Engine-CodesGeneric – P2507

P2507 Code - ECM/PCM Power Input Signal Low

Quick Answer

The P2507 diagnostic trouble code indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a low voltage signal from the power input circuit. Common causes include Faulty ECM/PCM power input circuit, Loose or corroded electrical connections, Blown fuse related to the ECM/PCM. 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
P2507 indicates ECM/PCM Power Input Signal Low.
Common causes
Common causes include Faulty ECM/PCM power input circuit, Loose or corroded electrical connections, Blown fuse related to the ECM/PCM.
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P2507 Description

The P2507 diagnostic trouble code indicates that the Engine Control Module (ECM) or Powertrain Control Module (PCM) has detected a low voltage signal from the power input circuit. This can result in various issues with the vehicle's performance and overall operation. The ECM/PCM is responsible for managing and controlling various functions within the vehicle, such as fuel delivery, ignition timing, and emissions control. When the power input signal is low, it can lead to malfunctions in these systems, potentially causing drivability issues, reduced fuel efficiency, and even engine stalling.

OBDII Code P2507 - ECM/PCM Power Input Signal Low
P2507 Code - ECM/PCM Power Input Signal Low

Common Causes of P2507

  1. Faulty ECM/PCM power input circuit
  2. Loose or corroded electrical connections
  3. Blown fuse related to the ECM/PCM
  4. Faulty battery or alternator
  5. Wiring harness issues

Symptoms of P2507

  1. Check engine light illuminated on the dashboard
  2. Engine misfires or hesitation during acceleration
  3. Poor fuel economy
  4. Difficulty starting the engine
  5. Vehicle may go into limp mode (limited performance mode)

How to Fix P2507

  1. Begin by performing a thorough inspection of the power input circuit, checking for loose or corroded connections.
  2. Test the battery and alternator to ensure they are functioning correctly.
  3. Check and replace any blown fuses related to the ECM/PCM.
  4. If necessary, replace the ECM/PCM if it is determined to be faulty.
  5. Clear the trouble code, reset the ECM/PCM, and retest the vehicle to ensure the issue has been resolved.

Cost to Fix P2507

The cost of repairing a P2507 code can vary depending on the underlying cause of the issue. In general, the cost of parts for this repair can range from $50 to $300, with labor costs adding an additional $80 to $150 per hour. Overall, the total cost of repairing this issue could range from $150 to $600 or more, depending on the specific circumstances and the type of repair shop used. It's recommended to consult with a qualified mechanic to get an accurate estimate for your particular vehicle.

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Code P2507 Information for Specific Makes

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.

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