AutoCodes – Hyundai – P0890 Hyundai

P0890 Hyundai Code - Automatic Transmission Relay Circuit Low

Quick Answer

The automatic transmission supplies power to the solenoid valves by way of a control relay. Common causes include Faulty Automatic Transmission Relay, Automatic Transmission Relay harness is open or shorted, Automatic Transmission 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: P0890 Hyundai indicates Automatic Transmission Relay Circuit Low.
Common causes: Common causes include Faulty Automatic Transmission Relay, Automatic Transmission Relay harness is open or shorted, Automatic Transmission 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 1,623

How popular is this code, among other codes? Low

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 Dec 23, 2021

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 P0890 Hyundai Description

The automatic transmission supplies power to the solenoid valves by way of a control relay. When the Powertrain Control Module (PCM) sets the relay to ON, the relay operates, and the battery power is supplied to all the solenoid valves. When the PCM sets the relay to OFF, all solenoid valve power is shut off and the transmission is held in the 3rd gear position. (Fail Safe Mode). The PCM checks the A/T control relay signal by monitoring the control signal. If the voltage applied to A/T solenoids is lower than 0.5V, the PCM sets this Diagnostic Trouble Code (DTC).

OBDII Code P0890 Hyundai - Automatic Transmission Relay Circuit Low - AutoCodes.com — P0890 Hyundai Code - Automatic Transmission Relay Circuit Low

What does this mean?

What are the Possible Causes of the DTC P0890 Hyundai?

Faulty Automatic Transmission Relay
Automatic Transmission Relay harness is open or shorted
Automatic Transmission Relay circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P0890 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 P0890 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 P0890 Hyundai code?

Need more information on how to fix the P0890 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0890 Hyundai code diagnosed by a professional: Find a repair shop in your area

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 P0890 Hyundai Code

1. What are the common symptoms of OBDII code P0890 in a Hyundai related to the Automatic Transmission Relay Circuit Low?

- Common symptoms include issues with shifting gears, transmission slipping, and the vehicle not engaging properly when starting.

2. What are the possible causes of the OBDII code P0890 in a Hyundai?

- The code P0890 can be caused by a faulty automatic transmission relay, damaged wiring or connectors in the transmission relay circuit, or a malfunctioning transmission control module.

3. How can I diagnose the OBDII code P0890 in my Hyundai?

- To diagnose the code P0890, you can use an OBDII scanner to retrieve the trouble code and then inspect the automatic transmission relay and its circuit for any visible damage or issues.

4. Can a DIY enthusiast repair the OBDII code P0890 in a Hyundai?

- While some skilled DIY enthusiasts may be able to diagnose and repair the issue related to the Automatic Transmission Relay Circuit Low, it is recommended to seek professional help, especially when dealing with transmission-related problems.

5. What are some repair tips for fixing the OBDII code P0890 in a Hyundai?

- Repair tips include checking the automatic transmission relay for proper functioning, inspecting the wiring and connectors for any damage, and ensuring that the transmission control module is working correctly.

6. Is it safe to continue driving my Hyundai with the OBDII code P0890 present?

- It is not recommended to continue driving your Hyundai with the OBDII code P0890 present, as it can lead to further transmission issues and potentially cause more damage to the vehicle.

7. How much does it typically cost to repair the OBDII code P0890 in a Hyundai?

- The cost of repairing the OBDII code P0890 in a Hyundai can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can the OBDII code P0890 in a Hyundai be triggered by other underlying problems?

- Yes, the OBDII code P0890 in a Hyundai can sometimes be triggered by other underlying issues, such as electrical problems, transmission fluid leaks, or internal transmission damage.

9. Are there any preventative measures to avoid encountering the OBDII code P0890 in a Hyundai?

- Regular maintenance of the transmission system, including checking fluid levels, addressing any leaks promptly, and ensuring all electrical components are in good condition, can help prevent issues like the OBDII code P0890 from occurring.

10. How long does it typically take to repair the OBDII code P0890 in a Hyundai?

- The repair time for the OBDII code P0890 in a Hyundai can vary depending on the exact cause of the issue and the complexity of the repair needed, but it may take several hours to a full day for a professional technician to diagnose and fix the problem.