B1668 Honda Code - Rear Shelf LF Antenna Circuit Open
Quick Answer
The remote is equipped with a keyless transmitter, and all doors can be locked and unlocked by a lock/unlock button operation, even from a remote distance from the vehicle. Common causes include Faulty Rear Shelf Low Frequency (LF) Antenna, Rear Shelf Low Frequency (LF) Antenna harness is open or shorted, Rear Shelf Low Frequency (LF) Antenna circuit poor electrical connection. 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
- B1668 Honda indicates Rear Shelf LF Antenna Circuit Open.
- Common causes
- Common causes include Faulty Rear Shelf Low Frequency (LF) Antenna, Rear Shelf Low Frequency (LF) Antenna harness is open or shorted, Rear Shelf Low Frequency (LF) Antenna circuit poor electrical connection.
- 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.
Code B1668 Honda Description
The front interior, the middle interior, and the rear interior Low Frequency (LF) antennas send the signals to the remote of inside the vehicle. The driver's door outer handle, the front passenger's door outer handle, and the rear bumper LF antennas send the signals to the remote of outside the vehicle.
What are the Possible Causes of the DTC B1668 Honda?
- Faulty Rear Shelf Low Frequency (LF) Antenna
- Rear Shelf Low Frequency (LF) Antenna harness is open or shorted
- Rear Shelf Low Frequency (LF) Antenna circuit poor electrical connection
- Faulty Keyless Access Control Unit
How to Fix the DTC B1668 Honda?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1668 Honda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about B1668 Honda Code
1. What are the common symptoms of OBDII code B1668 in a Honda related to the Rear Shelf LF Antenna Circuit Open?
When this code is present, you may experience issues with the keyless entry system, such as the remote key fob not working or the inability to start the vehicle with the push-to-start button.
2. What are some possible causes of the Rear Shelf LF Antenna Circuit Open OBDII code in a Honda?
The code B1668 typically indicates an open circuit in the LF (left front) antenna located on the rear shelf of the vehicle. This could be caused by damaged wiring, a faulty antenna module, or a poor connection.
3. How can I diagnose the Rear Shelf LF Antenna Circuit Open issue in my Honda?
To diagnose this issue, you can start by visually inspecting the wiring leading to the LF antenna. Check for any visible damage or loose connections. You may also use a multimeter to test for continuity in the circuit.
4. Are there any DIY repair tips for fixing the B1668 OBDII code in a Honda?
If you're comfortable working with automotive wiring, you may attempt to repair the open circuit in the LF antenna wiring yourself. However, it's recommended to consult a professional technician for a proper diagnosis and repair.
5. Can the B1668 OBDII code be cleared/reset without fixing the underlying issue in a Honda?
While you can clear the B1668 code using an OBDII scanner, it's important to address the root cause of the problem to prevent further issues with the keyless entry system in your Honda.
6. Is it safe to continue driving my Honda with the Rear Shelf LF Antenna Circuit Open OBDII code present?
While the vehicle may still be operational with this issue, it's best to address it promptly to avoid potential inconveniences or complications with the keyless entry system in the future.
7. How much does it typically cost to repair the Rear Shelf LF Antenna Circuit Open problem in a Honda?
The cost of repair can vary depending on the extent of the damage and whether any components need to be replaced. It's advisable to obtain a few quotes from reputable auto repair shops for an accurate estimate.
8. Can extreme weather conditions cause the B1668 OBDII code to trigger in a Honda?
Extreme weather conditions, such as exposure to moisture or extreme heat, can potentially damage the LF antenna wiring and lead to an open circuit fault triggering the B1668 code.
9. Will disconnecting the car battery reset the B1668 OBDII code in a Honda?
Disconnecting the car battery may temporarily clear the code, but it's likely to reappear if the underlying issue with the LF antenna circuit remains unresolved.
10. How long does it usually take to repair the Rear Shelf LF Antenna Circuit Open issue in a Honda?
The repair time can vary depending on the complexity of the wiring repair or component replacement needed. A professional technician can provide a more accurate estimate based on your specific situation.
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