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U1117 Infiniti Code - Lost Communication With ABS

Quick Answer

The U1117 Infiniti code indicates that there is a communication problem between the vehicle's onboard computer system and the Anti-Lock Brake System (ABS) module. Common causes include Damaged or corroded wiring or connectors leading to the ABS module, Faulty ABS module, Malfunctioning onboard computer system. 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
U1117 Infiniti indicates Lost Communication With ABS.
Common causes
Common causes include Damaged or corroded wiring or connectors leading to the ABS module, Faulty ABS module, Malfunctioning onboard computer system.
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 11, 2024
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Code U1117 Infiniti Description

The U1117 Infiniti code indicates that there is a communication problem between the vehicle's onboard computer system and the Anti-Lock Brake System (ABS) module. This communication error can prevent the ABS system from functioning properly, potentially compromising the vehicle's ability to brake effectively in emergency situations. The ABS system is crucial for maintaining control and stability during braking, especially on slippery or uneven road surfaces. When communication is lost with the ABS module, it can lead to a loss of important data and control signals needed for optimal brake performance.

OBDII Code U1117 Infiniti - Lost Communication With ABS
U1117 Infiniti Code - Lost Communication With ABS

Common Causes of U1117 Infiniti

  1. Damaged or corroded wiring or connectors leading to the ABS module
  2. Faulty ABS module
  3. Malfunctioning onboard computer system
  4. Software issues or communication errors within the vehicle's network
  5. Electrical interference or grounding issues affecting communication signals

Symptoms of U1117 Infiniti

  1. Illumination of the ABS warning light on the dashboard
  2. Loss of ABS functionality, such as pulsating brakes during hard stops
  3. Traction control system failure
  4. Erratic brake behavior, such as locking up or skidding during braking
  5. Difficulty maintaining control while braking on slippery surfaces

How to Fix U1117 Infiniti

  1. Conduct a thorough diagnostic scan to retrieve the specific error codes and pinpoint the source of the communication problem.
  2. Inspect the wiring harness and connectors leading to the ABS module for any signs of damage or corrosion. Repair or replace as needed.
  3. Test the ABS module for functionality and replace if found to be faulty.
  4. Check for any software updates or glitches within the vehicle's network and perform necessary reprogramming or resets.
  5. Conduct a final test drive to ensure proper communication and functionality of the ABS system.

Cost to Fix U1117 Infiniti

The typical repair costs for addressing a U1117 Infiniti code can vary depending on the specific cause of the communication failure. In general, the repair may range from $200 to $600, including parts and labor. However, it's essential to consider that diagnostic time and labor rates at auto repair shops can fluctuate based on factors such as location, vehicle make and model, and engine type. It's advisable to contact local repair shops for a more accurate estimate based on your specific situation.

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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 U1117 Infiniti Code

1. What does the OBDII code U1117 for Infiniti mean?

The U1117 code indicates a communication problem between the vehicle's engine control module (ECM) and the anti-lock braking system (ABS) module.

2. What are the common symptoms of U1117 code in an Infiniti?

Common symptoms of the U1117 code include ABS warning light illuminated on the dashboard, loss of ABS functionality, and potential traction control issues.

3. What are the possible causes of the U1117 code in an Infiniti?

Possible causes of the U1117 code include damaged wiring or connectors between the ECM and ABS module, a faulty ABS module, or a malfunctioning ECM.

4. How do I diagnose the U1117 code in my Infiniti?

Diagnosing the U1117 code involves using an OBDII scanner to retrieve the code, inspecting the wiring and connectors between the ECM and ABS module, and performing a thorough system check.

5. Can I still drive my Infiniti with the U1117 code present?

It is not recommended to drive your Infiniti with the U1117 code present, as it may affect the vehicle's ABS functionality and compromise safety.

6. How can I fix the U1117 code in my Infiniti?

To fix the U1117 code, you may need to repair or replace damaged wiring or connectors, replace the faulty ABS module, or reprogram the ECM to establish communication with the ABS module.

7. Is the U1117 code a serious issue in an Infiniti?

Yes, the U1117 code is a serious issue as it affects the communication between critical systems like the ECM and ABS, potentially compromising the vehicle's safety features.

8. Can a DIY enthusiast repair the U1117 code in an Infiniti?

While some basic diagnostics can be done by a DIY enthusiast, resolving the U1117 code may require specialized tools and expertise, so it is recommended to consult a professional mechanic.

9. How much does it cost to fix the U1117 code in an Infiniti?

The cost to fix the U1117 code can vary depending on the underlying cause, with repairs ranging from a simple wiring fix to a more complex ABS module replacement. Costs can range from a few hundred to over a thousand dollars.

10. How can I prevent the U1117 code from appearing in my Infiniti?

Regular maintenance, including checking and maintaining the wiring connections, can help prevent the U1117 code from appearing in your Infiniti.

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