AutoCodes – Hyundai – P2506 Hyundai

P2506 Hyundai Code - ECM/PCM Power Input Signal Range/Performance

Quick Answer

When the ignition switch is turned "ON", the battery voltage is applied from the battery to the Powertrain Control Module (PCM)/Engine Control Module (ECM) through the main relay. Common causes include Low battery voltage, Faulty Powertrain Control Module (PCM)/Engine Control Module (ECM), ECM/PCM harness is open or shorted. 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: P2506 Hyundai indicates ECM/PCM Power Input Signal Range/Performance.
Common causes: Common causes include Low battery voltage, Faulty Powertrain Control Module (PCM)/Engine Control Module (ECM), ECM/PCM harness is open or shorted.
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.

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Code Popularity 1,947

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 Jan 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2506 Hyundai Description

When the ignition switch is turned "ON", the battery voltage is applied from the battery to the Powertrain Control Module (PCM)/Engine Control Module (ECM) through the main relay. In case that the ignition switch is turned "OFF", the ECM/PCM is supplied with power through the battery power input line to control the basic operation of the vehicle. The ECM/PCM set the OBDII code when the ECM/PCM Power Input is out of factory specifications.

OBDII Code P2506 Hyundai - ECM/PCM Power Input Signal Range/Performance - AutoCodes.com — P2506 Hyundai Code - ECM/PCM Power Input Signal Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2506 Hyundai?

Low battery voltage
Faulty Powertrain Control Module (PCM)/Engine Control Module (ECM)
ECM/PCM harness is open or shorted
ECM/PCM circuit poor electrical connection

How to Fix the DTC P2506 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 P2506 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 P2506 Hyundai code?

Need more information on how to fix the P2506 Hyundai code? Get Access to Factory Service Manuals

Need Help with the 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 P2506 Hyundai Code

1. What are the common symptoms of OBDII code P2506 in a Hyundai?

- Common symptoms include the check engine light being illuminated, reduced engine performance, stalling, or difficulty starting the vehicle.

2. What does OBDII code P2506 in a Hyundai indicate?

- OBDII code P2506 indicates a problem with the ECM/PCM power input signal range or performance in the vehicle.

3. What are the possible causes of OBDII code P2506 in a Hyundai?

- Possible causes include a faulty ECM/PCM power relay, wiring issues, a defective ECM/PCM, or a weak battery or charging system.

4. How can I diagnose the cause of OBDII code P2506 in my Hyundai?

- Diagnosis typically involves checking the power input signal to the ECM/PCM, testing the power relay, inspecting the wiring for damage, and ensuring the battery and charging system are functioning properly.

5. Can I drive my Hyundai with OBDII code P2506?

- It is not recommended to drive the vehicle with OBDII code P2506, as it can lead to further damage and potential safety issues. It is best to address the issue promptly.

6. How can I repair OBDII code P2506 in my Hyundai?

- Repairing OBDII code P2506 may involve replacing a faulty ECM/PCM power relay, repairing damaged wiring, replacing the ECM/PCM, or addressing any battery or charging system issues.

7. Will resetting the check engine light resolve OBDII code P2506 in my Hyundai?

- Simply resetting the check engine light will not fix the underlying issue causing OBDII code P2506. It is essential to diagnose and repair the root cause of the problem.

8. Is OBDII code P2506 a common issue in Hyundai vehicles?

- While OBDII code P2506 is not as common as some other codes, it can still occur in Hyundai vehicles due to various factors affecting the ECM/PCM power input signal.

9. Can a DIY enthusiast fix OBDII code P2506 in a Hyundai?

- Depending on their skill level and access to tools, a knowledgeable DIY enthusiast may be able to diagnose and repair OBDII code P2506 in a Hyundai, especially if the issue is related to wiring or a faulty relay.

10. How can I prevent OBDII code P2506 from occurring in my Hyundai?

- Regular maintenance, such as checking the battery and charging system, inspecting wiring for damage, and addressing any ECM/PCM issues promptly, can help prevent OBDII code P2506 from occurring in your Hyundai.