If you own a Harley-Davidson motorcycle, you might have encountered various error codes that can be confusing and frustrating. One of the most common codes that riders encounter is the Harley Code B1211. This code indicates that there is an issue with the fuel level sender, which is responsible for measuring the amount of fuel in your motorcycle’s tank.

When you see the Harley Code B1211, it means that the fuel level sender is either shorted high or open. This can cause your fuel gauge to malfunction, making it difficult for you to know how much fuel you have left. If you continue to ride your motorcycle with this error code, it can lead to more serious problems down the line.

Fortunately, there are ways to troubleshoot and fix the Harley Code B1211. You can start by checking the wiring connections and ensuring that they are properly connected. You can also test the fuel level sender and replace it if necessary. It’s important to address this error code as soon as possible to avoid any further issues with your motorcycle.

Understanding Diagnostic Trouble Codes

If you own a Harley-Davidson motorcycle, you may have come across the term “Diagnostic Trouble Code” or DTC. These codes are a way for your bike’s onboard computer to communicate with you about any issues it may be experiencing. Understanding DTCs can save you time and money, as they can help you diagnose problems before they become more serious.

DTC Basics

Diagnostic Trouble Codes are standardized codes used by vehicles to communicate with mechanics and technicians. These codes are made up of a series of letters and numbers that represent specific issues with your bike’s systems. When a problem is detected, the system will generate a code and store it in its memory. This code can then be read by a diagnostic tool, allowing you to identify the issue and take steps to fix it.

Harley-Specific Codes

Harley-Davidson motorcycles use their own set of Diagnostic Trouble Codes. These codes are specific to Harley-Davidson bikes and are used to identify issues with the bike’s various systems. One such code is B1211, which indicates an issue with the fuel level sender.

Code B1211 indicates that the fuel level sender is either shorted high or open. This means that the fuel level sensor is either sending a signal that is too high, or it is not sending any signal at all. This can cause issues with your bike’s fuel system, including inaccurate fuel level readings and problems starting the bike.

If you encounter code B1211, it is important to take steps to diagnose and fix the issue. This may involve checking the wiring and connections to the fuel level sender, or replacing the sender altogether. If you are not comfortable working on your bike’s systems, it is always best to take it to a qualified mechanic or technician.

In summary, understanding Diagnostic Trouble Codes is an important part of owning a Harley-Davidson motorcycle. These codes can help you identify issues with your bike’s systems and take steps to fix them before they become more serious. If you encounter code B1211, it is important to take action to diagnose and fix the issue to keep your bike running smoothly.

Common Harley Error Codes

If you own a Harley-Davidson motorcycle, you might encounter some error codes from time to time. These error codes are an indication that something is wrong with your bike, and it needs to be fixed. In this section, we will discuss some common Harley error codes and what they mean.

Ignition and Battery Issues

One of the most common issues that Harley-Davidson riders face is ignition and battery problems. If your bike is not starting, you might see codes like B1103 or B1153. These codes indicate that there is a problem with the ignition system or the battery.

To fix these issues, you should check your battery voltage and make sure it’s in good condition. You should also check your ignition switch and wiring to make sure everything is connected properly. If you’re still having issues, it’s best to take your bike to a Harley-Davidson dealer for further diagnosis.

Fuel System Malfunctions

Another common issue that Harley-Davidson riders face is fuel system malfunctions. If your bike is not running smoothly, you might see codes like B1200 or B1210. These codes indicate that there is a problem with the fuel system.

To fix these issues, you should check your fuel pump and fuel filter to make sure they’re working properly. You should also check your fuel injectors and fuel lines to make sure they’re not clogged or damaged. If you’re still having issues, it’s best to take your bike to a Harley-Davidson dealer for further diagnosis.

Radio and Control Errors

If you have a Harley-Davidson with a radio or other control systems, you might encounter error codes like B1212 or B1213. These codes indicate that there is a problem with the radio or control system.

