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The U0141H Harley Code Gets Completely Explained

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Chase Manhattan

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Owner and Editor at The Wrench Network

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Hey y’all, it’s Chase Manhattan! I’m a life-long automotive and motorcycle enthusiast with a knack for diagnostics that I hope to share with you! Lately, I’ve been running my own motorcycle rental business, which you can read about here, and it has been a great experience that has allowed me to own numerous bikes that I probably couldn’t justify otherwise. Plus, it’s been a great way to experience new places while on vacation. If you haven’t heard of them before, I definitely recommend checking out the Riders-Share platform if you get the itch to ride while away from home, or if you want to explore a cheaper way to own and ride motorcycles!

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As an experienced motorcyclist, you may have encountered the Harley code U0141H. This code is a diagnostic trouble code (DTC) that can appear on your Harley-Davidson motorcycle’s onboard diagnostic system. The code signals an issue related to your motorcycle’s communication system, but what does it mean, how can you troubleshoot this code, and when should you be concerned?? Let’s delve deeper into understanding the U0141H Harley code. Ready? Let’s go.

What Does Harley Code U0141H Mean?

The Harley code U0141H refers to “Loss of Communication with Left Hand Control Module,” abbreviated as LHCM. This error can occur due to a variety of reasons, typically related to the motorcycle’s wiring and electrical system. The LHCM is a crucial component that controls various operations of the motorcycle, including turn signals, horn, and headlights. When there’s a communication breakdown with the LHCM, these functionalities can be negatively affected.

Here’s a break down of all of the codes (including this one) in one place:
– Unlock the Power of Harley Diagnostic Codes (PDF Included) (theseasonedwrench.com)

What Can Cause This Code?

Several factors can trigger the U0141H Harley code. Here are some common causes:

  • Faulty Wiring: Damaged or broken wires in the motorcycle’s electrical system can cause communication errors.
  • Installation Issues: The code can emerge due to improper installation or modification of handlebars or other components, leading to pinched or stretched wires.
  • Software Glitches: Sometimes, the code can be set off by a software glitch in the motorcycle’s onboard diagnostic system.
  • Component Failures: Failures within the LHCM or associated components can also trigger this code.

Should You Be Concerned?

While the U0141H Harley code may not immediately affect the motorcycle’s performance, it’s essential not to ignore it. A persistent communication error with the LHCM can lead to malfunctions in the controlled systems, potentially compromising the safety and functionality of the motorcycle. Therefore, it’s recommended to address this code promptly to prevent further complications.

And here is some other information you should have for your own maintenance and repair practices:

> Torque Specs for Harley Davidson: Ultimate Guide (PDF)
> Complete Harley Davidson Tire Size Chart (PDF)

What Does The Community Say?

The motorcycle community has shared several experiences related to the U0141H Harley code. Many riders have found that the issue often arises after modifications, such as installing new handlebars. Others have identified pinched or damaged wires as the culprit. Some riders have reported that the code was triggered intermittently, making it more challenging to diagnose.

Are Any Repairs Necessary To Fix The Code?

The necessary repair will depend on the specific cause of the U0141H Harley code. If faulty wiring is the issue, it may require repairing or replacing the damaged wires. In case of a software glitch, resetting the onboard diagnostic system could resolve the problem. If the LHCM or associated components are faulty, they might need replacement. It’s advisable to consult a professional mechanic or Harley-Davidson service center for accurate diagnosis and repair.

How Can You Clear The Code?

You can clear the U0141H Harley code using the Harley gauge cluster’s diagnostic mode. The procedure involves turning the ignition and run/stop switches in a specific sequence and using the odometer reset button to navigate the diagnostic menu. Once the code is displayed, hold the odometer reset button until ‘clear’ appears. However, clearing the code does not fix the underlying issue, so it’s essential to identify and address the cause to prevent the code from reappearing.

The Harley trouble codes you should be familiar with:
> Most Common Harley Davidson Diagnostic Codes Get Explained
> Harley Code P0562 Gets Completely Explained
> Harley Code P1356 Gets Completely Explained
> Harley Code P1510 Gets Completely Explained
> Harley Code P1632 Gets Completely Explained
> The U0184 Harley Code Gets Completely Explained
> The P2300 Harley Code Gets Completely Explained
> Harley Code B2141 Gets Completely Explained

How Common Is Code U0141H?

While the U0141H Harley code is not as common as other diagnostic codes, it’s not rare either. It’s frequently reported in the context of handlebar modifications or wiring issues. Therefore, it’s crucial for riders, especially those who frequently modify their motorcycles, to be aware of this code and its implications.

In conclusion, the U0141H Harley code signals a communication issue with the LHCM. While it may not immediately affect the motorcycle’s performance, it’s essential to address it promptly to ensure the motorcycle’s safety and functionality. By understanding what this code means and how to troubleshoot it, you can maintain your Harley-Davidson motorcycle in optimal condition.

Read more:
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> Best Harley Touring Tires: Top Picks for Long-Distance Rides
> ThunderMax vs Power Commander: Who Packs The Punch +Value?

Frequently Asked Questions

What does the U0141H code on a Harley signify?

The U0141H code in a Harley-Davidson motorcycle is typically associated with a communication issue. This code indicates a loss of communication with the body control module (BCM). This problem can stem from various sources, including wiring issues, a faulty BCM, or problems with the motorcycle’s data bus.

What are the common symptoms of the U0141H code on a Harley?

Symptoms of the U0141H code may include malfunctioning lights, issues with the instrument panel, or problems with other electronic components controlled by the BCM. The motorcycle might also display erratic behavior in systems controlled by the BCM, and the check engine light may illuminate.

Is it safe to ride a Harley with the U0141H code?

Riding with the U0141H code can be risky, especially if the BCM controls critical systems like lighting or the instrument panel. It’s better to address the issue promptly to ensure all motorcycle systems are functioning correctly for safe operation.

Can wiring issues cause the U0141H code on a Harley?

Yes, wiring issues are a common cause of the U0141H code. Damaged, frayed, or disconnected wires can interrupt communication between the BCM and other parts of the motorcycle, triggering this code.

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