AutoCodes – Hyundai – P2505 Hyundai

P2505 Hyundai Code - ECM/PCM Power Input Signal

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: P2505 Hyundai indicates ECM/PCM Power Input Signal.
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 2,057

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 P2505 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 P2505 Hyundai - ECM/PCM Power Input Signal - AutoCodes.com — P2505 Hyundai Code - ECM/PCM Power Input Signal

What does this mean?

What are the Possible Causes of the DTC P2505 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 P2505 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 P2505 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 P2505 Hyundai code?

Need more information on how to fix the P2505 Hyundai code? Get Access to Factory Service Manuals

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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 P2505 Hyundai Code

1. What does OBDII code P2505 Hyundai ECM/PCM Power Input Signal mean?

- This code indicates a problem with the power input signal to the Engine Control Module (ECM) or Powertrain Control Module (PCM).

2. What are the common symptoms of OBDII code P2505 in a Hyundai?

- Common symptoms include stalling, rough idling, engine misfires, poor acceleration, and in some cases, the vehicle may not start.

3. What are the possible causes of OBDII code P2505 in a Hyundai?

- The code P2505 can be triggered by issues such as a faulty ECM/PCM power input circuit, a blown fuse, damaged wiring, or a defective ECM/PCM.

4. How do I diagnose the OBDII code P2505 in my Hyundai?

- Diagnosing this code involves checking the power input circuit for continuity, inspecting the fuses and wiring for damage, and testing the ECM/PCM for proper function.

5. Can I drive my Hyundai with OBDII code P2505 present?

- It is not recommended to drive your Hyundai with code P2505 present, as it can lead to further damage or safety hazards. It's best to address the issue promptly.

6. How do I repair OBDII code P2505 in my Hyundai?

- Repairing this code typically involves fixing any damaged wiring, replacing blown fuses, or replacing the ECM/PCM if necessary. It's recommended to consult a professional mechanic for accurate diagnosis and repair.

7. Can a DIY enthusiast fix OBDII code P2505 in a Hyundai?

- Depending on your skill level and access to tools, some DIY enthusiasts may be able to address simple causes of P2505, such as blown fuses or loose connections. However, complex issues may require professional assistance.

8. How much does it cost to repair OBDII code P2505 in a Hyundai?

- The cost of repairing code P2505 can vary depending on the root cause of the issue, the parts needed for repair, and labor costs. It's advisable to obtain quotes from trusted mechanics or service centers.

9. Is it common for OBDII code P2505 to recur in a Hyundai?

- If the underlying issue causing code P2505 is not properly addressed during repair, there is a risk of the code recurring. Thorough diagnosis and repair are essential to prevent its recurrence.

10. Can OBDII code P2505 in a Hyundai be a sign of a more serious problem?

- While code P2505 itself typically points to a power input signal issue, ignoring or neglecting this code could lead to more significant problems with the ECM/PCM or other engine components. Prompt attention is advisable.