If you own a Harley-Davidson motorcycle, you may have encountered an error code 81352. This error code is related to the rear right speaker shorted high in the Harley-Davidson onboard diagnostic system. When you see this code, it means that there is a problem with the rear right speaker, which could be caused by a short circuit or other issues.
To diagnose and fix the problem, you can take your motorcycle to an authorized Harley-Davidson dealer or troubleshoot it yourself if you have the necessary skills and tools. One way to troubleshoot the issue is to check the wiring and connections for the rear right speaker. You may need to replace the speaker or the wiring if they are damaged or faulty.
It is important to address the 81352 error code as soon as possible to prevent further damage to your motorcycle’s audio system. By taking prompt action, you can ensure that you can enjoy your Harley-Davidson motorcycle with high-quality sound and without any issues.
Understanding Harley Code 81352
Harley Code 81352 is a diagnostic trouble code (DTC) that is used to identify mutations associated with Li-Fraumeni syndrome. This code describes the targeted sequence analysis of the TP53 gene. Harley Code 81352 is a medical procedural code under the range – Genetic Analysis Procedures.
To understand Harley Code 81352, you should know that Li-Fraumeni syndrome is a rare genetic disorder that increases the risk of developing several types of cancer, including breast cancer, bone cancer, and brain cancer. The TP53 gene is a tumor suppressor gene that helps prevent the development of cancer cells. Mutations in the TP53 gene can lead to the development of cancer and increase the risk of Li-Fraumeni syndrome.
If your Harley-Davidson motorcycle displays Code 81352, it means that the onboard diagnostic system has detected a current or historic trouble code related to the targeted sequence analysis of the TP53 gene. This code may indicate that there is a problem with the TP53 gene or that there is an increased risk of developing cancer.
To diagnose and treat Harley Code 81352, you should consult a medical professional who specializes in genetics. They can perform a targeted sequence analysis of the TP53 gene and determine if there are any mutations that are associated with Li-Fraumeni syndrome.
In summary, Harley Code 81352 is a diagnostic trouble code used to identify mutations associated with Li-Fraumeni syndrome. If your motorcycle displays this code, it is important to consult a medical professional who specializes in genetics to diagnose and treat any potential problems.
Diagnostic Trouble Code Basics
DTC Definitions
When your Harley-Davidson motorcycle encounters a problem, it may generate a Diagnostic Trouble Code (DTC). A DTC is a set of alphanumeric codes that are generated by the onboard diagnostic system (OBD) when it detects one or more malfunction sensors, circuits, or components. Each code corresponds to a specific problem, and it is essential to understand what each code means to diagnose and fix the issue.
Reading Trouble Codes
To read the trouble codes on your Harley-Davidson motorcycle, you need to turn the ignition switch to the “On” position without starting the engine. After that, you need to access the diagnostic system by pressing and releasing the trip odometer trigger switch. Wait for “diag” to appear on the odometer display. After “diag” displays, press and release the trip odometer trigger switch again.
If your motorcycle has generated a DTC, it will be displayed on the odometer display. For example, if your Harley-Davidson motorcycle has generated the DTC 81352, it means that the rear right speaker is shorted high. You can use this information to diagnose and fix the problem.
It is important to note that some DTCs may require a professional diagnosis or repair. If you are unsure about how to diagnose or fix a problem, it is always best to consult an authorized Harley-Davidson dealer or mechanic.
Remember, your Harley-Davidson motorcycle’s battery, ignition, and ECU play a crucial role in generating and reading DTCs. Always ensure that these components are in good condition to avoid any issues.
Common Harley Error Codes
If you are a Harley owner, you might have encountered certain error codes that appear on your dashboard. In this section, we will take a closer look at some of the most common Harley error codes and what they mean.
B1103 to B1345 Code Series
The B1103 to B1345 code series is related to the body control module (BCM) of your Harley. If you encounter any of these codes, it might indicate that there is an internal error in your left-hand control module (LHCM) or right-hand control module (RHCM).
To fix this issue, you might need to replace the control module. However, before you do that, make sure to check the wiring connections and fuses to ensure they are not the problem.
