AutoCodes – Jeep – U1477 Jeep

U1477 Jeep Code - Implausible Paddle Shifter Data Received

Quick Answer

The purpose of the diagnostic is to monitor the Controller Area Network (CAN) BUS, the transmitted messages on the CAN BUS and the validity of the CAN signals. Common causes include Check for Steering Control Module (SCM) codes, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted. 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: U1477 Jeep indicates Implausible Paddle Shifter Data Received.
Common causes: Common causes include Check for Steering Control Module (SCM) codes, Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted.
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 3,464

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 May 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1477 Jeep Description

The purpose of the diagnostic is to monitor the Controller Area Network (CAN) BUS, the transmitted messages on the CAN BUS and the validity of the CAN signals. The Diagnostic Trouble Code (DTC) sets when the Transmission Control Module (TCM) detects an incorrect signal ID from the Steering Control Module (SCM).

OBDII Code U1477 Jeep - Implausible Paddle Shifter Data Received - AutoCodes.com — U1477 Jeep Code - Implausible Paddle Shifter Data Received

What does this mean?

What are the Possible Causes of the DTC U1477 Jeep?

Check for Steering Control Module (SCM) codes
Faulty Transmission Control Module (TCM)
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC U1477 Jeep?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1477 Jeep 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 U1477 Jeep code?

Need more information on how to fix the U1477 Jeep code? Get Access to Factory Service Manuals

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 U1477 Jeep Code

1. What are the common symptoms of OBDII code U1477 in a Jeep related to "Implausible Paddle Shifter Data Received"?

- Common symptoms include the paddle shifters not responding correctly, erratic shifting behavior, and the transmission not engaging properly.

2. What are some possible causes of OBDII code U1477 in a Jeep?

- Potential causes include a faulty paddle shifter module, wiring issues, software glitches, or a communication error between modules in the vehicle.

3. How can I diagnose the cause of OBDII code U1477 in my Jeep?

- To diagnose the issue, you may need to perform a thorough inspection of the paddle shifter system, check for any damaged wiring, and use a diagnostic scanner to retrieve specific error codes.

4. Can I still drive my Jeep with the U1477 OBDII code present?

- It is not recommended to continue driving your Jeep with the U1477 code as it can lead to further transmission issues and potentially unsafe driving conditions.

5. How can I reset the U1477 OBDII code in my Jeep?

- You can reset the code by using a diagnostic scanner to clear the error code from the vehicle's computer system. However, it is important to address the underlying issue causing the code to prevent it from recurring.

6. Are there any DIY repair tips for fixing the U1477 code in a Jeep?

- DIY repair tips may include checking and securing the paddle shifter wiring connections, ensuring the paddle shifters are functioning properly, and inspecting for any signs of physical damage.

7. Is it necessary to visit a mechanic for OBDII code U1477 in a Jeep?

- While some DIY troubleshooting may be possible, it is recommended to seek the expertise of a qualified mechanic to accurately diagnose and repair the underlying issue causing the U1477 code.

8. How much does it typically cost to repair OBDII code U1477 in a Jeep?

- The cost of repairing the U1477 code can vary depending on the specific cause of the issue. It is best to consult with a mechanic for an accurate diagnosis and cost estimate.

9. Can a software update fix the U1477 code in a Jeep?

- In some cases, a software update provided by the manufacturer may address the U1477 code by resolving any known issues related to paddle shifter data communication.

10. Will ignoring the U1477 code lead to more serious problems in my Jeep?

- Ignoring the U1477 code can potentially lead to more severe transmission issues and compromise the overall performance and safety of your Jeep. It is advisable to address the problem promptly.