AutoCodes – Generic – U110C

U110C Code - Lost Fuel Level Message

Quick Answer

The Fuel Level Sensor signal is a direct input to the Body Control Module (BCM). Common causes include Low battery charge, Faulty Body Control Module (BCM), Body Control Module harness is open or shorted. 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: U110C indicates Lost Fuel Level Message.
Common causes: Common causes include Low battery charge, Faulty Body Control Module (BCM), Body Control Module harness is open or shorted.
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 6,045

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 Jul 04, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U110C Description

The Fuel Level Sensor signal is a direct input to the Body Control Module (BCM). The BCM transmits the fuel level message to the Powertrain Control Module (PCM) over the Controlled Area Network (CAN) C bus. The Diagnostic Trouble Code (DTC) sets when the PCM either doesn't receive a bus message or receives an implausible bus message from the BCM.

OBDII Code U110C - Lost Fuel Level Message - AutoCodes.com — U110C Code - Lost Fuel Level Message

What does this mean?

What are the Possible Causes of the DTC U110C?

Low battery charge
Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC U110C?

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 does this mean?

Code Tech Notes

The Powertrain Control Module (PCM) continuously monitors the fuel level from the Fuel Level Sensor through the Body Control Module (BCM). The U110C code indicates that the PCM lost fuel level communication from the BCM. Start by checking the PCM and BCM harness connectors, retighten the connectors, and clear the code. Also, check the battery charge, as a low battery charge has been reported to trigger this code. If the problem persists, replacing the BCM will be necessary to repair the issue.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U110C 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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Information for Specific Makes

U110C Chrysler — Lost Fuel Level Message
U110C Dodge — Lost Fuel Level Message
U110C Jeep — Lost Fuel Level Message

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 U110C Code

1. What are common symptoms of OBDII code U110C (Lost Fuel Level Message)?

- Common symptoms include inaccurate fuel level readings on the dashboard, fluctuating fuel gauge, and potential illumination of the check engine light.

2. What causes the OBDII code U110C to trigger?

- The U110C code is typically triggered by communication issues between the fuel level sensor and the vehicle's electronic control module (ECM).

3. How can I diagnose the U110C code related to a lost fuel level message?

- It is important to start by checking the wiring and connectors related to the fuel level sensor, inspecting for any damage or loose connections that may be causing the issue.

4. Are there any quick fixes for the U110C code related to the lost fuel level message?

- In some cases, simply resetting the ECM by disconnecting the battery for a few minutes can resolve the communication error causing the U110C code.

5. Should I be concerned about driving with the U110C code present?

- While the U110C code itself may not directly affect the drivability of the vehicle, it is important to address the underlying issue to ensure accurate fuel level readings and proper functioning of the fuel system.

6. Can a DIY enthusiast repair the U110C code related to a lost fuel level message?

- Depending on the root cause of the issue, DIY enthusiasts with knowledge of automotive electrical systems may be able to address the U110C code by checking and repairing wiring connections.

7. Is it necessary to replace the fuel level sensor when dealing with the U110C code?

- In some cases, the issue causing the U110C code may be related to wiring or communication errors rather than a faulty fuel level sensor, so it's important to diagnose the problem accurately before replacing any parts.

8. Will the U110C code reset on its own after the issue is fixed?

- Once the issue causing the U110C code is resolved, the code may reset on its own after several successful drive cycles during which the ECM confirms proper communication with the fuel level sensor.

9. Can extreme weather conditions contribute to the U110C code appearing?

- Extreme temperature changes or moisture can potentially affect the electrical connections related to the fuel level sensor, leading to the U110C code triggering a lost fuel level message.

10. How can a professional mechanic help in diagnosing and repairing the U110C code?

- Experienced mechanics have the tools and expertise to perform advanced diagnostics, accurately pinpoint the cause of the U110C code, and make necessary repairs to ensure the issue is resolved effectively.