Fuel Signal and Volume Button Issues
Another common error code that Harley owners might encounter is related to the fuel signal and volume button. If you see the code “B1306,” it might indicate that your rear volume up button is stuck. This can be a frustrating issue, but it is relatively easy to fix. Simply clean the button or replace it if necessary.
If you encounter the “Fuel signal high” code, it might indicate that there is an issue with your fuel system. This could be caused by a faulty fuel pump or a clogged fuel filter. To fix this issue, you might need to replace the fuel pump or clean/replace the fuel filter.
In conclusion, encountering error codes on your Harley can be frustrating, but most issues can be fixed with a little bit of troubleshooting and some basic knowledge. By understanding what these error codes mean, you can diagnose and fix issues quickly and easily.
Electrical System Components
When it comes to Harley Davidson motorcycles, the electrical system components are crucial for the proper functioning of the bike. In this section, we will discuss the battery and ignition systems, as well as the control modules that are involved in the operation of the electrical system.
Battery and Ignition Systems
The battery and ignition systems are responsible for starting the motorcycle and keeping it running. The battery provides the necessary power to start the engine, while the ignition system creates the spark that ignites the fuel in the combustion chamber.
The battery is a crucial component of the electrical system, and it is important to ensure that it is in good condition. A weak or dead battery can cause issues with starting the bike and can even damage other components of the electrical system. It is recommended to check the battery voltage regularly and replace it when necessary.
The ignition system uses the battery’s power to create a spark that ignites the fuel in the combustion chamber. This system includes the spark plugs, ignition coils, and other components that are responsible for creating and distributing the spark. It is important to ensure that these components are in good condition and that they are properly connected.
Control Modules
The control modules are responsible for monitoring and controlling various components of the electrical system. These modules include the Body Control Module (BCM), Engine Control Unit (ECU), and Controller Area Network (CAN).
The BCM is responsible for controlling various systems such as the lighting, security, and communication systems. It receives input from various sensors and switches and sends signals to the appropriate components to control their operation.
The ECU is responsible for controlling the engine’s operation, including fuel injection, ignition timing, and other critical functions. It receives input from various sensors such as the oxygen sensor and throttle position sensor and adjusts the engine’s operation accordingly.
The CAN is responsible for communication between various components of the electrical system. It allows different components to communicate with each other and share information such as sensor data and control signals.
Overall, the electrical system components of a Harley Davidson motorcycle are crucial for the proper functioning of the bike. It is important to ensure that these components are in good condition and properly connected to prevent issues with starting the bike and to ensure safe operation.
Sensor and Actuator Information
When it comes to troubleshooting Harley codes, it’s important to have a solid understanding of the various sensors and actuators that are present in your motorcycle. In this section, we’ll provide you with some information on the different types of sensors and actuators that you might encounter, including temperature and pressure sensors, vehicle speed sensors, and throttle position sensors.
Temperature and Pressure Sensors
Temperature and pressure sensors are two of the most common types of sensors that you’ll find on a Harley. These sensors are responsible for monitoring the temperature and pressure of various fluids and gases throughout the motorcycle, including the intake air, exhaust gas, and fuel.
The Intake Air Temperature (IAT) sensor is responsible for monitoring the temperature of the air that is entering the engine. If this sensor fails or becomes damaged, it can result in a number of problems, including poor fuel economy, rough idling, and decreased performance.
The Intake Manifold Absolute Pressure (IMAP) sensor is responsible for monitoring the pressure of the air that is entering the engine. If this sensor fails or becomes damaged, it can result in a number of problems, including poor fuel economy, rough idling, and decreased performance.
Vehicle Speed and Throttle Position Sensors
Another important set of sensors that you’ll find on a Harley are the vehicle speed and throttle position sensors. These sensors are responsible for monitoring the speed of the motorcycle and the position of the throttle.
The Vehicle Speed Sensor (VSS) is responsible for monitoring the speed of the motorcycle. If this sensor fails or becomes damaged, it can result in a number of problems, including inaccurate speedometer readings, transmission shifting issues, and decreased performance.
The Throttle Position Sensor (TPS) is responsible for monitoring the position of the throttle. If this sensor fails or becomes damaged, it can result in a number of problems, including poor fuel economy, rough idling, and decreased performance.
Overall, it’s important to have a solid understanding of the various sensors and actuators that are present in your Harley. By familiarizing yourself with these components, you’ll be better equipped to diagnose and troubleshoot any problems that might arise.
