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Code p0720 please help

Old 03-16-2019, 12:40 PM
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Code p0720 please help

Hello: I have a 2010 g37s convertible and have a check engine code p0720 (revolution speed sensor) and u0101 (not communication with the transmission control module) I see a couple videos how to change it for Do it myself but there is no videos for the infiniti and I don't find the sensor in my car,the problem is I call an infiniti dealer for service and they tell me that only if I change the sensor the problem don't fix,I have to buy additionally the transmission module,oil,etc to fix the problem and it cost me approx $2,500 dollars.
in all the videos I see for other models don't say nothing about replace all the parts,only the sensor,
I don't know what to do,any help or advice please? Thanks

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Old 03-16-2019, 10:44 PM
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the auto trans in our cars are electronically controlled and all sensors, components, and module are mounted inside the trans. in order to get at that sensor they would need to drop the trans pan to access it. the trans module or shift plate or whatever they or you want to call it is bolted to the valve body along with the sensor which is mounted inside the housing somewhere. in addition i doubt changing that sensor will fix your problem due in part because when i see codes such as an internal speed sensor fault and not the vehicle speed sensor that set the malfunction light there is actually something mechanical that has taken a dump. meaning either something is worn out, broke, or come apart/loose.
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