AutoCodes – Hyundai – P0733 Hyundai

P0733 Hyundai Code - Third Gear Incorrect Ratio

Quick Answer

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 (3rd) supposed by TCM, the slip ratio will be more than normal. Common causes include Low transmission fluid level, Dirty transmission fluid, Shift solenoids. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0733 Hyundai indicates Third Gear Incorrect Ratio.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Shift solenoids.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 36,139

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0733 Hyundai 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 (3rd) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

OBDII Code P0733 Hyundai - Third Gear Incorrect Ratio - AutoCodes.com — P0733 Hyundai Code - Third Gear Incorrect Ratio

What does this mean?

What are the Possible Causes of the DTC P0733 Hyundai?

Low transmission fluid level
Dirty transmission fluid
Shift solenoids
Transmission mechanical problems
Transmission hydraulic control circuit

How to Fix the DTC P0733 Hyundai?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0733 Hyundai code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0733 Hyundai code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0733 Hyundai Code

1. What are the common symptoms of OBDII code P0733 in a Hyundai related to third gear incorrect ratio?

The common symptoms include harsh shifting when the vehicle tries to shift into third gear, slipping while driving in third gear, and the transmission may stay stuck in third gear.

2. What are the possible causes of OBDII code P0733 indicating third gear incorrect ratio in a Hyundai?

The code P0733 can be caused by issues such as low transmission fluid levels, a faulty shift solenoid, a malfunctioning transmission control module, or internal transmission problems like worn-out clutches or gears.

3. How can I diagnose the OBDII code P0733 on my Hyundai if I suspect a third gear incorrect ratio issue?

Diagnosing the code P0733 may involve checking the transmission fluid level and condition, inspecting for any external leaks, scanning the transmission control module for error codes, and performing a thorough inspection of the transmission components.

4. Is it safe to continue driving my Hyundai with OBDII code P0733 indicating a third gear incorrect ratio?

It is not recommended to continue driving the vehicle with this issue as it can lead to further damage to the transmission. It's best to have the problem diagnosed and repaired promptly to prevent more extensive and costly repairs.

5. Can I reset the OBDII code P0733 in my Hyundai to see if it comes back or if it was a temporary issue?

While you can clear the code temporarily, it is not a recommended solution as the underlying problem causing the code will still persist. It's crucial to address the root cause of the issue to prevent it from recurring.

6. How much does it typically cost to repair OBDII code P0733 related to third gear incorrect ratio in a Hyundai?

The cost of repairing the code P0733 can vary depending on the specific cause of the issue. It can range from a simple fix like replacing a solenoid to more complex repairs involving the transmission components, costing anywhere from a few hundred to a few thousand dollars.

7. Are there any DIY repair tips for fixing OBDII code P0733 in a Hyundai with a third gear incorrect ratio problem?

DIY repairs for this code can be challenging due to the complexity of transmission systems. It's best to consult a professional mechanic for an accurate diagnosis and proper repair to ensure the issue is resolved correctly.

8. Can a software update or reprogramming fix OBDII code P0733 in a Hyundai indicating third gear incorrect ratio?

In some cases, updating the transmission control module software can resolve issues related to incorrect gear ratios. It's worth consulting with a dealership or a qualified technician to determine if a software update could potentially fix the problem.

9. How long does it typically take to repair OBDII code P0733 related to a third gear incorrect ratio in a Hyundai?

The repair time for this code can vary depending on the exact cause of the issue and the extent of the repairs needed. Simple fixes like replacing a solenoid may take a few hours, while more complex repairs could require several days.

10. Will driving my Hyundai with OBDII code P0733 affect fuel efficiency or engine performance?

Driving with the code P0733 may cause decreased fuel efficiency and poor engine performance due to the transmission not shifting correctly. It's important to address the issue promptly to avoid further damage and maintain optimal vehicle operation.