P1674 Hyundai Code - A/C Fan Relay Malfunction
Quick Answer
P1674 Hyundai indicates A/C Fan Relay Malfunction. Common causes include Faulty A/C Fan Relay, A/C Fan Relay harness is open or shorted, A/C 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
- P1674 Hyundai indicates A/C Fan Relay Malfunction.
- Common causes
- Common causes include Faulty A/C Fan Relay, A/C Fan Relay harness is open or shorted, A/C 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.
Code P1674 Hyundai Description
What are the Possible Causes of the DTC P1674 Hyundai?
- Faulty A/C Fan Relay
- A/C Fan Relay harness is open or shorted
- A/C Fan Relay circuit poor electrical connection
How to Fix the DTC P1674 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 P1674 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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Frequently Asked Questions about P1674 Hyundai Code
1. What does the OBDII code P1674 mean on a Hyundai?
The P1674 code indicates an A/C Fan Relay Malfunction, meaning the relay controlling the air conditioning fan is not operating as expected.
2. What are the common symptoms of the P1674 code on a Hyundai?
Symptoms may include the A/C fan not working, poor air conditioning performance, overheating during A/C operation, or the Check Engine Light being illuminated.
3. What causes the P1674 code to appear on a Hyundai?
Common causes include a faulty A/C fan relay, damaged wiring or connectors, a blown fuse, or issues with the ECM not properly signaling the relay.
4. Can I still drive my Hyundai with the P1674 code present?
While you may be able to drive, ignoring the code can lead to overheating or reduced air conditioning performance, especially in hot weather.
5. How do I diagnose the P1674 code on a Hyundai?
Diagnose by checking the A/C fan relay, inspecting related wiring and connectors, verifying fuse integrity, and confirming ECM operation.
6. How can I fix the P1674 code on my Hyundai?
Repair options include replacing the faulty relay, repairing or replacing damaged wiring, or addressing ECM issues if the relay and wiring are functioning properly.
7. How much does it cost to repair the P1674 code on a Hyundai?
Repair costs vary, but replacing the A/C fan relay typically costs between $20 and $50 for parts, plus labor if done at a shop.
8. Can a bad A/C fan relay cause my Hyundai to overheat?
Yes, if the A/C fan relay fails, the cooling system may struggle during A/C operation, potentially causing the engine to overheat.
9. Will clearing the P1674 code solve the problem in my Hyundai?
Clearing the code without addressing the underlying issue will only temporarily remove the error; the code will return if the malfunction persists.
10. Is the P1674 code specific to Hyundai vehicles?
While P1674 may appear in other vehicles, its definition as an A/C Fan Relay Malfunction is specific to Hyundai models.
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