Engine-CodesHonda – B1647 Honda

B1647 Honda Code - Passenger Door LF Antenna Circuit Short

Quick Answer

The B1647 Honda code indicates a problem with the Passenger Door LF Antenna Circuit Short in the vehicle. Common causes include Damaged wiring in the Passenger Door LF Antenna Circuit, Faulty antenna module, Malfunctioning key fob. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B1647 Honda indicates Passenger Door LF Antenna Circuit Short.
Common causes
Common causes include Damaged wiring in the Passenger Door LF Antenna Circuit, Faulty antenna module, Malfunctioning key fob.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 14, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1647 Honda Description

The B1647 Honda code indicates a problem with the Passenger Door LF Antenna Circuit Short in the vehicle. This circuit is responsible for communication between the vehicle's key fob and the door lock system. When this circuit is shorted, it can lead to issues with the door lock system, potentially preventing the door from locking or unlocking properly. This can pose a security risk as well as inconvenience to the driver and passengers.

OBDII Code B1647 Honda - Passenger Door LF Antenna Circuit Short
B1647 Honda Code - Passenger Door LF Antenna Circuit Short

Common Causes of B1647 Honda

  1. Damaged wiring in the Passenger Door LF Antenna Circuit.
  2. Faulty antenna module.
  3. Malfunctioning key fob.
  4. Problem with the door lock actuator.
  5. Corrosion or loose connections in the circuit.

Symptoms of B1647 Honda

  1. Inability to lock or unlock the passenger door using the key fob.
  2. Intermittent issues with the door lock system.
  3. Alarm system triggering unexpectedly.
  4. Malfunction indicator light (MIL) illuminated on the dashboard.

How to Fix B1647 Honda

  1. Begin by conducting a thorough inspection of the wiring and components in the Passenger Door LF Antenna Circuit to identify any visible damage or faults.
  2. Test the antenna module and key fob to determine if they are functioning properly.
  3. Check the door lock actuator for any issues that may be affecting its operation.
  4. Repair or replace any damaged wiring, faulty components, or malfunctioning parts in the circuit.
  5. Clear the diagnostic trouble codes from the vehicle's system and test the door lock system to ensure proper functionality.

Cost to Fix B1647 Honda

The typical repair costs for addressing a Passenger Door LF Antenna Circuit Short can vary depending on the extent of the damage and the specific components that need to be repaired or replaced. In general, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $150 to $300. Overall, the total repair cost for this issue is estimated to be between $250 and $600. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the specific diagnosis and repair process required. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on your individual circumstances.

Need more information about the B1647 Honda code?

Need more information on how to fix the B1647 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1647 Honda code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1647 Honda Code

1. What are common symptoms of OBDII code B1647 Honda related to the Passenger Door LF Antenna Circuit Short?

The common symptoms include issues with the keyless entry system, difficulty locking or unlocking the passenger door, and a malfunctioning alarm system.

2. What are the possible causes of OBDII code B1647 Honda for the Passenger Door LF Antenna Circuit Short?

The code can be triggered by a short circuit in the antenna wiring, damaged antenna components, water damage to the antenna system, or a faulty control module.

3. How can I diagnose the Passenger Door LF Antenna Circuit Short issue related to OBDII code B1647 Honda?

To diagnose the problem, you can use a diagnostic scanner to read the code, visually inspect the antenna wiring and components for damage, check for water intrusion, and test the control module for functionality.

4. Can I repair the Passenger Door LF Antenna Circuit Short issue myself?

Depending on your skill level, you may be able to repair the issue yourself by fixing any damaged wiring, replacing faulty components, or drying out any water-damaged parts. However, professional help may be needed for more complex repairs.

5. Are there any temporary fixes for OBDII code B1647 Honda until I can get it repaired?

You may try disconnecting the battery for a few minutes to reset the system and see if the code clears. However, this is just a temporary solution and the underlying issue should still be addressed.

6. How do I prevent OBDII code B1647 Honda from occurring again in the future?

To prevent the code from reoccurring, ensure that the antenna system components are properly sealed to prevent water damage, regularly inspect the wiring for wear and tear, and address any issues promptly to avoid further damage.

7. Can OBDII code B1647 Honda affect the overall performance of my Honda vehicle?

While the code itself may not directly impact the performance of the vehicle, it can cause inconvenience by affecting keyless entry functionality, door locking systems, and alarm operation.

8. Is it safe to continue driving with OBDII code B1647 Honda triggered for the Passenger Door LF Antenna Circuit Short?

It is generally safe to drive with this code triggered, but you may experience issues with the keyless entry system and door locking mechanisms. It is recommended to get the issue resolved as soon as possible.

9. How much can I expect to pay to repair OBDII code B1647 Honda for the Passenger Door LF Antenna Circuit Short?

The cost of repair can vary depending on the extent of the damage and the specific components that need to be replaced. It is advised to consult a professional for an accurate estimate.

10. Will resetting the OBDII code B1647 Honda clear the underlying issue with the Passenger Door LF Antenna Circuit Short?

Resetting the code may temporarily clear the warning, but it will not fix the underlying problem causing the code to trigger. It is important to diagnose and repair the issue to prevent the code from coming back.

Discuss the causes and fixes for B1647 Honda OBDII Code

Code B1647 Honda comments

No comments found for this page.