AutoCodes – Jeep – U11CD Jeep

U11CD Jeep Code - Lost Both Rear Wheel Speed Message

Quick Answer

This diagnostic checks for the availability of both Rear Wheel Speed signals which are sent by the Anti-lock Braking System (ABS) via a Controller Area Network (CAN) message. Common causes include Faulty Powertrain Control Module (PCM), Faulty Anti-Lock Brake System (ABS) Module. 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
U11CD Jeep indicates Lost Both Rear Wheel Speed Message.
Common causes
Common causes include Faulty Powertrain Control Module (PCM), Faulty Anti-Lock Brake System (ABS) Module.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 745
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 03, 2020
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Code U11CD Jeep Description

This diagnostic checks for the availability of both Rear Wheel Speed signals which are sent by the Anti-lock Braking System (ABS) via a Controller Area Network (CAN) message. The Transmission Control Module (TCM) uses this information to calculate the vehicle speed. The diagnostic determines the availability of both Rear Wheel Speed signals by checking the valid bit. When one of the signals is not available, the ABS sends a Signal Not Available (SNA) default value to the TCM. When both signals are equal to SNA default values then the Diagnostic Trouble Code (DTC) U11CD is set.
OBDII Code U11CD Jeep - Lost Both Rear Wheel Speed Message - AutoCodes.com
U11CD Jeep Code - Lost Both Rear Wheel Speed Message

What are the Possible Causes of the DTC U11CD Jeep?

  • Faulty Powertrain Control Module (PCM)
  • Faulty Anti-Lock Brake System (ABS) Module

How to Fix the DTC U11CD 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 U11CD 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 U11CD Jeep code?

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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 U11CD Jeep Code

1. What are the common symptoms of OBDII code U11CD in a Jeep indicating a lost both rear wheel speed message?

The common symptoms include ABS or traction control warning lights illuminated on the dashboard, loss of ABS functionality, and potential stability control issues.

2. What could be causing the U11CD code in a Jeep, signaling a lost both rear wheel speed message?

Possible causes include damaged wheel speed sensors, faulty wiring or connectors in the rear wheel speed sensor circuit, or issues with the ABS control module.

3. How can I diagnose the U11CD code in my Jeep related to a lost both rear wheel speed message?

Diagnosis typically involves using a professional OBDII scanner to read and interpret the code, as well as conducting a visual inspection of the rear wheel speed sensors and their circuitry for any visible damage.

4. Is it safe to drive my Jeep with the U11CD code triggered for a lost both rear wheel speed message?

It is not recommended to drive the vehicle with the ABS or traction control systems disabled, as it could compromise safety in certain driving conditions. Seek repairs as soon as possible.

5. Are there any simple repair tips for addressing the U11CD code in a Jeep due to a lost both rear wheel speed message?

Check the rear wheel speed sensors for dirt or debris that could be obstructing their function, and ensure all connectors are securely plugged in before considering more advanced repairs.

6. Can weather conditions affect the triggering of the U11CD code in a Jeep for a lost both rear wheel speed message?

Extreme weather conditions such as heavy rain, snow, or mud could potentially impact the performance of the wheel speed sensors and lead to the code being triggered.

7. How much does it typically cost to repair the U11CD code in a Jeep related to a lost both rear wheel speed message?

The cost of repair can vary depending on the exact cause of the issue, but it may range from a simple sensor replacement costing around $100 to more complex repairs involving the ABS control module, which can be more expensive.

8. Will resetting the OBDII codes clear the U11CD code in a Jeep for a lost both rear wheel speed message?

Resetting the codes may temporarily clear the warning lights, but if the underlying issue causing the U11CD code is not addressed, the code is likely to reappear upon driving the vehicle.

9. Can a DIY enthusiast without professional automotive experience attempt to fix the U11CD code in a Jeep related to a lost both rear wheel speed message?

While some basic troubleshooting steps like visual inspections and sensor cleaning can be attempted by DIY enthusiasts, more complex repairs involving the ABS system may require professional expertise.

10. How soon should I address the U11CD code in my Jeep indicating a lost both rear wheel speed message to prevent further damage?

It is advisable to address the issue promptly to ensure the proper function of the ABS and traction control systems, which are crucial for vehicle safety. Delaying repairs could potentially lead to more serious issues down the line.

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