AutoCodes – Dodge – P2508 Dodge

P2508 Dodge 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 Dodge 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 5,623
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 16, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

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

What are the Possible Causes of the DTC P2508 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 P2508 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 P2508 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.

Need more information about the P2508 Dodge code?

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

Need Help with the Code?

Get the P2508 Dodge 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 Dodge Code

1. What does the OBDII code P2508 mean for a Dodge vehicle?

P2508 indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected an abnormally high power input signal, suggesting potential issues with the vehicle's electrical system.

2. What are the common symptoms of code P2508 in a Dodge?

Symptoms may include difficulty starting the engine, poor engine performance, erratic idle, stalling, reduced fuel efficiency, and the illumination of the check engine light.

3. What causes the P2508 code to appear in a Dodge?

Common causes include a weak or failing battery, loose or corroded battery terminals, faulty ECM/PCM, damaged wiring or connectors, or issues with the alternator or charging system.

4. Can a weak battery trigger the P2508 code in a Dodge?

Yes, a weak or failing battery can cause voltage irregularities that may trigger the P2508 code.

5. How do I diagnose the P2508 code in a Dodge vehicle?

Start by checking the battery's condition and voltage, inspecting battery terminals for corrosion, and examining the wiring and connectors to the ECM/PCM for damage or loose connections.

6. Can I still drive my Dodge with the P2508 code active?

It is not recommended to drive with this code active, as it may lead to further electrical issues or erratic engine behavior, potentially causing unsafe driving conditions.

7. How do I fix the P2508 code in a Dodge?

Repairs may include replacing or recharging the battery, cleaning or tightening battery terminals, repairing or replacing damaged wiring, or addressing issues with the alternator or ECM/PCM.

8. How much does it cost to repair the P2508 code in a Dodge?

Costs can vary depending on the root cause but generally range from $50 for a battery terminal cleaning to $500 or more for ECM/PCM replacement.

9. Can a faulty alternator cause the P2508 code in a Dodge?

Yes, a malfunctioning alternator can cause voltage irregularities, which may trigger the P2508 code.

10. Will clearing the P2508 code fix the problem in a Dodge?

Clearing the code may temporarily turn off the check engine light, but the underlying issue must be addressed to prevent the code from reappearing.

Discuss the causes and fixes for P2508 Dodge OBDII Code

Code P2508 Dodge comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play