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Engine-Codes – Generic – P0701

P0701 Code - Transmission Control System Performance

Quick Answer

The P0701 diagnostic trouble code (DTC) indicates an issue with the transmission control system's performance. Common causes include Faulty transmission control module: The module that controls the transmission's operation may be malfunctioning, leading to performance issues, Sensor malfunction: Sensors that monitor various aspects of the transmission's operation may fail, causing the system to operate improperly, Wiring issues: Problems with the wiring connecting the transmission control system components can disrupt communication and lead to performance problems. 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
P0701 indicates Transmission Control System Performance.
Common causes
Common causes include Faulty transmission control module: The module that controls the transmission's operation may be malfunctioning, leading to performance issues, Sensor malfunction: Sensors that monitor various aspects of the transmission's operation may fail, causing the system to operate improperly, Wiring issues: Problems with the wiring connecting the transmission control system components can disrupt communication and lead to performance problems.
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 P0701 Description

The P0701 diagnostic trouble code (DTC) indicates an issue with the transmission control system's performance. The transmission control system is responsible for managing the operation of the transmission, ensuring that gear shifts occur smoothly and at the appropriate times. When this system is not functioning correctly, it can lead to a variety of issues that can impact the vehicle's performance and drivability.

OBDII Code P0701 - Transmission Control System Performance
P0701 Code - Transmission Control System Performance

Common Causes of P0701

  1. Faulty transmission control module: The module that controls the transmission's operation may be malfunctioning, leading to performance issues.
  2. Sensor malfunction: Sensors that monitor various aspects of the transmission's operation may fail, causing the system to operate improperly.
  3. Wiring issues: Problems with the wiring connecting the transmission control system components can disrupt communication and lead to performance problems.
  4. Mechanical failure: Internal components of the transmission, such as solenoids or valves, may fail, affecting the system's performance.
  5. Software issues: Problems with the software programming of the transmission control system can lead to errors in operation and trigger the P0701 code.

Symptoms of P0701

  1. Delayed or harsh shifting: The transmission may hesitate or jerk when shifting gears, leading to a rough driving experience.
  2. Slipping gears: The transmission may slip out of gear or fail to engage properly, causing a loss of power and acceleration.
  3. Transmission fluid leaks: A malfunction in the transmission control system can lead to fluid leaks, which can result in low fluid levels and potential damage to the transmission.
  4. Illuminated warning light: The check engine light may come on to indicate a problem with the transmission control system.

How to Fix P0701

  1. Diagnose the issue: Use a scan tool to retrieve the trouble code and perform additional testing to pinpoint the exact cause of the problem.
  2. Inspect wiring and connectors: Check for any damaged or loose wiring connections that may be affecting the transmission control system.
  3. Test sensors and components: Verify the operation of sensors and other components within the transmission control system to identify any faulty parts.
  4. Replace faulty components: Replace any malfunctioning sensors, modules, or other components that are causing the P0701 code.
  5. Clear codes and test drive: After making repairs, clear the trouble codes from the system and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P0701

The cost of repairing a P0701 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for replacing sensors or modules can range from $100 to $500, while labor costs may range from $200 to $500 or more. Overall, the total cost of repairing a P0701 code could be anywhere from $300 to $1000 or more, depending on the specific circumstances.

Need more information about the P0701 code?

Need more information on how to fix the P0701 code? Get Access to Factory Service Manuals

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Code P0701 Information for Specific Makes

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 P0701 Code

1. What are the common symptoms of OBDII code P0701 (Transmission Control System Performance)?

- Common symptoms include difficulty shifting gears, delays in shifting, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P0701?

- Possible causes include faulty transmission control module (TCM), damaged wiring or connectors, low transmission fluid levels, or a malfunctioning shift solenoid.

3. How can I diagnose OBDII code P0701?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking the transmission fluid level and condition, inspecting the wiring and connectors, and testing the TCM and shift solenoids.

4. Can OBDII code P0701 be fixed by simply clearing the code?

- Clearing the code may temporarily turn off the Check Engine Light, but it will not fix the underlying issue causing the code. It is important to diagnose and repair the root cause.

5. How can I repair OBDII code P0701?

- Repair options include replacing the TCM, repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, and replacing faulty shift solenoids.

6. Is it safe to continue driving with OBDII code P0701 present?

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

7. Can a DIY enthusiast fix OBDII code P0701 at home?

- Depending on the underlying cause, some repairs related to OBDII code P0701 can be done at home by experienced DIY enthusiasts with the necessary tools and knowledge.

8. How much does it typically cost to repair OBDII code P0701 at a mechanic or dealership?

- Repair costs can vary depending on the root cause of the issue, but expect to pay anywhere from $200 to $800 or more for parts and labor at a mechanic or dealership.

9. Will OBDII code P0701 cause permanent damage to the transmission if left untreated?

- Ignoring OBDII code P0701 can potentially lead to permanent damage to the transmission over time, so it is best to address the issue promptly.

10. How long does it usually take to repair OBDII code P0701?

- The repair time for OBDII code P0701 can vary depending on the specific cause and the availability of parts, but it typically takes a few hours to a full day to complete the repair.

Discuss the causes and fixes for P0701 OBDII Code

Submit a New Comment

  • 09 Nissan Sentra 2.0 p701 code?

    Reply to Comment

  • Please double check the code number, there is no P0701 information in the factory service manual for the 2009 Nissan Sentra

    Reply to Comment

  • wtf just another regular everyday person sitting behind a computer reading information and does not have one clue about automotive repair or diagnostics . I on the other hand am ASE certified and have a 2007 Sentra reading a P0701 code from my scanner as TSC transmission speed sensor or open circuit . TCM reads codes and changes trans control into safe mode .

    Reply to Comment

  • Actually I'm a Master Nissan Mechanic and Mechanical Engineer. Just because you have the code doesn't mean there is information about that code on the US Factory Service Manual. I have search the entire manual and AllData, ProDemand and there is no information for you model year for the P0701 code. I can't give information for a code that is not in the manual.
    Do you have any reliable information about the code? If you do what is the correct repair information?

    Reply to Comment