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Harley Code B1335: How to Troubleshoot and Fix It

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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 own a Harley-Davidson motorcycle, you are probably familiar with the various codes that can appear on your dashboard. One of the most common codes that riders encounter is B1335. This code indicates that the faceplate preset button 7 is stuck.

When your motorcycle’s faceplate preset button 7 is stuck, it can cause a range of issues. For example, you may not be able to adjust your radio presets or use other features that rely on this button. Additionally, a stuck button can be frustrating to deal with and may detract from your overall riding experience. Fortunately, there are steps you can take to diagnose and fix this issue.

Understanding Harley Code B1335

Harley Code B1335 is a diagnostic trouble code (DTC) that indicates a “Door Ajar Right Rear Circuit Failure”. This means that there is a problem with the circuit that controls the right rear door of your Harley Davidson.

To diagnose this issue, you will need to use a diagnostic tool or read the DTC codes on your Harley Davidson without a diagnostic tool by using the trip reset button. Once you have identified the B1335 code, you will need to check the ECU (Engine Control Unit) or BCM (Body Control Module) for any faults.

In some cases, the B1335 code can be caused by a faulty ignition switch or a dead battery. Therefore, it is important to check these components as well. You can use a multimeter to test the battery and ignition switch. If you find any faults, you will need to replace the faulty component.

The following table lists some possible causes of the B1335 code:

Possible Causes
Faulty right rear door circuit
Faulty ECU or BCM
Faulty ignition switch
Dead battery

If you are not comfortable diagnosing and fixing the issue yourself, it is recommended to take your Harley Davidson to a certified mechanic. They will be able to diagnose and fix the issue for you.

In summary, Harley Code B1335 indicates a “Door Ajar Right Rear Circuit Failure”. To diagnose and fix this issue, you will need to check the ECU or BCM, ignition switch, battery, and right rear door circuit. If you are not comfortable diagnosing and fixing the issue yourself, it is recommended to take your Harley Davidson to a certified mechanic.

Common Symptoms of Code B1335

If your Harley-Davidson motorcycle is experiencing B1335 code, there are a few symptoms that you may notice. Here are some of the most common symptoms:

  • The door ajar warning light illuminates: When the right rear door is not securely latched, the door ajar warning light will illuminate, and possibly show that specific door that is not closed. This is a clear indication that there is a malfunction with the door ajar circuit for the right rear door.
  • Faceplate preset button 7 stuck: This code can also indicate that the faceplate preset button 7 is stuck. You may notice that the button is not responding as it should when you try to use it.
  • Faulty speaker: In some cases, the B1335 code can indicate that the front left speaker is shorted together or open. This can cause issues with the audio system of your motorcycle.

If you are experiencing any of these symptoms, it is important to have your motorcycle checked by a professional mechanic. Ignoring these symptoms can lead to further damage and more expensive repairs down the line.

It is worth noting that the B1335 code can also be caused by issues with the wiring harness and connectors related to the fault code. Visually inspecting the wiring harness and connectors for any damage or corrosion is a good place to start when troubleshooting this code.

Overall, if you are experiencing the symptoms mentioned above, it is important to have your motorcycle diagnosed by a professional mechanic to determine the root cause of the issue and prevent further damage.

Diagnostic Procedures for B1335

If you are experiencing a B1335 diagnostic trouble code (DTC) on your Harley-Davidson, it means that the self-diagnostic system has detected a failure in the door ajar right rear circuit. Here are some diagnostic procedures you can follow to troubleshoot the issue:

  1. Check the wiring and connectors: Inspect the wiring and connectors for any damages, corrosion, or loose connections. Make sure the connectors are properly seated and locked. Repair or replace any damaged components as necessary.

  2. Check the door ajar switch: Test the door ajar switch for proper operation. You can do this by manually operating the switch and checking the continuity with a multimeter. Replace the switch if it is faulty.

  3. Check the BCM: The Body Control Module (BCM) is responsible for controlling various electrical functions in your Harley-Davidson, including the door ajar circuit. Check the BCM for any fault codes related to the door ajar circuit. If there are any codes present, diagnose and repair the issue as necessary.

  4. Check the CAN network: The Controller Area Network (CAN) is a communication network used by various modules in your Harley-Davidson to exchange data. Check the CAN network for any faults or communication errors that may be affecting the door ajar circuit.

  5. Check the radio: In some cases, the radio may be causing interference with the door ajar circuit. Test the radio for proper operation and check for any fault codes related to the radio. If there are any codes present, diagnose and repair the issue as necessary.

By following these diagnostic procedures, you can determine the root cause of the B1335 DTC and take the necessary steps to repair the issue. If you are unsure about any of these procedures or need further assistance, consult a certified Harley-Davidson mechanic.

Troubleshooting Electrical Components

If you’re experiencing issues with your Harley Davidson’s electrical components, there are a few things you can check to troubleshoot the problem. Here are some tips to get you started:

  • Check the battery voltage: A low battery voltage can cause issues with your Harley’s electrical components. Use a voltmeter to check the battery voltage and make sure it’s at least 12.5 volts. If it’s lower than that, try charging the battery and retesting.

