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Harley Code B1362: Troubleshooting Tips for Electrical System Issues

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Chase Manhattan

Chase Manhattan Avatar
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 own a Harley-Davidson motorcycle and are experiencing issues with the rear left headset, you may have encountered the Harley code B1362. This code indicates that there is a short circuit in the rear left headset, which is causing the system to malfunction. While this issue may seem daunting, there are steps you can take to diagnose and fix the problem.

One of the first things you should do when encountering the B1362 code is to check the wiring and connections in the rear left headset. Sometimes, a loose or damaged connection can cause a short circuit, which can trigger the code. If you find any issues with the wiring or connections, you may be able to fix them yourself. However, if you are unsure or uncomfortable working on your motorcycle’s electrical system, it’s best to take it to a professional mechanic.

If you have checked the wiring and connections and still cannot find the issue, it may be time to replace the rear left headset. While this can be a costly repair, it may be necessary if the short circuit is causing other issues with your motorcycle’s electrical system. Again, it’s best to take your motorcycle to a professional mechanic to ensure that the replacement is done correctly and safely.

Understanding Harley Diagnostic Codes

If you own a Harley-Davidson motorcycle, it’s important to understand diagnostic trouble codes (DTCs) and how to interpret them. DTCs are a series of letters and numbers that provide specific information about the issue at hand. By understanding the meanings behind these codes, you can gain insights into the potential faults within your motorcycle.

The Role of Diagnostic Trouble Codes

Diagnostic trouble codes are generated by the electronic control unit (ECU) or body control module (BCM) of your motorcycle. When a problem is detected, the ECU or BCM will store a code in its memory, which can be retrieved using a scan tool. These codes can provide valuable information about the issue at hand, such as the affected system and the specific fault.

Interpreting Code B1362

One common Harley-Davidson diagnostic trouble code is B1362, which indicates a fault in the ignition switch. This code can be triggered by a faulty ignition switch, a damaged wiring harness, or a malfunctioning BCM.

To diagnose the issue, you’ll need to use a scan tool to retrieve the code and then check the affected system. If the problem is with the ignition switch, you’ll need to replace it. If the issue is with the wiring harness or BCM, you may need to repair or replace those components.

It’s important to note that while diagnostic trouble codes can provide valuable information about potential faults, they should not be relied upon as the sole source of information. A thorough diagnostic process should be used to identify and resolve any issues with your motorcycle.

In summary, understanding diagnostic trouble codes is an important part of maintaining and troubleshooting your Harley-Davidson motorcycle. By familiarizing yourself with the codes and their meanings, you can quickly identify and resolve any issues that may arise.

Electrical System Fundamentals

The electrical system of your Harley-Davidson motorcycle is a critical component that powers the engine, charges the battery, and keeps the engine running by creating sparks and injecting the proper amount of fuel. Understanding the fundamentals of the electrical system can help you diagnose and troubleshoot issues that may arise, such as the B1362 code.

Battery and Charging System

The battery is the heart of the electrical system, providing the power necessary to start the engine and keep it running. The charging system, which includes the alternator, regulator, and rectifier, ensures that the battery is charged and ready to go when you need it.

It is essential to maintain your battery and charging system to ensure proper operation. Regularly check your battery’s voltage and the charging system’s output to ensure that they are within the manufacturer’s recommended specifications. If you notice any issues, such as a low battery voltage or a weak charging system, it may be time to replace the battery or have the charging system serviced.

Ignition and Starting System

The ignition and starting system work together to start the engine and keep it running. The ignition system creates the spark necessary to ignite the fuel and air mixture in the engine, while the starting system uses the battery’s power to turn the engine over and get it running.

The ignition and starting system can be affected by a variety of issues, such as a faulty ignition switch or a weak battery. If you notice any issues with starting your motorcycle, such as slow cranking or a failure to start, it may be time to have your ignition and starting system checked.

Run/Stop Switch

The run/stop switch is a critical component of the electrical system, allowing you to turn the engine on and off. It is important to ensure that the switch is functioning correctly to prevent issues such as a failure to start or a stalled engine.

Regularly check your run/stop switch to ensure that it is functioning correctly. If you notice any issues, such as difficulty starting the engine or a failure to turn it off, it may be time to have your switch checked or replaced.

Understanding the fundamentals of the electrical system can help you diagnose and troubleshoot issues that may arise, such as the B1362 code. By regularly maintaining your battery, charging system, ignition, starting system, and run/stop switch, you can help ensure that your Harley-Davidson motorcycle is running smoothly and reliably.

