If you’re a Harley-Davidson owner, you may have encountered the B1316 code at some point. This code indicates that the left button on your LHCM (Left Hand Control Module) is stuck. This can be frustrating, especially if you rely on the button to control important functions on your bike. However, with some troubleshooting and the right tools, you can easily fix this issue and get back on the road.
One of the main causes of the B1316 code is a faulty LHCM. The LHCM is responsible for controlling various functions on your Harley, including the turn signals, horn, and high beam. If the LHCM is not functioning properly, it can cause the left button to get stuck and trigger the B1316 code. In some cases, the LHCM may need to be replaced to fix the issue.
Another possible cause of the B1316 code is a wiring issue. If the wiring between the LHCM and the main control module is damaged or faulty, it can cause the left button to get stuck and trigger the code. In this case, you may need to inspect the wiring and replace any damaged components. It’s important to note that wiring issues can be difficult to diagnose, so it’s best to consult a professional if you’re not confident in your abilities.
Understanding Harley Diagnostic Codes
If you own a Harley-Davidson motorcycle, you may encounter various error codes that show up on your dashboard. These codes are known as Diagnostic Trouble Codes (DTC), and they can help you diagnose problems with your bike. In this section, we’ll cover some basics about DTC and Harley’s system, as well as some common error codes you may encounter.
DTC and Harley’s System
Harley-Davidson motorcycles use an onboard diagnostic system to monitor various components and systems of the bike. This system is known as the Electronic Control Module (ECM), and it communicates with other modules in the bike, such as the Body Control Module (BCM) and the Anti-Lock Brake System (ABS) module.
When a problem is detected, the ECM generates a DTC, which is a code that identifies the specific problem. This code is then stored in the ECM’s memory, and it can be retrieved using a diagnostic tool.
Common Harley Error Codes
Here are some common error codes you may encounter while diagnosing your Harley-Davidson motorcycle:
- B1103: Front Turn Signal Output Short to Ground
- B1153: Sidecar BAS Low/Open
- B1200: Fuel Sender Open/Low
- B1338: Fuel Injector Open/Low
- B1342: ECU Ground/Voltage Out of Range
- B1346: Bank Angle Sensor Tripped
- B1350: Ignition Output Stage Circuit Short to Battery
If you encounter any of these error codes, it’s important to diagnose the problem as soon as possible. Ignoring an error code can lead to more serious problems down the road.
In conclusion, understanding Harley diagnostic codes can help you diagnose problems with your motorcycle and keep it running smoothly. If you’re not comfortable diagnosing problems on your own, it’s always best to take your bike to a professional mechanic.
Electrical System Fundamentals
When it comes to the electrical system of your Harley, it’s important to understand the basics of how it works. The electrical system powers the engine for start-up, charges the battery, keeps the engine running by creating sparks, and injects the proper amount of fuel. Understanding these fundamentals will help you diagnose and fix any issues that may arise.
Battery and Charging
The battery is the heart of the electrical system. It stores electrical energy and provides power to the starter motor, ignition system, and lights. The charging system consists of the stator, regulator, and battery. The stator generates AC voltage that is regulated by the regulator to produce DC voltage to charge the battery.
If your battery is not charging properly, it may be due to a faulty stator, regulator, or battery. You can test the charging system with a voltmeter to check the voltage output. If the voltage is below 12.2 volts, your battery may not be charging properly.
Ignition System
The ignition system is responsible for creating the spark that ignites the fuel in the combustion chamber. It consists of the ignition coil, spark plug wires, spark plugs, and ignition module. The ignition module controls the timing and duration of the spark.
If your ignition system is not working properly, it may be due to a faulty ignition coil, spark plug wires, spark plugs, or ignition module. You can test the ignition system with a spark tester to check for spark. If there is no spark, you may need to replace one of these components.
Understanding the battery and charging system, as well as the ignition system, is crucial to maintaining a healthy electrical system on your Harley. Keep an eye on your battery voltage and test your ignition system regularly to ensure everything is working properly. If you encounter the B1316 code, it may indicate a short to ground in the battery saver relay coil circuit. In this case, you can follow the steps provided in the search results to fix the issue.
Harley Control Modules
When it comes to the electronic systems in your Harley-Davidson motorcycle, there are a few key control modules that you should be aware of. These modules are responsible for managing various aspects of your bike’s performance, from engine management to lighting and instrument clusters. In this section, we’ll take a closer look at two of the most important control modules in your Harley-Davidson: the Body Control Module (BCM) and the Engine Control Module (ECM).
