Engine-CodesAcura – B1663 Acura

B1663 Acura Code - Rear Interior LF Antenna Circuit Short

Quick Answer

The B1663 code for Acura vehicles indicates a problem with the rear interior LF (left front) antenna circuit, specifically a short circuit. Common causes include Damaged wiring in the LF antenna circuit, Faulty LF antenna module, Water damage to the antenna or wiring. 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
B1663 Acura indicates Rear Interior LF Antenna Circuit Short.
Common causes
Common causes include Damaged wiring in the LF antenna circuit, Faulty LF antenna module, Water damage to the antenna or wiring.
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 B1663 Acura Description

The B1663 code for Acura vehicles indicates a problem with the rear interior LF (left front) antenna circuit, specifically a short circuit. The LF antenna is a crucial component of the vehicle's keyless entry system, responsible for receiving signals from the key fob to lock or unlock the doors. A short circuit in this circuit can disrupt the communication between the key fob and the vehicle, leading to issues with the keyless entry system.

OBDII Code B1663 Acura - Rear Interior LF Antenna Circuit Short
B1663 Acura Code - Rear Interior LF Antenna Circuit Short

Common Causes of B1663 Acura

  1. Damaged wiring in the LF antenna circuit
  2. Faulty LF antenna module
  3. Water damage to the antenna or wiring
  4. Short circuit in the electrical system

Symptoms of B1663 Acura

  1. Keyless entry system not working properly
  2. Inability to lock or unlock doors remotely
  3. Vehicle not starting due to immobilizer system failure
  4. Warning light on the dashboard related to the keyless entry system

How to Fix B1663 Acura

  1. Diagnose the issue by using a multimeter to test the LF antenna circuit for continuity and shorts.
  2. Inspect the wiring and antenna module for any visible damage or signs of water intrusion.
  3. Replace any damaged wiring or the faulty LF antenna module.
  4. Clear the diagnostic trouble codes and test the keyless entry system to ensure proper functionality.
  5. If the issue persists, further diagnosis may be needed to identify any underlying electrical problems.

Cost to Fix B1663 Acura

The cost of repairing a rear interior LF antenna circuit short can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the parts for this repair, such as a new LF antenna module or wiring, can range from $100 to $300. Labor costs at an auto repair shop can add an additional $100 to $200 to the total repair bill. Overall, the total cost for addressing this issue may range from $200 to $500. It's important to note that these are rough estimates, and actual costs may vary based on the factors mentioned earlier.

Need more information about the B1663 Acura code?

Need more information on how to fix the B1663 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1663 Acura 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 B1663 Acura Code

1. What are the common symptoms of OBDII code B1663 Acura (Rear Interior LF Antenna Circuit Short)?

The common symptoms include issues with the keyless entry system, difficulty starting the vehicle, and intermittent problems with the remote key fob.

2. What are the possible causes of the OBDII code B1663 Acura?

Possible causes of this code include a faulty LF antenna, damaged wiring or connectors in the antenna circuit, or a malfunctioning keyless entry receiver.

3. How can I diagnose the OBDII code B1663 Acura?

Diagnosing this code involves using a scan tool to retrieve the code, inspecting the LF antenna and its wiring for any visible damage, and testing the keyless entry system for proper functionality.

4. Can I still drive my Acura with the OBDII code B1663 present?

While technically possible to drive with this code, it is not recommended as it may lead to further electrical issues or difficulties with starting the vehicle.

5. How can I repair the OBDII code B1663 Acura?

Repairing this code typically involves replacing the faulty LF antenna, repairing any damaged wiring or connectors, or replacing the keyless entry receiver if necessary.

6. Is it safe to clear the OBDII code B1663 Acura without fixing the underlying issue?

It is not recommended to clear the code without addressing the root cause, as the problem may persist and potentially lead to more serious electrical issues in the future.

7. Can weather conditions affect the appearance of the OBDII code B1663 Acura?

Extreme weather conditions, especially moisture or humidity, can exacerbate issues related to the LF antenna circuit short, leading to intermittent problems with the keyless entry system.

8. How much does it cost to repair the OBDII code B1663 Acura at a dealership or repair shop?

The cost of repair can vary depending on the specific issue and labor rates in your area, but it typically ranges from $100 to $300 for parts and labor.

9. Are there any preventive measures I can take to avoid the OBDII code B1663 Acura in the future?

Regularly inspecting the LF antenna and its wiring for damage, keeping the keyless entry system clean and dry, and addressing any issues promptly can help prevent the recurrence of this code.

10. Can I fix the OBDII code B1663 Acura myself, or should I take it to a professional?

While some DIY enthusiasts may be able to address this code themselves, it is recommended to seek professional assistance, especially if you are not familiar with automotive electrical systems.

Discuss the causes and fixes for B1663 Acura OBDII Code

Code B1663 Acura comments

No comments found for this page.