AutoCodes – Jeep – U1428 Jeep

U1428 Jeep Code - Received Engine Torque Request Signal Stuck

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Transmission Control Module (TCM) receives an engine torque request from the Powertrain Control Module (PCM) over the Controller Area Network (CAN) Bus that does not change for the period of 1.0 second. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection. 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: U1428 Jeep indicates Received Engine Torque Request Signal Stuck.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module circuit poor electrical connection.
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 22,616

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1428 Jeep Description

OBDII Code U1428 Jeep - Received Engine Torque Request Signal Stuck - AutoCodes.com — U1428 Jeep Code - Received Engine Torque Request Signal Stuck

What does this mean?

What are the Possible Causes of the DTC U1428 Jeep?

Faulty Transmission Control Module (TCM)
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC U1428 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 U1428 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 U1428 Jeep 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 U1428 Jeep Code

1. What are the common symptoms of OBDII code U1428 in a Jeep related to the "Received Engine Torque Request Signal Stuck"?

- Common symptoms may include reduced engine power, poor acceleration, and illuminated warning lights on the dashboard.

2. What are some potential causes of the U1428 code in a Jeep?

- Possible causes may include a malfunctioning throttle position sensor, issues with the transmission control module, or wiring problems in the communication network.

3. How can I diagnose the U1428 code in my Jeep?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking for related codes, inspecting the throttle position sensor, and testing the communication network for faults.

4. Can driving with the U1428 code present cause further damage to my Jeep?

- Continuing to drive with the U1428 code can potentially lead to decreased fuel efficiency, further damage to engine components, and safety risks due to reduced power.

5. What are some basic repair tips for addressing the U1428 code in a Jeep?

- Basic repair tips may include inspecting and cleaning the throttle body, checking and repairing damaged wiring, resetting the code and monitoring for recurrence, and ensuring all software updates are applied.

6. Is it recommended to attempt DIY repairs for the U1428 code in a Jeep?

- While some basic checks and repairs can be done by DIY enthusiasts, complex issues related to the throttle system or control modules may require professional diagnosis and repair.

7. How much can I expect to pay for repairing the U1428 code in a Jeep at a dealership or mechanic?

- Repair costs for the U1428 code can vary depending on the exact cause, but they may range from $100 to $500 for parts and labor, excluding diagnostic fees.

8. Are there any recalls or technical service bulletins (TSBs) related to the U1428 code in Jeep vehicles?

- It's recommended to check with authorized Jeep dealerships or visit the manufacturer's website to see if there are any recalls or TSBs related to the U1428 code for your specific vehicle model.

9. How long does it typically take to repair the U1428 code in a Jeep?

- The repair time for the U1428 code can vary based on the exact cause and complexity of the issue, but it may take anywhere from a few hours to a full day to diagnose and fix the problem.

10. Can the U1428 code in a Jeep be triggered by a loose gas cap or other minor issues?

- While a loose gas cap can trigger certain codes, the U1428 code specifically relates to issues with the engine torque request signal, so it is unlikely to be caused by a loose gas cap or other minor issues.