AutoCodes – Dodge – U11C9 Dodge

U11C9 Dodge Code - Lost Left Front Wheel Speed Message

Quick Answer

This diagnostic checks the availability of the left front wheel speed signal which is sent by the Electronic Stability Program (ESP) 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: U11C9 Dodge indicates Lost Left Front 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.

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Code Popularity 678

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 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U11C9 Dodge Description

This diagnostic checks the availability of the left front wheel speed signal which is sent by the Electronic Stability Program (ESP) via a Controller Area Network (CAN) message. The diagnostic checks the availability by checking the valid bit. The Diagnostic Trouble Code (DTC) sets when the read value does not match the written value in any RAM location.

OBDII Code U11C9 Dodge - Lost Left Front Wheel Speed Message - AutoCodes.com — U11C9 Dodge Code - Lost Left Front Wheel Speed Message

What does this mean?

What are the Possible Causes of the DTC U11C9 Dodge?

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

How to Fix the DTC U11C9 Dodge?

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 U11C9 Dodge 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.

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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 U11C9 Dodge Code

1. What are the common symptoms of the U11C9 Dodge OBDII code?

- Common symptoms include ABS or traction control warning lights illuminated on the dashboard, erratic speedometer readings, and potential loss of stability control.

2. What does the U11C9 code indicate in a Dodge vehicle?

- The U11C9 code specifically points to a lost left front wheel speed message, indicating a problem with the wheel speed sensor on the left front wheel.

3. What are the possible causes of the U11C9 code in a Dodge vehicle?

- Possible causes include a faulty wheel speed sensor, damaged wiring or connectors related to the left front wheel speed sensor, or issues with the ABS module.

4. How can I diagnose the U11C9 code in my Dodge vehicle?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the code, inspecting the left front wheel speed sensor and its connections, and conducting a visual inspection of the wiring harness.

5. Can I continue driving with the U11C9 code present in my Dodge?

- While the vehicle may still be operable with the code present, it is not recommended to ignore it as it can affect the proper functioning of the ABS, traction control, and stability control systems.

6. How can the U11C9 code be repaired in a Dodge vehicle?

- Repairing the U11C9 code often involves replacing the left front wheel speed sensor, repairing or replacing damaged wiring or connectors, and clearing the code with a diagnostic scanner.

7. Is it possible to reset the U11C9 code without fixing the underlying issue?

- While clearing the code temporarily may turn off the warning lights, the problem will likely resurface until the root cause is addressed, potentially affecting the vehicle's safety systems.

8. Can weather conditions or road debris trigger the U11C9 code in a Dodge vehicle?

- Yes, extreme weather conditions or debris interfering with the wheel speed sensor can potentially trigger the U11C9 code, highlighting the importance of keeping the sensors clean and protected.

9. Will the U11C9 code cause any drivability issues in a Dodge vehicle?

- The U11C9 code itself may not cause drivability issues, but it can lead to safety concerns due to the compromised ABS, traction control, and stability control functionalities.

10. How much should I expect to pay for repairs related to the U11C9 code in a Dodge vehicle?

- Repair costs can vary depending on the exact cause of the issue, but replacing a wheel speed sensor or addressing wiring issues related to the U11C9 code may range from $100 to $300 at a repair shop.