AutoCodes – Dodge – P2505 Dodge

P2505 Dodge 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 Dodge 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 6,668

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

What does this mean?

What are the Possible Causes of the DTC P2505 Dodge?

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 Dodge?

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 Dodge 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.

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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 Dodge Code

1. What does the OBDII code P2505 mean on a Dodge?

The P2505 code indicates an "ECM/PCM Power Input Signal" issue, meaning the engine control module (ECM) or powertrain control module (PCM) is not receiving the correct power input.

2. What are the common symptoms of code P2505 on a Dodge?

Symptoms may include difficulty starting the engine, stalling, poor fuel efficiency, lack of power, or the check engine light illuminating.

3. What causes the P2505 code to appear on a Dodge?

Common causes include a weak or failing battery, loose or corroded battery terminals, damaged wiring, a faulty ECM/PCM, or a defective ignition switch.

4. Can a bad alternator cause the P2505 code on a Dodge?

Yes, a failing alternator can cause inconsistent power delivery to the ECM/PCM, triggering the P2505 code.

5. How do I diagnose the P2505 code on my Dodge?

Start by checking the battery voltage, inspecting battery terminals for corrosion, and ensuring all electrical connections to the ECM/PCM are secure. Use a multimeter to test wiring and power continuity if necessary.

6. Can I drive my Dodge with the P2505 code active?

It is not recommended to drive with the P2505 code active, as it may lead to stalling or other performance issues that could be unsafe.

7. How can I fix the P2505 code on a Dodge?

Repairs may include replacing a weak battery, cleaning or tightening battery terminals, repairing damaged wiring, or replacing a faulty ECM/PCM.

8. How much does it cost to fix code P2505 on a Dodge?

The cost depends on the cause. Cleaning terminals or replacing a battery can cost $50â€“$200, while ECM/PCM replacement can exceed $500.

9. Can a software update fix the P2505 code on a Dodge?

In rare cases, a software update may resolve the issue if the ECM/PCM is functioning but has a programming glitch. Consult a dealership or qualified mechanic.

10. How can I prevent the P2505 code from recurring on my Dodge?

Regularly inspect and maintain the battery, keep terminals clean, and ensure all electrical connections are secure and free from corrosion.