AutoCodes – Generic – P1723

P1723 Code - Automatic Transmission Control Relay Stuck On

Quick Answer

P1723 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 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 40,185

How popular is this code, among other codes? Medium

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 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1723 Description

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

What does this mean?

What are the Possible Causes of the DTC P1723?

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?

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 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 P1723 code?

Need more information on how to fix the P1723 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1723 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1723 Ford — Gear 3 Incorrect Ratio
P1723 Hyundai — Automatic Transmission Control Relay Stuck On

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 Code

1. What are the common symptoms of OBDII code P1723 (Automatic Transmission Control Relay Stuck On)?

The common symptoms of P1723 may include harsh shifting, transmission slipping, difficulty shifting gears, and the transmission staying in one gear.

2. What can cause the OBDII code P1723 to trigger?

The Automatic Transmission Control Relay Stuck On code (P1723) can be triggered by a faulty transmission control relay, a wiring issue, a malfunctioning transmission control module, or a problem with the transmission itself.

3. How serious is the OBDII code P1723?

P1723 can lead to transmission-related issues and should be addressed promptly to prevent further damage to the transmission components.

4. How can I diagnose the cause of OBDII code P1723?

Diagnosing P1723 typically involves checking the transmission control relay, inspecting the wiring for any issues, testing the transmission control module, and ensuring the transmission is functioning correctly.

5. Can I continue driving my vehicle with OBDII code P1723?

It is not recommended to continue driving your vehicle with P1723, as it can lead to further transmission problems and potential safety hazards.

6. How can I repair OBDII code P1723?

Repairing P1723 may involve replacing the faulty transmission control relay, repairing any wiring issues, resetting the transmission control module, or addressing any underlying transmission problems.

7. Is it possible to reset OBDII code P1723 without repairs?

While you may be able to clear the code temporarily by resetting the vehicle's computer, it is important to address the root cause of P1723 to prevent the issue from recurring.

8. Can a DIY enthusiast fix OBDII code P1723?

Depending on your mechanical skills and access to tools, you may be able to diagnose and repair P1723 yourself. However, dealing with transmission-related issues can be complex, so professional assistance is recommended.

9. How much does it cost to repair OBDII code P1723?

The cost of repairing P1723 can vary depending on the cause of the issue, the extent of the repairs needed, and the labor rates of the repair shop. It is advisable to obtain quotes from automotive professionals.

10. Will OBDII code P1723 cause my vehicle to fail an emissions test?

If left unaddressed, P1723 can affect the performance of your vehicle, potentially leading to emissions test failures. It is best to resolve the issue before undergoing an emissions test.