To fix these issues, you should check your wiring and connections to make sure everything is connected properly. You should also check your fuses and relays to make sure they’re not blown or damaged. If you’re still having issues, it’s best to take your bike to a Harley-Davidson dealer for further diagnosis.

In addition to the codes mentioned above, there are many other error codes that you might encounter while riding your Harley-Davidson motorcycle. It’s important to understand what these codes mean and how to fix them to keep your bike running smoothly.

Electrical System Overview

When it comes to the electrical system of your Harley Davidson, there are a few key components that are important to understand. These components work together to power your motorcycle and keep it running smoothly.

Battery and Ignition

The battery and ignition system are responsible for starting your motorcycle and keeping it running. The battery provides the initial power needed to start the engine, while the ignition system provides the spark needed to ignite the fuel.

If you are experiencing issues with your battery or ignition system, it can cause a variety of problems, including trouble starting your motorcycle or even stalling while riding. To ensure that your battery and ignition system are working properly, it is important to perform regular maintenance and inspections.

Body Control Module (BCM)

The Body Control Module (BCM) is an important component of your Harley Davidson’s electrical system. It is responsible for controlling and monitoring various systems, including the fuel system and the charging system.

If you are experiencing issues with your motorcycle, it is possible that the BCM may be at fault. For example, if you are receiving the B2116 or B2117 error code, this could indicate a problem with the fuel pump output circuit or the fuel pump relay circuit, which are both controlled by the BCM.

Another error code that could be related to the BCM is B0563, which indicates a problem with the battery voltage. This could be caused by a faulty BCM or a problem with the battery itself.

In conclusion, understanding the electrical system of your Harley Davidson is important for ensuring that your motorcycle runs smoothly. By performing regular maintenance and inspections, and addressing any issues as soon as they arise, you can help prevent more serious problems from occurring.

Sensor and Output Functions

When it comes to Harley Davidson motorcycles, the onboard computer system is responsible for monitoring various sensors and output functions. One of the most common issues that riders face is the B1211 error code, which indicates a problem with the fuel sender or fuel pump output. In this section, we will take a closer look at the different sensor and output functions and how they work together to keep your motorcycle running smoothly.

Brake Lamp and Fuel Pump Outputs

The brake lamp and fuel pump outputs are two of the most important functions of your Harley’s computer system. The brake lamp output is responsible for turning on the brake lights when you apply the brakes, while the fuel pump output controls the flow of fuel to the engine. If either of these outputs is open, it can cause a range of issues, including poor performance and safety concerns.

Turn Signal and Radio Voltage

In addition to the brake lamp and fuel pump outputs, your Harley’s computer system also monitors the left and right turn signal outputs, as well as the radio voltage. The turn signal outputs are responsible for turning on the turn signals when you activate them, while the radio voltage monitors the voltage level of your motorcycle’s battery.

If any of these outputs are open or malfunctioning, it can cause a range of issues, including poor performance, safety concerns, and electrical problems. Therefore, it is essential to keep your Harley’s computer system in good working order to ensure that all of these functions are working correctly.

In conclusion, the sensor and output functions of your Harley Davidson motorcycle are critical to its overall performance and safety. By understanding how these functions work together and keeping your computer system in good working order, you can ensure that your motorcycle runs smoothly and safely for years to come.

Troubleshooting Error B1211

If you are experiencing an error code B1211 on your Harley, it means that the fuel sender is either shorted high or open. This can cause issues with your fuel gauge and prevent it from accurately displaying the fuel level in your tank. In this section, we will provide you with a step-by-step guide on how to troubleshoot this error and the tools and equipment you will need to do so.

Step-by-Step Guide

1. First, you will need to access the diagnostic mode on your Harley. To do this, turn the ignition switch to the “off” position. Then, press and hold the odometer reset button while turning the ignition switch to the “on” position. Release the odometer reset button and wait for the diagnostic mode to begin.