Harley-Davidson Communication Networks
Harley-Davidson motorcycles are equipped with various electronic control modules that communicate with each other over a network. This network is commonly referred to as the Controller Area Network (CAN) Bus. The CAN Bus is a communication protocol that allows different modules to share information with each other, such as engine data, diagnostic trouble codes, and control signals.
CAN Bus Explained
The CAN Bus is a two-wire communication system that consists of a high-speed CAN Bus (+) wire and a low-speed CAN Bus (-) wire. The CAN Bus wires are used to transmit and receive signals between the different modules on the motorcycle. The CAN Bus is a highly reliable and efficient communication system that allows the modules to communicate with each other in real-time.
Module Communication
Harley-Davidson motorcycles have several modules that communicate with each other over the CAN Bus. These modules include the Engine Control Unit (ECU), Body Control Module (BCM), Left-Hand Control Module (LHCM), and Right-Hand Control Module (RHCM). The ECU is responsible for controlling the engine and transmission, while the BCM controls the lighting, security, and other body-related functions. The LHCM and RHCM control the left and right handlebar controls, respectively.
When a module detects a fault, it can transmit a diagnostic trouble code (DTC) over the CAN Bus to the other modules. This DTC can be read using a diagnostic tool or by using the trip reset button on the motorcycle. For example, the DTC 81352 indicates a shorted high rear right speaker in the rear speaker diagnostics. This DTC can be helpful in diagnosing and repairing faults on the motorcycle.
In conclusion, understanding the Harley-Davidson communication networks is essential for diagnosing and repairing faults on the motorcycle. The CAN Bus is a highly reliable and efficient communication system that allows the different modules to communicate with each other in real-time. By knowing the different modules and their functions, you can better understand how the motorcycle operates and diagnose any faults that may arise.
Troubleshooting and Repair Strategies
Step-by-Step Diagnostic Procedures
When you encounter Harley code 81352, it’s important to follow a step-by-step diagnostic procedure to determine the root cause of the problem. Here are the steps you can take to troubleshoot the issue:
- Check the battery voltage: Low battery voltage can cause BCM problems. Make sure the battery voltage is at least 12.5 volts.
- Check the fuses: Check the fuses for the BCM and make sure they’re not blown.
- Check the connections: Check the connections to the BCM and make sure they’re clean and tight.
- Perform odometer self-diagnostics test: To verify repair and DTCs have been cleared, perform an odometer self-diagnostics test. If any DTCs are still present, refer to diagnostics (pages 1-2).
Repair and Replacement Tips
Once you’ve identified the problem and determined the cause, you’ll need to repair or replace the affected components. Here are some tips to help you with the repair or replacement process:
- If the battery voltage is low, recharge or replace the battery as needed.
- If the fuses are blown, replace them with the correct type and rating.
- If the connections are dirty or loose, clean or tighten them as needed.
- If the BCM is faulty, replace it with a new one.
Remember to always use the correct tools and follow proper safety procedures when working on your Harley. With these troubleshooting and repair strategies, you can quickly and easily resolve Harley code 81352 and get back on the road with confidence.
Maintenance and Prevention
Harley code 81352 can be a frustrating issue to deal with, but there are steps you can take to prevent it from occurring in the first place. Here are some tips to help you maintain and prevent this code from appearing:
- Check your battery regularly. A low battery voltage can cause issues with the ignition system and lead to codes like 81352. Make sure your battery is fully charged and in good condition.
- Keep your ignition system clean and well-maintained. Dirty or damaged components can cause problems with the ECU and trigger fault codes. Regularly inspect and clean your ignition system to ensure it’s functioning properly.
- Check for any other DTCs that may be related to code 81352. Sometimes, other codes can be the root cause of this issue. Use a diagnostic tool to check for any other DTCs that may be present.
- If you’re experiencing issues with your ECU, consider having it serviced or replaced. Faulty ECU components can cause a variety of issues, including code 81352. A professional mechanic can diagnose and repair any issues with your ECU.
By following these tips, you can help prevent code 81352 from appearing and keep your Harley running smoothly. Remember to stay on top of regular maintenance and address any issues as soon as they arise to avoid more serious problems down the road.