remove the transmission to test/replace it. Low oil level, oil pump or oil pressure sensor should be tested also ...

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