2. Use the odometer reset button to scroll through the diagnostic codes until you reach code B1211. Take note of any other codes that may be present, as they could be related to the issue.

3. Once you have identified the B1211 code, you will need to test the fuel sender. This can be done using a multimeter. Set the multimeter to the ohms setting and connect the probes to the fuel sender terminals. The resistance should be between 0 and 160 ohms. If the resistance is outside of this range, the fuel sender will need to be replaced.

4. If the fuel sender is functioning properly, you will need to test the wiring between the fuel sender and the BCM. Check for any breaks or shorts in the wiring and repair as necessary.

5. Once you have completed these steps, clear the diagnostic codes and restart your Harley. Test the fuel gauge to ensure that it is functioning properly.

Tools and Equipment Needed

To troubleshoot error code B1211 on your Harley, you will need the following tools and equipment:

• Multimeter
• Wire strippers
• Electrical tape
• Replacement fuel sender (if necessary)

By following this step-by-step guide and using the necessary tools and equipment, you can troubleshoot error code B1211 on your Harley and ensure that your fuel gauge is functioning properly.

Repair and Maintenance Tips

Preventative Measures

To avoid encountering the B1211 code on your Harley, it is essential to take some preventative measures. Regular maintenance of your motorcycle is crucial to keep it running smoothly. Make sure to check your fuel level sender regularly for any signs of wear or damage, and replace it if needed. Additionally, keep your battery charged and in good condition to ensure that it can supply the necessary power to your bike’s electrical systems.

Common Fixes

If you encounter the B1211 code on your Harley, there are a few common fixes you can try before taking it to a mechanic. First, check the wiring and connections of your fuel level sender to ensure that they are secure and free from any damage or corrosion. If the wiring and connections are okay, then you may need to replace the fuel level sender to fix the issue.

Another common fix is to check the battery voltage and charging system to ensure that they are working correctly. A low voltage or faulty charging system can cause the B1211 code to appear on your Harley. If you find any issues with your battery or charging system, then it’s essential to fix them as soon as possible to avoid further damage to your motorcycle.

In conclusion, regular maintenance and care of your Harley can help prevent the B1211 code from appearing. However, if you do encounter the code, checking the wiring and connections of your fuel level sender and battery voltage and charging system can help you identify and fix the issue. If you’re unsure about how to fix the issue, it’s always best to take your motorcycle to a trusted mechanic for repairs.

Harley Control Module Errors

If you’re having trouble with your Harley, there’s a good chance that it’s related to the control module. The control module is responsible for managing a variety of systems on your bike, including the turn signals, fuel pump, and more. When there’s an error with the control module, it can cause a range of issues.

Left Hand Control Module (LHCM)

The LHCM is responsible for controlling the left side of your bike, including the left turn signal. If there’s an error with the LHCM, you may experience issues with your left turn signal, such as it blinking too fast or not blinking at all. One common error with the LHCM is the B1103 code, which indicates an internal fault.

Right Hand Control Module (RHCM)

The RHCM is responsible for controlling the right side of your bike, including the right turn signal. If there’s an error with the RHCM, you may experience issues with your right turn signal, such as it blinking too fast or not blinking at all. One common error with the RHCM is the B1153 code, which indicates an internal fault.

It’s important to note that the LHCM and RHCM are separate modules, so it’s possible to have an error with one and not the other. If you’re experiencing issues with both turn signals, it’s likely that there’s an issue with the body control module (BCM).

In addition to the B1103 and B1153 codes, there are other codes that may indicate an error with the LHCM or RHCM. If you’re experiencing issues with your turn signals, it’s important to check the diagnostic trouble codes (DTCs) to determine the root cause of the issue.

Overall, if you’re experiencing issues with your turn signals or other systems on your Harley, it’s important to check the control modules for errors. By identifying and resolving any errors with the LHCM, RHCM, or BCM, you can ensure that your bike is running smoothly and safely.