AutoCodesHyundai – P1723 Hyundai

P1723 Hyundai Code - Automatic Transmission Control Relay Stuck On

Quick Answer

P1723 Hyundai indicates Automatic Transmission Control Relay Stuck On. Common causes include Faulty Automatic Transmission Control Relay, Automatic Transmission Control Relay harness is open or shorted, Automatic Transmission Control 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
P1723 Hyundai indicates Automatic Transmission Control Relay Stuck On.
Common causes
Common causes include Faulty Automatic Transmission Control Relay, Automatic Transmission Control Relay harness is open or shorted, Automatic Transmission Control 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 40,562
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Sep 12, 2019
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Code P1723 Hyundai Description

OBDII Code P1723 Hyundai - Automatic Transmission Control Relay Stuck On - AutoCodes.com
P1723 Hyundai Code - Automatic Transmission Control Relay Stuck On

What are the Possible Causes of the DTC P1723 Hyundai?

  • Faulty Automatic Transmission Control Relay
  • Automatic Transmission Control Relay harness is open or shorted
  • Automatic Transmission Control Relay circuit poor electrical connection

How to Fix the DTC P1723 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 P1723 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 P1723 Hyundai Code

1. What does the OBDII code P1723 mean on a Hyundai?

P1723 indicates that the Automatic Transmission Control Relay is stuck in the "On" position, which can affect the transmission's functionality.

2. What are the common symptoms of a P1723 code in a Hyundai?

Symptoms may include the Check Engine Light being illuminated, erratic shifting, transmission stuck in limp mode, or poor vehicle performance.

3. What causes the P1723 code to appear?

Possible causes include a faulty transmission control relay, damaged wiring or connectors, a malfunctioning transmission control module (TCM), or electrical system issues.

4. Can I drive my Hyundai with a P1723 code?

Driving with a P1723 code is not recommended, as it may lead to further transmission damage or unsafe driving conditions due to shifting issues.

5. How do I diagnose a P1723 code in my Hyundai?

Diagnosis involves checking the transmission control relay, inspecting wiring and connectors for damage, and testing the TCM for faults using a scan tool.

6. How do I fix the P1723 code on a Hyundai?

Repairs may include replacing the faulty transmission control relay, repairing damaged wiring, cleaning connectors, or reprogramming or replacing the TCM if necessary.

7. What tools are needed to troubleshoot a P1723 code?

You’ll need an OBDII scanner, a multimeter for electrical testing, and potentially wiring diagrams for your specific Hyundai model.

8. How much does it cost to repair a P1723 code on a Hyundai?

Repair costs vary but can range from $50 to $150 for a replacement relay, while TCM repairs or replacements may cost $500 or more, depending on labor and parts.

9. Can a dead battery cause the P1723 code?

A weak or dead battery can lead to electrical issues, but it’s unlikely to be the sole cause of a P1723 code. The relay or wiring should still be inspected.

10. Is the P1723 code specific to Hyundai vehicles?

While P1723 is most commonly associated with Hyundai vehicles, its meaning may vary slightly in other manufacturers. Always consult a Hyundai-specific repair guide for accuracy.

Discuss the causes and fixes for P1723 Hyundai OBDII Code

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