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Engine-Codes – Generic – U0110

U0110 Code - Lost Communication With Drive Motor Control Module 'A'

Quick Answer

The U0110 code indicates that the vehicle's ECM (Engine Control Module) has lost communication with the Drive Motor Control Module 'A'. Common causes include Faulty Drive Motor Control Module 'A', Loose or corroded electrical connections, Wiring harness issues. 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
U0110 indicates Lost Communication With Drive Motor Control Module 'A' .
Common causes
Common causes include Faulty Drive Motor Control Module 'A', Loose or corroded electrical connections, Wiring harness issues.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code U0110 Description

The U0110 code indicates that the vehicle's ECM (Engine Control Module) has lost communication with the Drive Motor Control Module 'A'. This module is responsible for controlling the drive motor in hybrid or electric vehicles. When communication is lost between the ECM and the Drive Motor Control Module 'A', it can lead to a variety of performance issues and potentially cause the vehicle to enter a fail-safe or limp mode.

OBDII Code U0110 - Lost Communication With Drive Motor Control Module 'A'
U0110 Code - Lost Communication With Drive Motor Control Module 'A'

Common Causes of U0110

  1. Faulty Drive Motor Control Module 'A'
  2. Loose or corroded electrical connections
  3. Wiring harness issues
  4. ECM software malfunction
  5. Water intrusion or damage to the control module

Symptoms of U0110

  1. Check Engine Light illuminated on the dashboard
  2. Loss of power or reduced acceleration
  3. Vehicle going into limp mode
  4. Hesitation or stumbling during acceleration
  5. Vehicle may not start or start intermittently

How to Fix U0110

  1. Diagnose the issue by connecting a diagnostic scanner to retrieve the trouble code and perform a comprehensive inspection of the drive motor control system.
  2. Check and tighten all electrical connections, ensuring there is no corrosion or damage present.
  3. Inspect the wiring harness for any signs of wear, chafing, or damage. Repair or replace any compromised wiring.
  4. Test the Drive Motor Control Module 'A' for functionality and replace if deemed faulty.
  5. Clear the trouble code from the ECM memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix U0110

The typical repair costs for resolving the U0110 code can vary depending on the specific vehicle make and model, the extent of the issue, and the labor rates in your area. On average, repairing a communication issue with the Drive Motor Control Module 'A' can range from $200 to $600, including parts and labor. It's important to note that diagnostic time and labor rates can fluctuate, so it's advisable to consult with a trusted auto repair shop for a more accurate estimate. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops often offer more competitive prices.

Need more information about the U0110 code?

Need more information on how to fix the U0110 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U0110 code diagnosed by a professional: Find a repair shop in your area

Code U0110 Information for Specific Makes

  • U0110 Honda — F-CAN Malfunction Battery Condition Monitor Module-Motor Control Module
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 U0110 Code

No Frequently Asked Questions about U0110 Code found.

Discuss the causes and fixes for U0110 OBDII Code

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  • I can put it in gear but won't move

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  • What model and year is your vehicle?

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  • 06 dodge stratus

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  • Please double check the code, there is no information for the U0110 code on the factory service manual for your 2006 Dodge Stratus.Perhaps you have the U0101?

    U0101 DODGE - Transmission Bus Message
    Read more: https://www.autocodes.com/u...

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  • I Have the U0110 and U1205 codes on my Honda Civic. It sounds like a bad blower motor, I would hate to take it to Honda or a repair shop and pay a fortune, can't I just change out the fan motor and #61 fuse?

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  • What year is your Civic?

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  • 2008

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  • 2008

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  • Hello dear I have Toyota Alphard hybrid 2015. After repair transmission it can’t start and I codes “ u0110 Lost communication with drive motor control module A “

    Reply to Comment

    • The U0110 - Lost Communication With Drive Motor Control Module 'A' code indicates that the vehicle's Engine Control Module (ECM) or Hybrid Vehicle Control Module (HVCM) is unable to communicate with the Drive Motor Control Module 'A', which is critical in a hybrid system for controlling the electric drive motor.

      Since you mentioned that the transmission was recently repaired and the vehicle is not starting, it's likely that something related to the communication or wiring between the control modules was affected during the repair.

      Possible Causes:

      1. Disconnected or Damaged Wiring/Connectors:

        • The wiring harness or connectors to the drive motor control module may have been damaged or left disconnected during the transmission repair.

      2. Faulty Drive Motor Control Module (A):

        • The drive motor control module itself may have failed or is not receiving power.

      3. Blown Fuse or Relay:

        • A fuse or relay that supplies power to the drive motor control module may be blown or faulty.

      4. Incorrect Installation or Grounding Issue:

        • Improper installation of transmission-related components, including grounding points, could cause loss of communication.

      Troubleshooting Steps:

      1. Inspect Wiring and Connectors:

        • Locate the Drive Motor Control Module 'A' (typically near the transmission or motor inverter).
        • Check for loose, disconnected, or damaged wiring harnesses and connectors leading to the module.
        • Ensure that all electrical connectors are securely plugged in and free of corrosion or debris.

      2. Check Fuses and Relays:

        • Inspect all fuses and relays related to the hybrid drive system and motor control. Replace any blown fuses.
        • Ensure the module is receiving proper power and ground.

      3. Inspect Grounds and Sensor Connections:

        • Verify that all ground connections for the transmission and hybrid system are secure and properly connected.
        • A missing or loose ground connection can cause communication issues between modules.

      4. Check Transmission Sensors and Components:

        • Ensure that all sensors related to the transmission (speed sensors, position sensors, etc.) are correctly installed and connected.
        • Miscommunication from sensors can also cause the system to disable the hybrid drive.

      5. Perform a Reset:

        • Disconnect the 12V battery for 10-15 minutes to reset the system and clear temporary errors.
        • Reconnect the battery, attempt to start the vehicle, and check if the code reappears.

      6. Use a Toyota-Compatible Scanner:

        • A Toyota Techstream or hybrid-compatible OBDII scanner may provide more detailed information about the problem.
        • It can also help verify communication with other hybrid system modules and run diagnostic tests.

      When to Seek Professional Help:

      If the wiring, connectors, and fuses are intact but the code persists, you may need a hybrid technician to diagnose and potentially reprogram or replace the drive motor control module.

      Let us know if these steps help or if you have more questions!

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