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Harley Code B1360: What It Means and How to Fix It

by

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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If you’re a Harley-Davidson rider, you may have come across a fault code B1360 at some point. This code refers to a front left headset that is shorted low. Essentially, the Harley’s audio system is experiencing a problem with the left front headset speaker. This can be a frustrating issue for riders, as it can impact the quality of their music or communication systems while riding.

To diagnose the problem, you can read the DTC codes on a Harley-Davidson without a diagnostic tool by using the trip reset button. The main steps in this process are as follows: turn the ignition switch to the off position and then back on, press and hold the trip reset button, and then turn the ignition switch to the off position again. From there, you can release the trip reset button and the DTC codes will begin to flash on the speedometer. If you see B1360, it’s time to troubleshoot the left front headset speaker.

There are a few potential causes of a shorted low front left headset, including a damaged speaker, a wiring issue, or a problem with the audio control module. Troubleshooting the issue will require some electrical knowledge and potentially some tools, but with some patience and persistence, you can get your Harley’s audio system back up and running smoothly.

Understanding Harley Diagnostic Trouble Codes

Harley-Davidson motorcycles are equipped with a diagnostic system that can detect faults in the bike’s various systems. These faults are indicated by Diagnostic Trouble Codes (DTCs) that are displayed on the bike’s instrument cluster. Understanding these codes can help you diagnose and fix issues with your Harley.

The Role of the BCM

The Body Control Module (BCM) is a critical component of Harley-Davidson’s diagnostic system. It is responsible for monitoring and controlling various systems, including the bike’s lighting, audio, and security systems. The BCM communicates with other modules in the bike’s diagnostic system, such as the Engine Control Module (ECM) and the Anti-Lock Braking System (ABS) module, to detect faults and generate DTCs.

Common DTCs and Their Meanings

One common DTC that you may encounter is B1360. This code indicates that the front left headset has been shorted low. This fault can cause issues with the bike’s audio system, and it should be addressed as soon as possible.

Other common DTCs that you may encounter include:

  • B1103: This code indicates a fault in the bike’s fuel gauge circuit.
  • B1153: This code indicates a fault in the bike’s right turn signal circuit.
  • B1200: This code indicates a fault in the bike’s speedometer circuit.

If you encounter any of these codes, it is important to diagnose and fix the issue to ensure that your Harley-Davidson motorcycle is functioning properly.

In conclusion, understanding Harley Diagnostic Trouble Codes can help you diagnose and fix issues with your bike. The BCM plays a critical role in the diagnostic system, and common DTCs such as B1360, B1103, B1153, and B1200 can indicate faults in various systems. By addressing these faults promptly, you can keep your Harley running smoothly and enjoy the ride.

Troubleshooting the B1360 Code

If you are experiencing the B1360 code on your Harley Davidson, it means that there is an issue with the front left headset circuit. To troubleshoot this code, you will need to follow a few steps and have some tools and equipment on hand.

Initial Steps

Before you begin troubleshooting the B1360 code, there are a few initial steps you should take. First, check the radio and ignition switch to ensure that they are working properly. If they are not functioning correctly, this could be the root cause of the code.

Next, inspect the front left headset circuit for any signs of damage or wear. Check the wiring and connections to ensure that they are secure and free of corrosion. If you notice any issues, you may need to replace the damaged components.

Tools and Equipment Needed

To properly troubleshoot the B1360 code, you will need a few tools and pieces of equipment. These include:

  • A multimeter to test the circuit’s resistance and voltage
  • A wiring diagram to help you locate and identify the appropriate wires
  • A set of pliers and screwdrivers to remove and replace components
  • A soldering iron and solder to repair any damaged wiring or connections

With these tools and equipment on hand, you can begin the process of troubleshooting the B1360 code on your Harley Davidson.

Remember to always take proper safety precautions when working with electrical components. Disconnect the battery before beginning any work and wear appropriate safety gear, such as gloves and eye protection.

By following these steps and using the necessary tools and equipment, you can successfully troubleshoot the B1360 code on your Harley Davidson and get your bike back on the road.

