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P0733 Subaru Code - Gear 3 Incorrect Ratio

Quick Answer

The P0733 diagnostic trouble code (DTC) for Subaru vehicles indicates that there is an issue with the gear 3 incorrect ratio. Common causes include Low transmission fluid level or dirty transmission fluid, Faulty transmission solenoid, Malfunctioning transmission control module (TCM). 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 Subaru indicates Gear 3 Incorrect Ratio.
Common causes
Common causes include Low transmission fluid level or dirty transmission fluid, Faulty transmission solenoid, Malfunctioning transmission control module (TCM).
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0733 Subaru Description

The P0733 diagnostic trouble code (DTC) for Subaru vehicles indicates that there is an issue with the gear 3 incorrect ratio. This means that the transmission is not shifting into the correct gear ratio when the vehicle is in third gear. This can lead to a variety of issues with the vehicle's performance, including poor acceleration, decreased fuel efficiency, and potential damage to the transmission if left unaddressed.

OBDII Code P0733 Subaru - Gear 3 Incorrect Ratio
P0733 Subaru Code - Gear 3 Incorrect Ratio

Common Causes of P0733 Subaru

  1. Low transmission fluid level or dirty transmission fluid
  2. Faulty transmission solenoid
  3. Malfunctioning transmission control module (TCM)
  4. Worn or damaged transmission components
  5. Electrical issues within the transmission system

Symptoms of P0733 Subaru

  1. Slipping or delayed shifting in third gear
  2. Harsh or abrupt shifting
  3. Decreased fuel efficiency
  4. Illumination of the Check Engine Light
  5. Engine revving without a corresponding increase in vehicle speed

How to Fix P0733 Subaru

  1. Check and top off transmission fluid levels, ensuring it is at the correct level and in good condition.
  2. Perform a thorough inspection of the transmission system, including checking for any leaks or damage.
  3. Test the transmission solenoids and TCM for proper operation, replacing any faulty components as needed.
  4. Reset the transmission control module and perform a relearn procedure to recalibrate the transmission.
  5. If necessary, rebuild or replace damaged transmission components to restore proper gear ratios.

Cost to Fix P0733 Subaru

The cost of repairing a P0733 code on a Subaru can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for this type of repair can range from $200 to $1000 or more. Additional costs may be incurred if there are other related issues that need to be addressed. It is recommended to consult with a qualified mechanic or transmission specialist to get an accurate estimate for your specific vehicle. Keep in mind that labor rates and diagnostic fees can vary based on location and shop rates.

What does this mean?

Tech Notes for P0733 Subaru

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

When is the Code Detected?

P0733 is detected when A/T cannot be shifted to the 3rd gear position even if electrical circuit is good.

Need more information about the P0733 Subaru 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 Subaru Code

1. What are common symptoms of OBDII code P0733 in a Subaru related to Gear 3 Incorrect Ratio?

- Common symptoms include harsh shifting, slipping transmission, delayed engagement, and illuminated Check Engine Light.

2. What are the possible causes of OBDII code P0733 in a Subaru?

- Potential causes may include low transmission fluid levels, a faulty transmission solenoid, damaged gear components, or a malfunctioning transmission control module.

3. How can I diagnose the OBDII code P0733 in my Subaru?

- Diagnosis typically involves using a scan tool to retrieve the code, checking transmission fluid levels and condition, and performing a thorough inspection of the transmission system.

4. Is it safe to continue driving with OBDII code P0733 in a Subaru?

- It is not recommended to continue driving with this code as it can lead to further damage to the transmission and potentially unsafe driving conditions.

5. What are some repair tips for resolving OBDII code P0733 in a Subaru?

- Repair tips may include checking and topping up transmission fluid, inspecting and replacing damaged gear components, testing and replacing faulty solenoids, or reprogramming the transmission control module.

6. Can a DIY enthusiast fix OBDII code P0733 in a Subaru?

- While some basic diagnostics and fluid checks can be done by DIY enthusiasts, resolving the root cause of this code often requires professional expertise and specialized tools.

7. How much does it typically cost to repair OBDII code P0733 in a Subaru?

- Repair costs can vary widely depending on the exact cause of the issue, but they can range from a few hundred dollars for minor fixes to over a thousand dollars for more complex repairs.

8. Will resetting the Check Engine Light clear OBDII code P0733 in a Subaru?

- Resetting the Check Engine Light may temporarily turn it off, but the underlying issue causing the code will likely trigger the light to come back on until the problem is fixed.

9. Can extreme weather conditions affect the occurrence of OBDII code P0733 in a Subaru?

- Extreme temperatures can sometimes exacerbate transmission issues, potentially leading to the triggering of code P0733 in a Subaru.

10. How often should I have my Subaru's transmission system inspected to prevent OBDII code P0733 from occurring?

- It's recommended to have your Subaru's transmission system inspected regularly as part of routine maintenance to catch any potential issues early and prevent the occurrence of code P0733.

Discuss the causes and fixes for P0733 Subaru OBDII Code

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  • Drops out of gear between second and third. Feels like flat tire on excelleration. Need to stop car or slow down to near stop before transmission catches again.
    Check engine light comes on cruise light flashes and "AT OIL TEMP" Flashes. Started yesterday?

    Reply to Comment