ELANTRA 2002; PEADO IN CHANGES P0500 AND P05001

Good afternoon

I have a problem in the transmission of my Hyundai Elantra GT 2002

The changes only make them below 1900 rpm and if I accelerate more the transmission is neutralized and stays in the first until putting in neutral and returning to D. apart produces a pounding when making the changes.
The Scanner shows the P0500 codes (speed sensor) and P05001 (out -rank speed sensor operation)
the strangeness with this is that the speed of the board marks well and I think the board uses the same sensor.

I appreciate any help

thanks

Dear.
For your knowledge in automatic gearboxes, it is not enough to make a scanner to diagnose a problem, you also have to verify the line pressure in its different marches and check the oil status to see if it has metal waste of some kind. Once the above you can determine if the failure is electronic, hydraulic or mechanical.
In your case when indicating speed sensors, it refers to turbine inlet and output sensors which compare the speed of said component.
I recommend you approach a specialized service where you can carry out these tests and confidence to execute the correct repair according to your case.
Greetings
Marco

I advance

the P0500 and P0501 fault code was produced by the right front wheel sensor, replace it and the car began to make the changes well but only for the first minutes of operation once the car marks a little more than 1/4 of temperature running the check Engine Code P0715 (malfunction in the circuit of the input/turbine speed sensor) and now the fault it produces is; That it stays in a single change (third), when braking does not return to first and at the time of accelerating it is very heavy. The next day when it starts for the first time it works well again but only for the first minutes ..

I would appreciate any opinion or help

thanks