Body Control Module (BCM) Overview

The Body Control Module (BCM) is a vital component in Harley Davidson motorcycles. It serves as a central hub for controlling various electrical systems and accessories in the bike. The BCM is responsible for managing and controlling the lighting, ignition, and security system of the motorcycle. It communicates with other modules in the bike through a communication network called the Controller Area Network (CAN bus).

BCM Functions and Responsibilities

The BCM has several functions and responsibilities in a Harley Davidson motorcycle. Some of the key functions of the BCM include:

  • Controlling the lighting system of the motorcycle, including the headlights, taillights, and turn signals.
  • Managing the ignition system of the bike, including the starter and spark plugs.
  • Controlling the security system of the motorcycle, including the alarm and immobilizer.

BCM Related Error Codes

Harley Davidson motorcycles may encounter several error codes related to the BCM. Some of the common error codes include:

  • B1103: This error code indicates a fault in the BCM’s internal memory.
  • B1153: This error code indicates a fault in the BCM’s ignition switch output.
  • B1200: This error code indicates a fault in the BCM’s security system.

One of the most common error codes related to the BCM is B1362. This error code indicates a fault in the BCM’s turn signal module. It is usually triggered when the BCM detects an open or short circuit in the turn signal wiring. If you encounter this error code, it is recommended that you check the turn signal wiring and connections for any damage or loose connections.

In conclusion, the BCM is a critical component in a Harley Davidson motorcycle. It is responsible for managing and controlling various electrical systems and accessories in the bike. If you encounter any error codes related to the BCM, it is recommended that you consult a Harley Davidson technician for proper diagnosis and repair.

Harley’s CAN Bus Network

If you own a Harley-Davidson motorcycle manufactured after 2004, chances are it has a Controller Area Network (CAN) bus network. This network is responsible for transferring multiple bits of data over a single wire, allowing the motorcycle’s various electronic components to communicate with each other.

CAN Bus Components

The CAN bus network consists of several components, including the Engine Control Module (ECM), Vehicle Speed Sensor (VSS), and the radio. The ECM is responsible for controlling the engine’s performance and monitoring its various sensors. The VSS is responsible for measuring the motorcycle’s speed and relaying that information to the ECM. The radio is responsible for providing entertainment and communication options to the rider.

Troubleshooting CAN Bus Issues

If you experience issues with your Harley’s CAN bus network, it can be challenging to diagnose the problem. One of the most common issues is a faulty connection or a short circuit. To troubleshoot these issues, you can use a diagnostic tool to read the error codes stored in the motorcycle’s memory.

One error code you may encounter is B1362, which indicates a rear left headset shorted high. This error code can be caused by a faulty headset or a short circuit in the wiring. To fix this issue, you can check the headset and wiring for damage and replace any faulty components.

Another issue you may encounter is a CAN bus performance error, which can be caused by a faulty ECM or a malfunctioning VSS. To diagnose this issue, you can use a diagnostic tool to read the error codes stored in the motorcycle’s memory and replace any faulty components.

In conclusion, the CAN bus network is a crucial component of your Harley-Davidson motorcycle, responsible for allowing the various electronic components to communicate with each other. If you experience any issues with your motorcycle’s CAN bus network, it is essential to diagnose and fix the problem as soon as possible to avoid further damage.

Switches and Sensors Malfunctions

If your Harley-Davidson motorcycle is displaying the B1362 trouble code, it indicates that there is a problem with the rear left headset shorted high. This is a common issue that can be caused by a malfunctioning switch or sensor. In this section, we will take a look at some of the most common switch and sensor malfunctions that can cause the B1362 code to appear.

Run/Stop Switch Issues

The run/stop switch is an essential component of your Harley-Davidson motorcycle. It is responsible for turning the engine on and off. If this switch malfunctions, it can cause a variety of problems, including the B1362 trouble code. One common issue with the run/stop switch is that it can become stuck in the on or off position. This can cause the engine to either not start or not turn off when the switch is pressed.

Vehicle Speed Sensor (VSS) Problems

The Vehicle Speed Sensor (VSS) is another crucial component of your Harley-Davidson motorcycle. It is responsible for monitoring the speed of your vehicle and transmitting that information to the engine control module (ECM). If the VSS malfunctions, it can cause a variety of issues, including the B1362 trouble code. One common issue with the VSS is that it can become damaged or dirty, which can cause it to malfunction.

