AutoCodes – RAM – U110B RAM

U110B RAM 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 RAM 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 1,177

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 RAM 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 RAM - Lost Engine Coolant Message - AutoCodes.com — U110B RAM Code - Lost Engine Coolant Message

What does this mean?

What are the Possible Causes of the DTC U110B RAM?

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 RAM?

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 RAM 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 U110B RAM Code

1. What are the common symptoms of OBDII code U110B RAM Lost Engine Coolant Message?

The common symptoms include the check engine light coming on, a message indicating lost engine coolant appearing on the dashboard, and potential issues with engine overheating.

2. What could cause the OBDII code U110B RAM Lost Engine Coolant Message?

The code can be triggered by a malfunction in the coolant temperature sensor, a coolant leak, a faulty thermostat, or a problem with the engine's cooling system.

3. How can I diagnose the issue related to the U110B code?

To diagnose the problem, it is recommended to perform a visual inspection of the cooling system for leaks, check the coolant level, test the coolant temperature sensor, and inspect the thermostat for proper operation.

4. What are the potential repair options for resolving the U110B RAM code?

Possible repair options include fixing any coolant leaks, replacing the coolant temperature sensor or thermostat if faulty, flushing and refilling the cooling system, and ensuring proper functioning of the cooling fan.

5. Can driving with the U110B code triggered cause further damage to the vehicle?

Continuing to drive with the U110B code triggered can potentially lead to engine overheating, which may cause serious damage to the engine components. It is advisable to address the issue promptly to prevent further damage.

6. How much does it typically cost to repair the U110B RAM Lost Engine Coolant Message issue?

The cost of repairing the issue related to this code can vary depending on the specific cause of the problem, but it may range from $100 to $500 or more, including parts and labor.

7. Is it safe to continue driving my vehicle with the U110B code illuminated?

While it may be possible to drive the vehicle for a short distance with the code triggered, it is not recommended as it can lead to engine overheating and potential damage. It is best to address the issue as soon as possible.

8. Can I reset the U110B code myself, or do I need a professional mechanic?

You can attempt to clear the code using an OBDII scanner, but it is important to address the underlying issue causing the code to prevent it from reoccurring. If you are unsure about the repair process, consulting a professional mechanic is advisable.

9. Will fixing the U110B code improve my vehicle's performance or fuel efficiency?

Resolving the issue related to the U110B code can help restore proper engine performance and may improve fuel efficiency by ensuring the engine operates at the correct temperature and optimal conditions.

10. How often does the U110B RAM Lost Engine Coolant Message code occur in vehicles?

The U110B code related to the Lost Engine Coolant Message is relatively common in vehicles, especially in older cars or those with high mileage, where issues with the cooling system may arise. Regular maintenance and inspection can help prevent this code from appearing.