AutoCodes – Hyundai – P2508 Hyundai

P2508 Hyundai Code - ECM/PCM Power Input Signal High

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: P2508 Hyundai indicates ECM/PCM Power Input Signal High.
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 1,591

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 P2508 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 P2508 Hyundai - ECM/PCM Power Input Signal High - AutoCodes.com — P2508 Hyundai Code - ECM/PCM Power Input Signal High

What does this mean?

What are the Possible Causes of the DTC P2508 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 P2508 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 P2508 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 P2508 Hyundai code?

Need more information on how to fix the P2508 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2508 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 P2508 Hyundai Code

1. What are the common symptoms of OBDII code P2508 in a Hyundai vehicle?

- Common symptoms include the Check Engine Light being illuminated, engine stalling, poor engine performance, and difficulty starting the vehicle.

2. What does the OBDII code P2508 in a Hyundai indicate?

- OBDII code P2508 indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) is detecting a high voltage signal on the power input circuit.

3. What are the possible causes of OBDII code P2508 in a Hyundai?

- Possible causes include a faulty ECM/PCM power input circuit, a short circuit in the power input wiring, a defective ECM/PCM, or a malfunctioning power relay.

4. How can I diagnose OBDII code P2508 in my Hyundai?

- Diagnosis typically involves checking the power input circuit for any shorts or open circuits, testing the power relay, and inspecting the ECM/PCM for any signs of damage or malfunction.

5. Can I still drive my Hyundai with OBDII code P2508 present?

- It is not recommended to drive the vehicle with OBDII code P2508 present, as it can lead to engine stalling, poor performance, and potential safety hazards.

6. How can I repair OBDII code P2508 in my Hyundai?

- Repairing OBDII code P2508 may involve repairing or replacing damaged wiring, replacing the power relay, or replacing the ECM/PCM if it is found to be defective.

7. Is it necessary to reset the OBDII code P2508 after making repairs?

- Yes, it is recommended to clear the code using an OBDII scanner after making repairs to see if the issue has been resolved and to turn off the Check Engine Light.

8. Can a DIY enthusiast fix OBDII code P2508 in a Hyundai?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair OBDII code P2508, but it is recommended to seek professional help for accurate diagnosis and repair.

9. How much does it cost to fix OBDII code P2508 in a Hyundai at a repair shop?

- The cost of fixing OBDII code P2508 can vary depending on the cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

10. Will OBDII code P2508 cause damage to other components if left unrepaired?

- Leaving OBDII code P2508 unrepaired can potentially cause damage to other components, such as the ECM/PCM, due to the high voltage signal affecting the power input circuit.