AutoCodesHyundai – P0700 Hyundai

P0700 Hyundai Code - TCU Request For MIL On

Quick Answer

The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. Common causes include Shorted or open circuit within Transmission Control Module (TCM), Faulty 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
P0700 Hyundai indicates TCU Request For MIL On.
Common causes
Common causes include Shorted or open circuit within Transmission Control Module (TCM), Faulty 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.
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Code Popularity 71,324
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on May 07, 2024
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Code P0700 Hyundai Description

The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. When the TCM detects a malfunction with the control, a signal is send to the Engine Control Module (ECM) to trigger the Engine Light or Service Engine Soon light. The ECM stores the P0700 code and it means the TCM detected a malfunction with the transmission controls.
OBDII Code P0700 Hyundai - TCU Request For MIL On - AutoCodes.com
P0700 Hyundai Code - TCU Request For MIL On

What are the Possible Causes of the DTC P0700 Hyundai?

  • Shorted or open circuit within Transmission Control Module (TCM)
  • Faulty Transmission Control Module (TCM)

How to Fix the DTC P0700 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0700 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 P0700 Hyundai 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 P0700 Hyundai Code

1. What does the OBDII code P0700 mean on a Hyundai?

P0700 indicates that the Transmission Control Unit (TCU) has detected a fault in the transmission system and has requested the Malfunction Indicator Light (MIL) to turn on.

2. What are common symptoms of the P0700 code on a Hyundai?

Symptoms may include the check engine light being illuminated, transmission shifting issues, poor fuel economy, or the vehicle going into "limp mode."

3. What causes the P0700 code on a Hyundai?

Common causes include a faulty TCU, transmission solenoid issues, wiring problems, a failing transmission, or low transmission fluid levels.

4. Can driving with a P0700 code damage my Hyundai?

Yes, continued driving with transmission issues can cause further damage. It’s best to diagnose and repair the problem as soon as possible.

5. How is the P0700 code diagnosed on a Hyundai?

A mechanic will use a scan tool to retrieve additional transmission-related codes stored in the TCU, inspect the transmission system, and check for wiring or fluid issues.

6. What repairs can fix the P0700 code on a Hyundai?

Repairs may include replacing a faulty TCU, fixing damaged wiring, replacing defective solenoids, or servicing the transmission fluid and filter.

7. Is the P0700 code specific to Hyundai vehicles?

No, the P0700 code is a generic OBDII code and can appear on various makes and models, but the specific transmission issue depends on the vehicle.

8. How much does it cost to fix the P0700 code on a Hyundai?

The cost varies depending on the cause. Repairs like fluid replacement may cost under $150, while TCU or solenoid replacement can range from $300 to $1,000 or more.

9. Can low transmission fluid cause the P0700 code on a Hyundai?

Yes, low or contaminated transmission fluid can lead to transmission performance issues and trigger the P0700 code.

10. Should I clear the P0700 code on my Hyundai without repairs?

Clearing the code without addressing the underlying issue is not recommended, as the problem will likely persist and may lead to further damage.

Discuss the causes and fixes for P0700 Hyundai OBDII Code

  • My engine light recently came on on my Hyundai Tucson 2005. I did a test and it showed me those codes: P0700 and P0741, what should I consider doing? I was thinking of doing a transmission fluid flush is the best idea

  • The P0700 means that there is a problem with the transmission. The P0741 (https://www.autocodes.com/p07... means that the the transmission torque converter clutch solenoid is stuck. Changing the fluid could help releasing the solenoid.

  • I had the same problem just today, checked the transmission fluid level and was low, added fluid to thel level, can you tell if this could solve the problem. thanks

  • It's possible. You have to reset the light and drive your vehicle, if the light comes back than there is something else causing the problem.

  • Hello.
    It s possible that the abs cause the p0700?
    Thanks

  • No, the code is for a transmission problem.

  • i got codes p0700+p0715 on my tucson 2005 but everything is normal.what can i do to get rid of these codes

  • If there are no driveability problems, you could start by clearing the code. If the codes come back, you should focus on the P0715 code. The P0700 code just means that there is a problem problem with the transmission.

    P0715 HYUNDAI - Transmission Input Speed Sensor Error
    Read more: https://www.autocodes.com/p...

  • What kind of transmission problem dose po700 mean ??

  • What model and year is your Hyundai?

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