Electrical Components and Symptoms

If you’re experiencing trouble with your Harley and have received the B1360 code, it’s essential to understand the electrical components and symptoms associated with it. This code can be caused by various electrical issues, including ignition switch problems, battery and alternator issues, and more.

Ignition Switch Issues

One of the most common causes of the B1360 code is ignition switch issues. The Ignition Switch RUN/ACC circuit provides voltage through the circuits to the Smart Junction Box (SJB) when the key is in the RUN/ACC position. If the Ignition Switch signal is not within factory specifications, the OBDII sets the B1360 code.

To diagnose this issue, you may need to use a multimeter to check the voltage at the switch. If the voltage is not within the factory specifications, you may need to replace the ignition switch to fix the issue.

Battery and Alternator Checks

Another potential cause of the B1360 code is battery and alternator issues. To check the battery, you can use a voltmeter to measure the voltage. The battery should read above 12.2 volts. If the battery voltage is low, try slow charging the battery for 12 hours and re-test.

If the battery voltage is within the correct range, you may need to check the alternator. To do this, start the engine and measure the voltage at the battery terminals. The charging system should now be working, and battery voltage should increase to above 14 volts. If the alternator is not working correctly, you may need to replace it to fix the issue.

It’s essential to diagnose and fix the issue causing the B1360 code as soon as possible to prevent further damage to your bike. By understanding the electrical components and symptoms associated with this code, you’ll be better equipped to diagnose and fix the issue.

Radio and Control Modules

If you are experiencing issues with your Harley Davidson radio or control modules, you may encounter error codes such as B1360. This code refers to a fault in the LHCM (Left Hand Control Module) or RHCM (Right Hand Control Module).

Radio Error Codes

In addition to LHCM and RHCM faults, you may also encounter radio error codes such as B1300 (Radio Voltage High) or B1301 (Radio Voltage Low). These codes indicate an issue with the voltage levels of your radio and may be caused by a faulty battery or blown fuses. Checking the battery voltage and ensuring that fuses are not blown can help resolve these issues. Additionally, checking the connections to the radio can help ensure that they are clean and tight.

LHCM and RHCM Faults

If you encounter B1360, it is likely that there is an issue with the LHCM or RHCM. LHCM faults can include B1103 (LHCM Internal Error) or B1121 (Left Turn Output Open), while RHCM faults can include B1134 (Right Turn Output Short to Ground) or B1142 (Accessory Line Overvoltage).

To resolve LHCM and RHCM faults, it is recommended that you check the connections to the control modules and ensure that they are clean and tight. Additionally, checking the wiring and replacing any damaged components can help resolve these issues.

Overall, if you encounter radio or control module error codes such as B1360, it is important to address these issues promptly to ensure the proper functioning of your Harley Davidson motorcycle.

Button and Switch Malfunctions

If your Harley-Davidson motorcycle is showing a B1360 error code, it means that the front left headset is shorted low. This can be caused by a malfunction in the buttons or switches on the faceplate or rear hand controls. Here are some common issues and solutions:

Faceplate and Rear Control Issues

The faceplate preset button 1 or the LHCM down button getting stuck can cause the B1360 error code. This can be resolved by cleaning the buttons or switches with a soft cloth and some rubbing alcohol. If the issue persists, you may need to replace the buttons or switches.

Stuck Buttons and Error Signals

If you notice that the buttons or switches on the faceplate or rear hand controls are sticking or not functioning properly, it can cause error signals like the B1360 code. In this case, you should inspect the buttons and switches for any visible damage or wear and tear. If you find any damage, you may need to replace the buttons or switches.

It is important to address any button or switch malfunctions as soon as possible, as they can cause error codes like the B1360 and affect the performance of your motorcycle. Regular maintenance and cleaning of the buttons and switches can help prevent these issues from occurring.

Fuel System and Error Codes

If you own a Harley-Davidson motorcycle, you might encounter error codes from time to time. One of the most common error codes is B1360, which relates to the fuel system. In this section, we will discuss the fuel system and the error codes that you might encounter.

Fuel Level Sender Errors

The fuel level sender is responsible for sending the fuel level information to the motorcycle’s computer. If there is a problem with the fuel level sender, you might encounter an error code like B1210, which indicates that the fuel level sender is shorted low or open. This error code can be caused by a faulty fuel level sender or a wiring issue.

