AutoCodes – Hyundai – C1343 Hyundai

C1343 Hyundai Code - Sensor 3 LFI Channel Failure

Quick Answer

The Low-Frequency Initiator (LFI) is located at each vehicle wheel house. Common causes include Faulty Sensor 3 Low Frequency Initiator (LFI), Sensor 3 Low Frequency Initiator (LFI) harness is open or shorted, Sensor 3 Low Frequency Initiator (LFI) 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: C1343 Hyundai indicates Sensor 3 LFI Channel Failure.
Common causes: Common causes include Faulty Sensor 3 Low Frequency Initiator (LFI), Sensor 3 Low Frequency Initiator (LFI) harness is open or shorted, Sensor 3 Low Frequency Initiator (LFI) 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.

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Code Popularity 2,161

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 07, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1343 Hyundai Description

The Low-Frequency Initiator (LFI) is located at each vehicle wheel house. An LFI unit is mounted in each wheel well of a vehicle to enable the TPMS Receiver Unit to determine the vehicle position of each WE for which it has a stored ID code. Using a LIN communication line to each LFI, the Receiver can activate an LFI to send out an LF message and trigger the WE sensor near its location to respond with an RF transmission. By activating the LFI units one at a time, the Receiver can automatically locate the vehicle position of each WE. For fault detection, the LFI will report back it's operating properly status to the Receiver via the LIN communication line.

OBDII Code C1343 Hyundai - Sensor 3 LFI Channel Failure - AutoCodes.com — C1343 Hyundai Code - Sensor 3 LFI Channel Failure

What does this mean?

What are the Possible Causes of the DTC C1343 Hyundai?

Faulty Sensor 3 Low Frequency Initiator (LFI)
Sensor 3 Low Frequency Initiator (LFI) harness is open or shorted
Sensor 3 Low Frequency Initiator (LFI) circuit poor electrical connection

How to Fix the DTC C1343 Hyundai?

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 C1343 Hyundai 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.

Need more information about the C1343 Hyundai code?

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Need Help with the Code?

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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 C1343 Hyundai Code

1. What are the common symptoms of OBDII code C1343 Hyundai (Sensor 3 LFI Channel Failure)?

The common symptoms include rough idling, decreased engine performance, and illumination of the check engine light.

2. What are the possible causes of OBDII code C1343 Hyundai (Sensor 3 LFI Channel Failure)?

Possible causes may include a faulty sensor, wiring issues, or problems with the engine control module (ECM).

3. How can I diagnose OBDII code C1343 in my Hyundai?

Diagnosis typically involves using an OBDII scanner to read the code, inspecting the sensor and wiring for damage, and testing the ECM for proper functionality.

4. Can I continue driving my Hyundai with OBDII code C1343?

It is not recommended to drive your Hyundai with this code as it can lead to further engine issues and potential safety hazards.

5. How can I repair OBDII code C1343 in my Hyundai?

Repairing this code may involve replacing the faulty sensor, repairing damaged wiring, or reprogramming the ECM. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. Is it possible to reset OBDII code C1343 in my Hyundai without repairing it?

Resetting the code without addressing the underlying issue may temporarily turn off the check engine light, but the problem will likely reoccur. It is best to repair the root cause of the code.

7. How much does it cost to repair OBDII code C1343 in a Hyundai?

The cost of repair can vary depending on the specific issue causing the code, the model of Hyundai, and labor rates in your area. It is advisable to obtain quotes from multiple mechanics for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code C1343 in a Hyundai?

While some basic troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing this code may require specialized tools and expertise. It is recommended to seek help from a professional mechanic.

9. How long does it take to repair OBDII code C1343 in a Hyundai?

The repair time can vary depending on the exact cause of the code and the availability of parts. It is best to consult with a mechanic for a more accurate timeframe.

10. Are there any preventive measures to avoid OBDII code C1343 in a Hyundai?

Regular maintenance, such as timely sensor inspections and engine checks, can help prevent issues that may trigger this code. Additionally, using quality fuel and following the manufacturer's recommended service schedule can aid in preventing such problems.