Body Control Module (BCM)
The Body Control Module (BCM) in your Harley-Davidson is responsible for managing a wide range of functions related to the body of your bike. This includes things like lighting, instrument clusters, and other electrical components. The BCM communicates with other modules in your bike’s electronic system to ensure that everything is working together properly.
If you’re experiencing issues with your bike’s lighting or instrument cluster, it’s possible that there could be a problem with the BCM. One common error code associated with the BCM is the B1316 error code, which indicates a LHCM (Left Hand Control Module) internal error. This error can sometimes be caused by a stuck button on the LHCM, so it’s worth checking to see if any of the buttons on your left hand control module are stuck.
Engine Control Module (ECM)
The Engine Control Module (ECM) in your Harley-Davidson is responsible for managing the performance of your bike’s engine. This includes things like fuel injection, ignition timing, and other critical engine functions. The ECM communicates with other modules in your bike’s electronic system to ensure that your engine is running smoothly and efficiently.
If you’re experiencing issues with your bike’s engine performance, it’s possible that there could be a problem with the ECM. However, the B1316 error code is not typically associated with the ECM. Instead, you may see error codes related to other engine components, such as the fuel system or ignition system.
In summary, the BCM and ECM are two of the most important control modules in your Harley-Davidson motorcycle. If you’re experiencing issues with your bike’s electrical or engine systems, it’s worth checking to see if there are any error codes associated with these modules. By understanding how these modules work and what they’re responsible for, you can better diagnose and troubleshoot any issues that arise.
CAN Bus and Network Issues
CAN Bus Explained
The Controller Area Network (CAN) bus is a communication system that allows different components of the vehicle to communicate with each other. The Harley Davidson BCM and ECU communicate with each other through the CAN bus. The CAN bus is a complex system that is prone to errors. If there is an issue with the CAN bus, it can cause a variety of problems with the bike’s electrical systems, including lighting, turn signals, and ignition.
Troubleshooting Network Errors
If you are experiencing issues with the CAN bus, it is important to troubleshoot the problem as soon as possible. One common issue that you may encounter is the B1316 error code. This code indicates that the LHCM left button is stuck. However, this code can also be caused by other issues related to the CAN bus and network errors.
Here are some other error codes related to the CAN bus and network issues that you may encounter:
| Error Code | Description |
|---|---|
| B2102 | LHCM Left Turn Output Open |
| B2103 | LHCM Right Turn Output Open |
| B2104 | LHCM Hazard Output Open |
| B2112 | LHCM Left Turn Output Short to Ground |
| B2113 | LHCM Right Turn Output Short to Ground |
| B2114 | LHCM Hazard Output Short to Ground |
If you are experiencing any of these error codes, it is important to take your bike to a qualified technician. They will be able to diagnose the issue and provide you with the necessary repairs.
In conclusion, the CAN bus is a complex system that is prone to errors. If you are experiencing issues with the CAN bus or network errors, it is important to troubleshoot the problem as soon as possible. If you encounter any of the error codes mentioned above, take your bike to a qualified technician to diagnose and repair the issue.
Troubleshooting Code B1316
If you are experiencing issues with your Harley-Davidson motorcycle, the self-diagnostic system may generate a Diagnostic Trouble Code (DTC) to indicate the malfunction. One of the most common DTCs is B1316, which indicates that the left button on the Left Hand Control Module (LHCM) is stuck.
Step-by-Step Diagnostic
To diagnose and troubleshoot code B1316, you will need a few tools and equipment, including a Harley-Davidson Digital Technician II (DTII) or Digital Technician III (DTIII) scan tool, a set of metric Allen wrenches, and a digital multimeter.
Follow these steps to diagnose and troubleshoot code B1316:
- Disconnect the LHCM connector from the motorcycle’s wiring harness.
- Inspect the LHCM connector pins for damage, corrosion, or poor connections. Clean and repair as necessary.
- Reconnect the LHCM connector to the wiring harness.
- Turn on the motorcycle’s ignition switch and start the engine.
- Use the DTII or DTIII scan tool to read the LHCM DTCs.
- If code B1316 is present, use the scan tool to clear the code and verify that it does not return.
- If code B1316 returns, replace the LHCM.
Tools and Equipment
To diagnose and troubleshoot code B1316, you will need the following tools and equipment:
- Harley-Davidson Digital Technician II (DTII) or Digital Technician III (DTIII) scan tool
- Metric Allen wrenches
- Digital multimeter
Make sure to have these tools and equipment on hand before attempting to diagnose and troubleshoot code B1316.
By following these steps and using the right tools and equipment, you can diagnose and troubleshoot code B1316 on your Harley-Davidson motorcycle. If you are unsure about any aspect of the diagnostic process, consult your motorcycle’s owner’s manual or contact a certified Harley-Davidson technician for assistance.
