AutoCodesHyundai – P1622 Hyundai

P1622 Hyundai Code - A/C Control Relay Circuit Failure

Quick Answer

P1622 Hyundai indicates A/C Control Relay Circuit Failure. Common causes include Faulty A/C Control Relay, A/C Control Relay harness is open or shorted, A/C Control Relay circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1622 Hyundai indicates A/C Control Relay Circuit Failure.
Common causes
Common causes include Faulty A/C Control Relay, A/C Control Relay harness is open or shorted, A/C Control Relay circuit poor electrical connection.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code Popularity 9,866
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 01, 2019
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Code P1622 Hyundai Description

OBDII Code P1622 Hyundai - A/C Control Relay Circuit Failure - AutoCodes.com
P1622 Hyundai Code - A/C Control Relay Circuit Failure

What are the Possible Causes of the DTC P1622 Hyundai?

  • Faulty A/C Control Relay
  • A/C Control Relay harness is open or shorted
  • A/C Control Relay circuit poor electrical connection

How to Fix the DTC P1622 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 P1622 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 P1622 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 P1622 Hyundai Code

1. What does the OBDII code P1622 mean for Hyundai vehicles?

P1622 indicates an A/C control relay circuit failure, meaning the relay that controls the air conditioning system is malfunctioning or has a wiring issue.

2. What are the common symptoms of code P1622 in a Hyundai?

Symptoms may include the A/C not working, intermittent cooling, or the A/C system failing to turn on entirely.

3. What causes the P1622 code to appear in Hyundai vehicles?

Common causes include a faulty A/C control relay, damaged wiring or connectors, or issues with the HVAC control module.

4. How can I diagnose a P1622 code in my Hyundai?

Start by checking the A/C relay for proper operation, inspect wiring and connectors for damage or corrosion, and use a multimeter to test circuit continuity.

5. Can a failing A/C relay cause the P1622 code?

Yes, a failing or stuck A/C relay is one of the most common reasons for this code.

6. Is it safe to drive with the P1622 code in a Hyundai?

Yes, it’s generally safe to drive, but you may experience issues with your air conditioning system not functioning properly.

7. How do I fix the P1622 code on a Hyundai?

Repairs may involve replacing the A/C control relay, repairing damaged wiring, or addressing issues with the HVAC control module.

8. How much does it cost to fix the P1622 code?

Costs can range from $50 to $200 depending on whether you need a new relay, wiring repairs, or further diagnostics.

9. Can a weak battery trigger the P1622 code in a Hyundai?

While uncommon, electrical issues such as a weak battery or poor ground connections could contribute to this code.

10. Do I need special tools to fix the P1622 code?

Basic tools like a multimeter and socket wrench may suffice, but a diagnostic scanner can help confirm the issue more efficiently.

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