B1668 Acura 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 Acura 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 Acura 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 Acura?
- 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 Acura?
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 Acura 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 Acura Code
1. What does OBDII code B1668 mean on an Acura?
B1668 indicates an open circuit in the Rear Shelf Left Front (LF) Antenna Circuit, which is part of the keyless entry or immobilizer system.
2. What are the common symptoms of code B1668 on an Acura?
Symptoms may include issues with the keyless entry system, difficulty starting the vehicle, or the key fob not being detected properly.
3. What causes the B1668 code to appear on an Acura?
The most common causes include a damaged antenna, a broken or corroded wire, a loose connection, or a faulty control module.
4. Can I still drive my Acura with a B1668 code?
Yes, the vehicle may still be drivable, but you could experience intermittent issues with the keyless entry or starting system.
5. How is the B1668 code diagnosed on an Acura?
A technician will inspect the antenna, wiring, and connectors for damage or corrosion, and may use a multimeter to check for continuity in the circuit.
6. How do I fix the B1668 code on my Acura?
Repairs may involve replacing the faulty antenna, repairing damaged wiring, cleaning corroded connections, or updating/reprogramming the control module if necessary.
7. How much does it cost to repair the B1668 code on an Acura?
Repair costs vary depending on the root cause but typically range from $50 for minor wiring fixes to $300 or more if the antenna or control module needs replacement.
8. Can a dead key fob battery cause the B1668 code?
No, a dead key fob battery will not trigger this code but may cause similar symptoms, such as difficulty starting the vehicle.
9. Will clearing the B1668 code fix the problem?
Clearing the code may temporarily turn off the warning light, but the underlying issue must be addressed to prevent the code from returning.
10. Is the B1668 code specific to Acura vehicles?
While the code itself may appear on other vehicles, the specific description and troubleshooting steps for B1668 apply to Acura models.
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