AutoCodes – Jeep – U110B Jeep

U110B Jeep Code - Lost Engine Coolant Message

Quick Answer

The Transmission Control Module (TCM) receives information from the Engine, Anti-Lock Brake System, and the Electronic Gear Shift control modules over the CAN C bus. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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: U110B Jeep indicates Lost Engine Coolant Message.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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 5,931

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 Apr 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U110B Jeep Description

The Transmission Control Module (TCM) receives information from the Engine, Anti-Lock Brake System, and the Electronic Gear Shift control modules over the CAN C bus. The CAN C bus is a high speed communication bus that allows real time control capability between various controllers. Most messages are sent every 20 mSec, this means critical information can be shared between multiple controllers almost instantaneously. The CAN C bus is a two wire bus with a CAN (+) and a CAN (-) circuit. To reduce the potential of radio and other electrical noise interference, the CAN Bus circuit wiring is manufactured using a twisted pair configuration within the electrical wiring harness.

OBDII Code U110B Jeep - Lost Engine Coolant Message - AutoCodes.com — U110B Jeep Code - Lost Engine Coolant Message

What does this mean?

What are the Possible Causes of the DTC U110B Jeep?

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

How to Fix the DTC U110B 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 U110B 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 U110B 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 U110B Jeep Code

1. What does the OBDII code U110B Jeep indicate?

The U110B code specifically points to the "Lost Engine Coolant Message" in Jeep vehicles.

2. What are the common symptoms of the U110B code in a Jeep?

Common symptoms include a warning message about engine coolant loss or low coolant level appearing on the vehicle's display.

3. What are the potential causes of the U110B code in a Jeep?

The U110B code can be triggered by issues such as a faulty coolant level sensor, wiring problems, low coolant level, or a malfunction in the engine control module.

4. How serious is the U110B code in a Jeep?

While the U110B code itself may not directly affect the drivability of the vehicle, ignoring coolant-related issues can lead to overheating and potential engine damage if not addressed promptly.

5. How can I diagnose the U110B code in my Jeep?

Diagnosis typically involves checking the coolant level, inspecting the coolant sensor and its wiring for any damage, and using a diagnostic scanner to read the code and reset it after addressing the underlying issue.

6. Can I continue driving my Jeep with the U110B code present?

It is not recommended to ignore the U110B code, as it indicates a potential problem with the engine cooling system that should be addressed to prevent overheating and engine damage.

7. How can I repair the U110B code in my Jeep?

Repairing the U110B code may involve replacing a faulty coolant level sensor, repairing damaged wiring, topping up the coolant level, or addressing any issues with the engine control module.

8. Will resetting the U110B code make it go away permanently?

Resetting the code without addressing the underlying issue will not make it disappear permanently. It is essential to diagnose and fix the root cause of the code for it to stay cleared.

9. Can a DIY enthusiast fix the U110B code in a Jeep?

Depending on the specific issue causing the U110B code, some DIY enthusiasts with automotive repair knowledge and tools may be able to address the problem themselves.

10. How often does the U110B code occur in Jeep vehicles?

The U110B code related to the Lost Engine Coolant Message may not be very common but can still occur in Jeep vehicles experiencing coolant-related issues.