If you are experiencing the B1362 trouble code, it is essential to have your motorcycle inspected by a qualified mechanic. They can diagnose the issue and determine the best course of action to fix it. Some other switch and sensor malfunctions that can cause the B1362 code to appear include brake switch issues and P0134 oxygen sensor circuit issues. However, these issues are less common and should only be considered after ruling out the run/stop switch and VSS problems.

Handling Specific Error Codes

If you are experiencing error code B1362 on your Harley-Davidson, it means that the rear left headset is shorted high. This can be caused by a variety of issues, including a faulty headset or damaged wiring. Here are some troubleshooting tips to help you resolve this issue:

Error Code B1346 and B1350

If you are experiencing error codes B1346 or B1350, it means that the radio is not communicating with the body control module (BCM). This can be caused by a variety of issues, including a faulty radio or damaged wiring. Here are some troubleshooting tips to help you resolve this issue:

  • Check the connections between the radio and the BCM to ensure that they are clean and tight.
  • Check the wiring between the radio and the BCM to ensure that it is not damaged or frayed.
  • Replace the radio if it is determined to be faulty.

Troubleshooting B1310 and B1318

If you are experiencing error codes B1310 or B1318, it means that there is a problem with the turn signal module (TSM). This can be caused by a variety of issues, including a faulty TSM or damaged wiring. Here are some troubleshooting tips to help you resolve this issue:

  • Check the connections between the TSM and the BCM to ensure that they are clean and tight.
  • Check the wiring between the TSM and the BCM to ensure that it is not damaged or frayed.
  • Replace the TSM if it is determined to be faulty.

By following these troubleshooting tips, you should be able to resolve error code B1362 and other related issues on your Harley-Davidson. If you are unable to resolve the issue on your own, it is recommended that you take your motorcycle to a certified Harley-Davidson technician for further assistance.

Maintenance and Prevention

Regular Check-Ups

Regular check-ups are essential in maintaining your Harley-Davidson’s performance and longevity. It is recommended to have your bike inspected by a professional mechanic at least once a year. During this inspection, the mechanic will check your battery, load, and current to ensure that they are all functioning correctly.

You can also perform some basic maintenance yourself to prevent code B1362 and other electrical issues. Regularly check your battery’s terminals for corrosion and clean them if necessary. Additionally, ensure that your battery is securely fastened in place and that the cables are not loose.

Upgrading Electrical Components

Upgrading your Harley-Davidson’s electrical components can also help prevent code B1362 and other electrical issues. Consider upgrading to a high-quality battery with a higher cold cranking amp (CCA) rating to ensure that your bike starts reliably.

You may also want to upgrade your bike’s charging system to a higher output alternator or stator. This will help ensure that your battery is always charged and that your bike’s electrical components are receiving enough power.

In conclusion, regular maintenance and upgrades to your Harley-Davidson’s electrical components can help prevent code B1362 and other electrical issues. By taking care of your bike, you can ensure that it runs smoothly and reliably for years to come.

Advanced Troubleshooting Techniques

If you have encountered Harley code B1362, you may be wondering what the next steps are. While some issues can be resolved with a simple reset, others may require more advanced troubleshooting techniques. In this section, we will discuss a few techniques to help you diagnose and fix the issue.

Utilizing Service Manuals

One of the most important tools in your troubleshooting arsenal is the service manual. These manuals provide detailed information about your motorcycle and can help you diagnose and fix a wide range of issues. If you are not already familiar with your service manual, now is the time to start.

When troubleshooting Harley code B1362, you will want to refer to the section of your service manual that covers the Body Control Module (BCM). This section will provide you with information about the various components of the BCM, as well as diagnostic procedures and troubleshooting tips.

When to Consult a Professional

While some issues can be resolved with basic troubleshooting techniques, others may require the help of a professional. If you have tried all of the troubleshooting steps outlined in your service manual and are still experiencing issues, it may be time to consult a professional.

A Harley-Davidson dealership or certified mechanic will have the expertise and tools necessary to diagnose and fix complex issues like Harley code B1362. They can also provide you with advice and guidance on how to prevent similar issues from occurring in the future.

Remember, it is always better to be safe than sorry when it comes to your motorcycle. If you are not confident in your ability to diagnose and fix an issue, it is best to seek professional help.

By using these advanced troubleshooting techniques, you can diagnose and fix Harley code B1362 with ease. Whether you consult your service manual or seek professional help, remember to take your time and approach the issue with a calm and methodical mindset.

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