Handlebar Controls Malfunctions
If you are experiencing issues with your Harley-Davidson handlebar controls, it can be frustrating and dangerous. The handlebar controls are essential for operating your motorcycle, and malfunctions can put you at risk on the road. In this section, we will discuss some common issues with the left and right hand control modules (LHCM and RHCM) and how to troubleshoot them.
Left Hand Control Module (LHCM)
The LHCM is responsible for controlling the turn signals, horn, and high/low beam switch. If you are experiencing issues with any of these functions, it may be due to a malfunctioning LHCM. One common issue is a broken LHCM wire, which can cause the turn signals to stop working. To troubleshoot this issue, check the LHCM wire for any damage or breaks. If you find any issues, replace the wire with a new one.
Another common issue with the LHCM is a malfunctioning horn. If your horn is not working, it may be due to a faulty LHCM. To troubleshoot this issue, check the LHCM wiring for any loose connections or damage. If you find any issues, repair or replace the wiring as needed.
Right Hand Control Module (RHCM)
The RHCM is responsible for controlling the starter, throttle, and cruise control. If you are experiencing issues with any of these functions, it may be due to a malfunctioning RHCM. One common issue is a malfunctioning run/stop switch, which can cause the motorcycle to not start. To troubleshoot this issue, check the run/stop switch for any damage or loose connections. If you find any issues, repair or replace the switch as needed.
Another common issue with the RHCM is a faulty fuel signal high. This can cause the engine to run poorly or not start at all. To troubleshoot this issue, check the fuel signal high wiring for any damage or loose connections. If you find any issues, repair or replace the wiring as needed.
In conclusion, it is important to regularly inspect your handlebar controls for any issues or malfunctions. By identifying and addressing these issues early, you can avoid dangerous situations on the road. If you are unsure how to troubleshoot or repair any handlebar control issues, consult a professional mechanic.
Audio System Errors
If you are experiencing issues with your Harley’s audio system, it could be due to a variety of factors. One of the most common error codes associated with audio system problems is B1316. This code refers to the left-hand control module (LHCM) left button being stuck.
Radio and Sound Issues
If you are having trouble with your radio or sound system, it could be due to a number of factors. One possible cause is an overloaded ACC output. This can be caused by having too many accessories connected to the system. Another possible cause is a shorted H2 output. This can be caused by a damaged speaker or wiring issue.
To troubleshoot these issues, you may need to consult your Harley’s manual or take it to a certified technician. They can help you diagnose the issue and recommend the appropriate solutions.
Speaker and Volume Controls
If you are experiencing issues with your speakers or volume controls, it could be due to a number of factors. One possible cause is a damaged speaker. This can be caused by wear and tear or exposure to the elements. Another possible cause is a malfunctioning volume control. This can be caused by a wiring issue or a faulty control module.
To troubleshoot these issues, you may need to check your speakers and wiring for damage. You may also need to test your volume controls to see if they are functioning properly. If you are unsure how to perform these tests, it is recommended that you consult your Harley’s manual or take it to a certified technician.
In conclusion, if you are experiencing audio system errors on your Harley, it is important to diagnose the issue as soon as possible. By taking the appropriate steps, you can ensure that your audio system is functioning properly and that you are able to enjoy your ride to the fullest.
Advanced Troubleshooting Techniques
When dealing with complex error codes such as B1316, advanced troubleshooting techniques may be required to properly diagnose and fix the issue. Here are some techniques you can use to help you identify the root cause of the problem.
Using Advanced Diagnostic Equipment
One of the most effective ways to troubleshoot a B1316 error code is by using advanced diagnostic equipment. Tools such as the Fuel Injection (FI) Module, the Ignition Switch System (ISS), and the Vehicle Speed Sensor (VSS) can help you identify the exact location of the problem.
For example, the FI Module can be used to check the fuel system and identify any issues with the fuel injectors. The ISS can be used to check the ignition system and identify any issues with the spark plugs or ignition coils. The VSS can be used to check the speedometer and identify any issues with the speed sensor.
Interpreting Complex Error Patterns
Another technique you can use to troubleshoot a B1316 error code is by interpreting complex error patterns. This involves looking at the error code in conjunction with other error codes and warning lights.
For example, if you see a Check Engine Light (CEL) along with the B1316 error code, this could indicate a problem with the oxygen sensor (P0134). By interpreting the error pattern, you can identify the root cause of the problem and take the necessary steps to fix it.
Overall, advanced troubleshooting techniques can be very helpful when dealing with complex error codes such as B1316. By using advanced diagnostic equipment and interpreting complex error patterns, you can quickly identify the root cause of the problem and take the necessary steps to fix it.