  • Check the ignition switch: If your Harley won’t start, the ignition switch may be the culprit. Check to make sure it’s in the “on” position and that the run/stop switch is in the “run” position.

  • Check the fuses: If your Harley’s electrical components aren’t working, the fuses may be blown. Check the fuses for the affected components and replace them if necessary.

  • Check the connections: Loose or dirty connections can cause issues with your Harley’s electrical components. Check the connections to the affected components and make sure they’re clean and tight.

  • Check the radio channels: If you’re having issues with your Harley’s radio, check the radio channels to make sure they’re set correctly.

Remember, if you’re not comfortable troubleshooting your Harley’s electrical components on your own, it’s always best to take it to a qualified mechanic. They’ll have the knowledge and expertise to diagnose and fix the problem quickly and efficiently.

The Role of Body Control Module (BCM)

The Body Control Module (BCM) is a crucial component in Harley Davidson motorcycles that plays a vital role in the overall performance of the bike. It serves as the central hub for controlling and coordinating various electrical systems and accessories, ensuring smooth and efficient operation.

The BCM is responsible for managing and controlling various electrical systems, including lighting, the ignition system, and other critical functionalities. It communicates with other systems in the bike, such as the Engine Control Module (ECM), to ensure that all systems are working together seamlessly.

If you are experiencing issues with your Harley Davidson motorcycle, it is essential to understand the role of the BCM and its potential impact on your bike’s performance. Some common BCM-related error codes that you might encounter include B1103, B1153, B1200, B1210, B1211, B1212, B1213, B1300, B1301, B1302, B1303, B1304, B1305, B1306, B1309, B1310, B1312, B1313, B1314, B1315, B1316, B1317, B1318, B1319, B1320, B1321, B1322, B1323, B1324, B1325, B1326, B1327, B1328, B1330, B1331, B1332, B1334, B1335, B1336, B1337, B1339, B1340, B1341, B1343, B1344, B1345, B1347, B1348, B1349, B1351, B1353, B1354, B1355, B1356, B1357, B1358, and B1359.

In particular, if you are experiencing the B1335 error code, it indicates that there is a fault in the BCM’s internal memory. This can result in various issues, such as the bike’s lights not working correctly or the ignition system failing to operate as expected.

In conclusion, understanding the role of the BCM in your Harley Davidson motorcycle is essential for ensuring that your bike is operating at its best. If you are experiencing any issues, it is important to diagnose the problem correctly and take the necessary steps to resolve it.

Repair and Replacement Advice

If you have encountered the B1335 code in your Harley, it is important to repair or replace any faulty wiring in the door ajar circuit for the right rear door. This will help ensure that the door ajar warning light no longer illuminates when the rear right door is securely latched.

To repair the wiring, you will need to locate the damaged or broken wire and repair it using an appropriate method. This may involve splicing the wire, replacing a connector, or replacing the entire wire. If you are not familiar with wiring repair, it is recommended that you seek the help of a professional mechanic.

If the wiring is not damaged, the door ajar switch may need to be replaced. The switch is located in the door latch assembly and can be accessed by removing the door panel. Once the panel is removed, you can remove the latch assembly and replace the switch with a new one.

It is important to note that resetting the ECM may resolve the B1335 code in some cases. To do this, you can disconnect the battery for a few minutes and then reconnect it. However, this should only be done after any necessary repairs or replacements have been made.

Overall, repairing or replacing any faulty wiring or components in the door ajar circuit for the right rear door is the best way to resolve the B1335 code in your Harley. If you are unsure about how to proceed, it is recommended that you seek the help of a professional mechanic.

Preventative Maintenance Tips

To keep your Harley running smoothly and avoid issues like the B1335 code, regular preventative maintenance is key. Here are some tips to help you keep your bike in top shape:

Battery Maintenance

Your Harley’s battery is a critical component, and regular maintenance can help extend its life and prevent issues like starting problems. Here are some tips for keeping your battery in good condition:

  • Check the battery terminals regularly for corrosion. If you see buildup, use a wire brush to clean them.
  • Keep your battery clean and dry. Dirt and moisture can cause damage.
  • If you’re storing your bike for an extended period, remove the battery and store it in a cool, dry place. Make sure to charge it periodically to keep it from losing its charge.

Regular Oil Changes

Regular oil changes are essential for keeping your Harley’s engine running smoothly. Here are some tips for oil changes:

  • Follow the manufacturer’s recommendations for oil type and change frequency.
  • Check your oil level regularly and top off as needed.
  • Use high-quality oil and filters to ensure the best performance.

Tire Maintenance

Your Harley’s tires are critical for safety and performance. Here are some tips for tire maintenance:

  • Check your tire pressure regularly and adjust as needed.
  • Inspect your tires for signs of wear, such as cracks or bulges.
  • Replace your tires when the tread depth reaches 2/32 of an inch.

By following these preventative maintenance tips, you can help keep your Harley running smoothly and avoid issues like the B1335 code.

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