AutoCodes – Hyundai – P1673 Hyundai

P1673 Hyundai Code - Fan Relay Malfunction High Speed

Quick Answer

P1673 Hyundai indicates Fan Relay Malfunction High Speed. Common causes include Faulty cooling fan relay, Cooling fan relay harness is open or shorted, Cooling fan relay 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: P1673 Hyundai indicates Fan Relay Malfunction High Speed.
Common causes: Common causes include Faulty cooling fan relay, Cooling fan relay harness is open or shorted, Cooling fan relay 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 3,743

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1673 Hyundai Description

OBDII Code P1673 Hyundai - Fan Relay Malfunction High Speed - AutoCodes.com — P1673 Hyundai Code - Fan Relay Malfunction High Speed

What does this mean?

What are the Possible Causes of the DTC P1673 Hyundai?

Faulty cooling fan relay
Cooling fan relay harness is open or shorted
Cooling fan relay circuit poor electrical connection

How to Fix the DTC P1673 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 P1673 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 P1673 Hyundai 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 P1673 Hyundai Code

1. What does the OBDII code P1673 mean for a Hyundai?

P1673 indicates a "Fan Relay Malfunction High Speed," meaning the high-speed cooling fan circuit is malfunctioning, often due to an issue with the fan relay or its wiring.

2. What are the common symptoms of code P1673 in a Hyundai?

Symptoms include an illuminated Check Engine Light, engine overheating, cooling fans not activating at high speed, or fans running continuously.

3. What causes the P1673 code to appear?

Common causes include a faulty cooling fan relay, damaged wiring or connectors in the cooling fan circuit, a malfunctioning cooling fan motor, or an issue with the engine control module (ECM).

4. Can I drive my Hyundai with the P1673 code active?

Itâ€™s not recommended to drive with this code active, as an inoperative cooling fan at high speed can lead to engine overheating and potential engine damage.

5. How do I diagnose the P1673 code on my Hyundai?

Diagnosis involves checking the cooling fan relay, inspecting the wiring and connectors for damage or corrosion, testing the cooling fan motor, and verifying ECM operation.

6. How do I fix the P1673 code on a Hyundai?

Repairs may include replacing a faulty fan relay, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the cooling fan motor if necessary.

7. How much does it cost to fix the P1673 code on a Hyundai?

Repair costs can range from $50 to $300, depending on whether the issue is with the fan relay, wiring, or cooling fan motor. ECM-related repairs may cost more.

8. Can a bad cooling fan motor trigger the P1673 code?

Yes, a malfunctioning cooling fan motor can cause the P1673 code if it fails to operate at high speed as required.

9. Will clearing the P1673 code fix the problem?

Clearing the code may turn off the Check Engine Light temporarily, but the underlying issue must be resolved, or the code will likely return.

10. Is the P1673 code specific to Hyundai vehicles?

While the P1673 code is commonly associated with Hyundai models, similar codes and issues can occur in other makes and models with a cooling fan circuit malfunction.