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Engine-Codes – Generic – P0625

P0625 Code - Generator Field Terminal Circuit Low

Quick Answer

The P0625 diagnostic trouble code (DTC) refers to an issue in the generator field terminal circuit, specifically indicating that the voltage level in this circuit is lower than the expected range. Common causes include Faulty generator field terminal, Wiring issues such as loose connections or damaged wires, Defective alternator. 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
P0625 indicates Generator Field Terminal Circuit Low.
Common causes
Common causes include Faulty generator field terminal, Wiring issues such as loose connections or damaged wires, Defective alternator.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0625 Description

The P0625 diagnostic trouble code (DTC) refers to an issue in the generator field terminal circuit, specifically indicating that the voltage level in this circuit is lower than the expected range. The generator field terminal is responsible for controlling the output of the alternator, which plays a crucial role in charging the vehicle's battery and providing power to various electrical components while the engine is running. When this circuit is not functioning properly, it can lead to insufficient electrical power, affecting the vehicle's overall performance.

OBDII Code P0625 - Generator Field Terminal Circuit Low
P0625 Code - Generator Field Terminal Circuit Low

Common Causes of P0625

  1. Faulty generator field terminal
  2. Wiring issues such as loose connections or damaged wires
  3. Defective alternator
  4. Battery issues affecting the charging system
  5. Faulty engine control module (ECM)

Symptoms of P0625

  1. Dimming or flickering headlights
  2. Battery warning light illuminated on the dashboard
  3. Electrical malfunctions such as power windows or radio not working properly
  4. Engine stalling or difficulty starting
  5. Reduced fuel efficiency

How to Fix P0625

  1. Inspect the generator field terminal circuit for any loose connections or damaged wires.
  2. Test the alternator and generator field terminal for proper functionality.
  3. Replace any faulty components such as the generator field terminal, alternator, or ECM.
  4. Clear the diagnostic trouble codes and perform a test drive to ensure the issue is resolved.
  5. If needed, recharge or replace the vehicle's battery to ensure proper charging system operation.

Cost to Fix P0625

The typical repair costs for addressing a P0625 code can vary depending on the specific cause of the issue and the necessary repairs. In general, the cost of replacing the generator field terminal, alternator, or ECM can range from $200 to $600 or more, including parts and labor. Additional costs may apply if the battery needs to be replaced or if other related components require attention. As mentioned earlier, labor rates at auto repair shops can vary, so it's recommended to obtain quotes from local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0625

If the battery is OK then the alternator is more than likely the problem.

When is the Code Detected?

The Engine Control Module (ECM) has detected a fault on the generator field circuit

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Code P0625 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.

Frequently Asked Questions about P0625 Code

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  • Reparat alternator
    Dup? ce porne?te ma?in? la un minut apare bec baterie in bord
    Alternator încarc? 13.88 vol?i ce s? fie ,???

    Reply to Comment