To fix this error code, you need to check the wiring and connections between the fuel level sender and the motorcycle’s computer. If the wiring and connections are fine, you might need to replace the fuel level sender.

Fuel Signal Discrepancies

Another common fuel system error code is related to fuel signal discrepancies. If the fuel signal is too low or too high, you might encounter an error code like B1360. This error code can be caused by a variety of issues, including a faulty fuel pump, a clogged fuel filter, or a wiring issue.

To fix this error code, you need to check the fuel pump and fuel filter to make sure they are working properly. You should also check the wiring and connections between the fuel pump and the motorcycle’s computer. If everything checks out, you might need to replace the fuel pump or fuel filter.

In conclusion, error codes related to the fuel system can be frustrating, but they are usually easy to fix. By checking the fuel level sender and fuel pump, you can quickly diagnose and fix most fuel system error codes.

Advanced Diagnostics and Solutions

Using the ECU for Troubleshooting

The Electronic Control Unit (ECU) is an essential component in your Harley’s self-diagnostic system, and it can be used to troubleshoot various issues. If you are experiencing code B1360, the ECU can help you identify the cause of the problem. You can use the ECU to check if there are any issues with the Ignition Switch RUN/ACC circuit, which is responsible for providing voltage to the Smart Junction Box (SJB) when the key is in the RUN/ACC position.

To use the ECU for troubleshooting, you will need to connect a diagnostic tool to your Harley’s OBDII port. The diagnostic tool will read the DTCs stored in the ECU and display them on its screen. If code B1360 is present, you can use the diagnostic tool to access the ECU’s live data and monitor the Ignition Switch signal. If the signal is not within factory specifications, you can use the diagnostic tool to clear the code and see if it reappears.

Dealing with Internal Errors

If you have ruled out external factors as the cause of code B1360, you may be dealing with an internal error in one of your Harley’s modules. There are several modules that can cause this code, including the Integrated Speed Sensor (ISS), the Left Hand Control Module (LHCM), the Right Hand Control Module (RHCM), and the Instrument Module (IM).

If you suspect that an internal error is causing code B1360, you will need to perform a thorough inspection of your Harley’s modules. Check for signs of damage or wear, and make sure that all connections are clean and secure. If you find any issues, you may need to replace the module or repair the damaged components.

In some cases, internal errors may be caused by software or firmware issues. If this is the case, you may need to update the module’s software or firmware to resolve the issue. Check with your Harley dealer or a qualified technician to determine if a software or firmware update is available for your module.

Remember, when dealing with internal errors, it is always best to consult a qualified technician. They have the knowledge and expertise to diagnose and repair complex issues, ensuring that your Harley is running smoothly and safely.

Preventive Measures and Maintenance Tips

To ensure that your Harley Davidson motorcycle runs smoothly and efficiently, it is important to take preventive measures and perform regular maintenance. This can help you avoid issues such as the B1360 Diagnostic Trouble Code (DTC) and other problems related to the BAS, BCM, ignition switch, and other components.

Here are some tips for preventive measures and regular maintenance:

  • Check the battery voltage regularly: Low battery voltage can cause BCM problems and trigger the B1360 DTC. Check the battery voltage and make sure it is at least 12.5 volts.

  • Inspect the fuses: Check the fuses for the BCM and ignition switch and make sure they are not blown. Replace any blown fuses with the correct rating.

  • Clean the connections: Check the connections to the BCM and ignition switch and make sure they are clean and tight. Use contact cleaner to remove any dirt, grime, or corrosion.

  • Lubricate the ignition switch: Regularly lubricate the ignition switch to prevent it from becoming jammed with dirt or grime. Use a silicone-based lubricant and apply it sparingly.

  • Perform regular maintenance: Regularly inspect and maintain your Harley Davidson motorcycle to prevent issues such as the B1360 DTC. This includes checking the throttle position sensor (TPS), fuel injection system, and other components.

By following these tips for preventive measures and regular maintenance, you can help prevent issues such as the B1360 DTC and keep your Harley Davidson motorcycle running smoothly and efficiently for years to come.

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