AutoCodes – Hyundai – C1354 Hyundai

C1354 Hyundai Code - Sensor 4 LFI Open/Short Failure

Quick Answer

The Low-Frequency Initiator (LFI) is located at each vehicle wheel house. Common causes include Faulty Sensor 4 Low Frequency Initiator (LFI), Sensor 4 Low Frequency Initiator (LFI) harness is open or shorted, Sensor 4 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: C1354 Hyundai indicates Sensor 4 LFI Open/Short Failure.
Common causes: Common causes include Faulty Sensor 4 Low Frequency Initiator (LFI), Sensor 4 Low Frequency Initiator (LFI) harness is open or shorted, Sensor 4 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 2,755

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 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1354 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 C1354 Hyundai - Sensor 4 LFI Open/Short Failure - AutoCodes.com — C1354 Hyundai Code - Sensor 4 LFI Open/Short Failure

What does this mean?

What are the Possible Causes of the DTC C1354 Hyundai?

Faulty Sensor 4 Low Frequency Initiator (LFI)
Sensor 4 Low Frequency Initiator (LFI) harness is open or shorted
Sensor 4 Low Frequency Initiator (LFI) circuit poor electrical connection

How to Fix the DTC C1354 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 C1354 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.

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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 C1354 Hyundai Code

1. What are the common symptoms of OBDII code C1354 on a Hyundai related to Sensor 4 LFI Open/Short Failure?

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

2. What can cause the OBDII code C1354 on a Hyundai indicating Sensor 4 LFI Open/Short Failure?

Possible causes include faulty wiring or connections related to the sensor, a damaged sensor itself, or issues with the engine control module.

3. How can I diagnose the Sensor 4 LFI Open/Short Failure related to code C1354 on my Hyundai?

A thorough inspection of the wiring and connections associated with Sensor 4, along with testing the sensor's resistance and voltage, can help diagnose the issue accurately.

4. Is it safe to continue driving my Hyundai with the OBDII code C1354 indicating Sensor 4 LFI Open/Short Failure?

It is not recommended to drive the vehicle for an extended period with this issue, as it can lead to further damage to the engine or emission control system.

5. Can I repair the Sensor 4 LFI Open/Short Failure issue causing OBDII code C1354 on my Hyundai myself?

Depending on your skill level and access to tools, you may be able to repair the issue yourself by replacing the sensor, fixing wiring faults, or addressing connection issues.

6. How much does it typically cost to repair the Sensor 4 LFI Open/Short Failure issue triggering OBDII code C1354 on a Hyundai?

The cost of repairs can vary depending on the extent of the issue and whether you choose to do the repairs yourself or take your vehicle to a professional mechanic. Costs can range from a few hundred to over a thousand dollars.

7. Can resetting the OBDII system clear the code C1354 related to Sensor 4 LFI Open/Short Failure on my Hyundai?

Resetting the system may temporarily clear the code, but if the underlying issue causing the fault is not addressed, the code is likely to return.

8. Are there any preventive measures to avoid the Sensor 4 LFI Open/Short Failure issue leading to OBDII code C1354 on my Hyundai?

Regular vehicle maintenance, including checking and cleaning sensor connections, can help prevent such issues. Additionally, driving smoothly and avoiding harsh acceleration can also help.

9. How urgent is it to address the Sensor 4 LFI Open/Short Failure issue triggering OBDII code C1354 on my Hyundai?

It is recommended to address the issue promptly to prevent further damage to the vehicle and ensure optimal engine performance and fuel efficiency.

10. Can the OBDII code C1354 related to Sensor 4 LFI Open/Short Failure on my Hyundai be a false alarm?

While it is possible for a code to be triggered erroneously, it is essential to investigate the issue thoroughly to rule out any actual problems with the sensor or related components.