Harley Code B2141 Gets Completely Explained

The Harley Code B2141 can be a common error code that you may encounter on your Harley-Davidson motorcycle. It’s typically associated with the installation of LED turn signal lights. But what does this code mean? How can it be fixed? And what else do you need to know? Let’s dive deep into understanding this code.

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What Does Harley Code B2141 Mean?

The Harley Code B2141 typically appears when you install LED turn signals on your Harley-Davidson motorcycle, specifically on models that are equipped with a Body Control Module (BCM). This code commonly indicates that the motorcycle’s BCM has detected an open or short circuit in the front left turn signal output.

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?

The B2141 code is triggered when the BCM detects an anomaly in the electrical load from the turn signals—commonly after installing LED lights. LEDs consume less power than traditional bulbs, leading the BCM to suspect a fault in the circuit.

Or, in other words: The most common cause for the B2141 code is the installation of LED turn signals without a load equalizer. The load equalizer is a device that helps to mimic the electrical load of a regular incandescent bulb. Without it, the BCM might interpret the lower power draw of the LEDs as a malfunction, thus triggering the B2141 code.

A related code:
– B1006 Harley Code: Causes and Solutions

How To Troubleshoot Code B2141

Step 1: Verify the Code

Start by confirming the B2141 code using your motorcycle’s diagnostic mode. This ensures you’re addressing the correct issue.

Step 2: Check the Installation

Revisit your LED turn signal installation. Ensure all connections are secure and correctly wired. A loose or incorrect connection could trigger the B2141 code.

Step 3: Sync the BCM

Turn the Ignition On: Without starting the bike, turn the ignition to the ON position.
Activate Hazard Lights: Turn on the hazard lights (4-way flashers).
Turn Ignition Off: With the hazard lights still flashing, turn the ignition to the OFF position.
Wait: Allow the hazard lights to flash for two minutes. This step is crucial for the syncing process.
Turn Ignition On Again: Turn the ignition back to the ON position without starting the bike.
Turn Off Hazard Lights: Turn off the hazard lights.
Finalize: Turn the ignition off one last time. This completes the BCM syncing process.

Step 4: Test Your Turn Signals

After syncing the BCM, test your turn signals. The rapid flashing on the dash should be resolved, and the B2141 code cleared.

Should You Be Concerned?

While this code might sound ominous, it’s often more of an annoyance than a serious mechanical issue. The fast flashing turn signal on your motorcycle’s dash, often accompanied by a red security light, is typically the most noticeable symptom. However, it’s important to address this issue promptly to maintain the proper functioning of your turn signals and to avoid potential safety hazards.

The Harley trouble codes you should be familiar with:
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What Does The Community Say?

Many Harley-Davidson owners have shared their experiences with the B2141 code online. A common sentiment among them is the confusion and frustration caused by this code, especially given the lack of clear instructions on how to resolve it.

Some owners have found success in resolving this issue by performing a BCM turn signal sync, as described in a Harley-Davidson forum thread. They’ve also shared their tips on specific procedures to follow, which can be quite helpful for Harley owners dealing with this issue.

Jake’s Story

Jake upgraded his 2018 Softail to LED turn signals and was soon greeted by the B2141 code. Initially baffled, Jake learned that the code was related to the lower power draw of LEDs which the Body Control Module (BCM) misinterpreted as a fault. After some research and a bit of DIY, he managed to resolve the issue by syncing the BCM. Jake’s advice? “Don’t panic! The fix is simpler than you think.

Samanth’as Experience

Samantha faced the B2141 code on her 2019 Dyna Low Rider S. Despite her initial frustration, a visit to an online forum provided her with a community-tested solution that didn’t require a trip to the dealership. Samantha appreciated the shared wisdom, stating, “The Harley community is an invaluable resource. Someone’s always faced what you’re going through.

Are Any Repairs Necessary To Fix The Code?

Typically, no major repairs are needed to clear the B2141 code. The issue can often be resolved by syncing the BCM, a procedure that can be done yourself following specific steps.

How Can You Clear The Code?

Clearing the B2141 code typically involves performing a BCM sync. Here are the steps to do so:

Turn the ignition switch to the ON position, but do not start the bike.
Turn the Hazard Lights (4-Way Flashers) ON.
Turn the ignition to the OFF position, leaving the Hazard Lights flashing.
Let the Hazard Lights flash for 2 minutes.
Turn the ignition switch to the ON position again, but do not start the bike.
Turn the Hazard Lights (4-Way Flashers) OFF.
Turn the ignition switch to the OFF position.

After following these steps, the BCM should be synced properly, and the B2141 code should be cleared.

How Common Is Code B2141?

While it’s difficult to provide an exact frequency, the B2141 code appears to be quite common among Harley-Davidson owners, especially those who have installed LED turn signals on their bikes. A review of various Harley-Davidson forums and online communities shows many owners have encountered this code.

In conclusion, while the Harley Code B2141 can be a bit of a nuisance, it usually doesn’t indicate a serious mechanical issue and can be resolved relatively easily. Remember to always consult your Harley-Davidson owner’s manual or consult with a professional mechanic if you’re unsure about how to handle this or any other error code.

Stay safe, and enjoy the ride!

By the way, here are my technical resources to keep in mind when performing your own repairs and maintenance:

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

Frequently Asked Questions

What does the Harley code B2141 indicate?

Harley code B2141 is typically indicative of an issue with the rear turn signals. This code is triggered when there is a fault detected in the rear turn signal circuit, which could be due to various factors such as wiring issues, bulb failure, or problems with the turn signal module.

What are the symptoms of the Harley code B2141 error?

When code B2141 is present, riders may notice that their rear turn signals are not functioning properly. This could manifest as turn signals that do not light up, blink irregularly, or remain constantly on. In some cases, there might be no visible symptoms other than the diagnostic code appearing.

Can I still ride my Harley if I get the code B2141?

While it might be possible to ride your Harley with the B2141 code, it is not advisable. Proper functioning of turn signals is crucial for safe riding and communication with other motorists. Riding without fully functional turn signals can increase the risk of accidents.

Can the Harley code B2141 be cleared manually?

Once the underlying issue causing the B2141 code is resolved, the code can usually be cleared using an OBD-II scanner. If the problem is not fixed, the code is likely to reappear.