Engine-CodesDodge – U1426 Dodge

U1426 Dodge Code - Implausible TCC Slip Request Signal Received

Quick Answer

The U1426 diagnostic trouble code (DTC) for Dodge vehicles refers to an "Implausible TCC Slip Request Signal Received." This code indicates that the Transmission Control Module (TCM) has detected a discrepancy between the requested torque converter clutch (TCC) slip and the actual slip value. Common causes include Faulty TCC solenoid, Wiring issues or poor electrical connections, Malfunctioning sensors related to the TCC system. 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
U1426 Dodge indicates Implausible TCC Slip Request Signal Received.
Common causes
Common causes include Faulty TCC solenoid, Wiring issues or poor electrical connections, Malfunctioning sensors related to the TCC system.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code U1426 Dodge Description

The U1426 diagnostic trouble code (DTC) for Dodge vehicles refers to an "Implausible TCC Slip Request Signal Received." This code indicates that the Transmission Control Module (TCM) has detected a discrepancy between the requested torque converter clutch (TCC) slip and the actual slip value. The TCC is a critical component in the automatic transmission system that helps improve fuel efficiency and reduce heat generation by locking the torque converter when driving at a constant speed.

OBDII Code U1426 Dodge - Implausible TCC Slip Request Signal Received
U1426 Dodge Code - Implausible TCC Slip Request Signal Received

Common Causes of U1426 Dodge

  1. Faulty TCC solenoid
  2. Wiring issues or poor electrical connections
  3. Malfunctioning sensors related to the TCC system
  4. Internal transmission problems
  5. Software or programming issues in the TCM

Symptoms of U1426 Dodge

  1. Erratic shifting behavior
  2. Reduced fuel efficiency
  3. Harsh engagement when accelerating or decelerating
  4. Transmission overheating
  5. Illumination of the Check Engine Light

How to Fix U1426 Dodge

  1. Perform a comprehensive diagnostic scan to retrieve the specific trouble codes and pinpoint the exact cause of the issue.
  2. Inspect the TCC solenoid, wiring, and sensors for any signs of damage or malfunction.
  3. Test the TCC system components to ensure proper functionality and resistance values.
  4. Replace any faulty components, such as the TCC solenoid or damaged wiring, and retest the system.
  5. Clear the DTCs from the TCM memory and perform a test drive to verify that the issue has been resolved.

Cost to Fix U1426 Dodge

The typical repair costs for addressing an "Implausible TCC Slip Request Signal Received" code can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the repair costs for this type of transmission-related problem can range from $200 to $800, including parts and labor. However, it's essential to note that the actual costs may differ based on the location, vehicle make and model, and the hourly labor rates charged by auto repair shops. It's recommended to consult with a certified mechanic or dealership to obtain a more accurate estimate for the repair.

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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 U1426 Dodge Code

1. What are the common symptoms of an U1426 OBDII code in a Dodge vehicle?

The common symptoms include erratic shifting, transmission slipping, and illumination of the Check Engine Light.

2. What does the U1426 OBDII code "Implausible TCC Slip Request Signal Received" mean in a Dodge?

This code indicates that the transmission control module has detected an implausible signal related to the torque converter clutch slip request.

3. What are the possible causes of the U1426 OBDII code in a Dodge?

Possible causes include faulty transmission control module, wiring issues, defective torque converter clutch solenoid, or internal transmission problems.

4. How serious is the U1426 OBDII code in a Dodge?

While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the transmission system.

5. How can I diagnose the U1426 OBDII code in my Dodge?

Diagnosis typically involves using a diagnostic scanner to retrieve the code, checking for any related codes, and performing a thorough inspection of the transmission system.

6. Can I continue driving my Dodge with the U1426 OBDII code present?

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

7. How can I repair the U1426 OBDII code in my Dodge?

Repair options may include repairing or replacing damaged wiring, replacing the torque converter clutch solenoid, or reprogramming the transmission control module.

8. Will resetting the OBDII code make it go away permanently?

Resetting the code may temporarily clear the Check Engine Light, but if the underlying issue is not addressed, the code is likely to return.

9. Can a DIY enthusiast fix the U1426 OBDII code issue in a Dodge?

Depending on the level of expertise, some DIY enthusiasts may be able to address the issue themselves, especially if it involves simple repairs like checking and replacing fuses or relays.

10. How much does it cost to repair the U1426 OBDII code in a Dodge at a professional mechanic?

The cost of repair can vary depending on the exact cause of the code and the labor rates in your area. It is advisable to get a diagnostic assessment from a professional mechanic for an accurate estimate.

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