Question about 2009 Hyundai Azera

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Ihave code p0731 stuck in 1st ratio .. what mean that code?

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Usally it's a shift solenoid not closing or a bad clutch pack unlikely if your mileage is under 200k. Have found that this solenoid part# S9852 by BWD goes bad most of the time on Fords. It's a dual solenoid pack they are normally open flow with no power and closed when energized.

Posted on Nov 25, 2015

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P0731 - Gear 1 Incorrect Ratio
Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
Tech notes
Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

When is the code detected?
P0731 is detected when A/T cannot be shifted to the 1st gear position even if electrical circuit is good.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Incorrect transmission shifting
P0731 Description
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:

Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes

If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
P0731 Information for specific makes
P0731 ACURA
P0731 AUDI
P0731 BMW
P0731 CHRYSLER
P0731 DODGE
P0731 FORD
P0731 HONDA
P0731 HYUNDAI
P0731 INFINITI
P0731 JEEP
P0731 KIA
P0731 LAND-ROVER
P0731 LEXUS
P0731 MAZDA
P0731 MITSUBISHI
P0731 NISSAN
P0731 SATURN
P0731 SUBARU
P0731 SUZUKI
P0731 TOYOTA
P0731 VOLKSWAGEN
P0731 2002 NISSAN ALTIMA SEDAN
P0731 2004 NISSAN ALTIMA SEDAN
P0731 2003 NISSAN ALTIMA SEDAN
P0731 2005 NISSAN ALTIMA SEDAN
P0731 2006 NISSAN ALTIMA SEDAN
P0731 MERCEDES-BENZ

Posted on May 09, 2014

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Obviously refers to auto trans , could just need the trans fluid level topping up or even changing , if this does'nt resolve the problem then a more in depth diagnosis would be required at a repair shop as could be the ECU for example but do the fluid checks and go from ther ,keep me posted

Posted on May 09, 2014

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1 Answer

What does PO731 means?


Hope, PO731 means Gear 1 incorrect ratio. a few things in/on tranny could throw this code something as simple as dirty trans filter,shift solenoid, trans control module to more serious internal damage. Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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Connie,
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1 Answer

P0731


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Transmission has problem shifting have to put automatic trans into 1st to gett to go reads codePO731 on code reader any ideas?


DTC P0731 - Gear 1 incorrect ratio

Input and output speed sensors in the transmission are the most likely cause, They fail alot, relatively cheap to repair, if left ignored can burn up the transmission.

Good luck.

Feb 17, 2011 | 2000 Hyundai Elantra

1 Answer

The code p0713 and p0731 come up i dont know what to do


you will need to have your transmission looked at. P0713 is a transmission fluid temp circuit high input, which means the fluid in the transmision was hot beyond limits and the other code P0731 was the first gear ratio incorrect. This could be as simple as a fluid and filter change or could be the indicator of more issues. Good luck and let me know if you need anything else.

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1 Answer

I am getting the following trouble codes from my 2000 Dodge Durango SLT: P1732 P1734 P0731 P0734 What do these point to?


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  • P0731 Gear I Incorrect ratio
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    What do the following codes mean: P0734,P0732,P0715, and P0731. this is the order they came up in the scanner..all I can find is that they are generic codes. Should I be worried I was able to clear my...


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    I have the same problem code P0731 is the only code


    P0731 code in my book states
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    Jul 20, 2009 | 2005 Kia Rio

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