Santa 06 has p0734
2006 Hyundai Sonata

Santa 06 has P0734

(2006 Hyundai Sonata)
Yesterday I turned up my santa 06, it worked but as I set the transmission hand lever in R and pressed the paddle the car didn't move reverse back however the hand lever transient smoothly between P, R, N, D, and on D the car moves forward.
Furthermore when I but the lever on manual mode it shows (3) on dashboard instead of 1 or to. Actually the car stuck in gear 3.
I checked the fluid level, it was okay, but full of bubbles.
I got it diagnosed by OBD II So it showed P0734.
What shall I do?
How long have you had this problem? Two days
Tags: hyundai, sonata
2 answers & 3 comments
Popular Answer
on November 08, 2018
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on November 08, 2018
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on November 08, 2018
The specific code indicates that 4th gear is showing the improper gear ratio. This can be a sensor concern or an internal mechanical concern. Further testing is needed to find out what is wrong.
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on November 08, 2018
The hand lever position displayed on dashboard, which make me exclude a sensor malfunction.
Am I right?
on November 10, 2018
Even if it shows that you have selected "D" or whatever gear you are in, it does not mean a problem otherwise does not exist. I cannot say for certain you have a sensor problem or not. I can only say that testing needs to be performed to find out further what is happening. This will need a Hyundai GDS diagnostic test computer (or high quality equivalent) to check out.
on November 10, 2018
I got it

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