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Engine-Codes – Generic – P1255

P1255 Code - Fuel Pump Control Module Driver High Temperature

Quick Answer

The P1255 diagnostic trouble code indicates that the Fuel Pump Control Module Driver is experiencing high temperatures. Common causes include Faulty fuel pump control module driver, Overheating due to poor ventilation in the engine compartment, Electrical issues such as a short circuit. 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
P1255 indicates Fuel Pump Control Module Driver High Temperature.
Common causes
Common causes include Faulty fuel pump control module driver, Overheating due to poor ventilation in the engine compartment, Electrical issues such as a short circuit.
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 19, 2024
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Code P1255 Description

The P1255 diagnostic trouble code indicates that the Fuel Pump Control Module Driver is experiencing high temperatures. The fuel pump control module is responsible for regulating the fuel pump's operation, ensuring the correct amount of fuel is delivered to the engine. When the driver within the module becomes too hot, it can lead to issues with fuel delivery, potentially causing engine performance issues. This can result in poor fuel economy, rough idling, hesitation during acceleration, or even stalling. Ignoring this code can lead to long-term damage to the fuel pump system and may eventually cause the vehicle to break down.

OBDII Code P1255 - Fuel Pump Control Module Driver High Temperature
P1255 Code - Fuel Pump Control Module Driver High Temperature

Common Causes of P1255

  1. Faulty fuel pump control module driver
  2. Overheating due to poor ventilation in the engine compartment
  3. Electrical issues such as a short circuit
  4. Excessive strain on the fuel pump due to clogged fuel filters
  5. High ambient temperatures causing the driver to overheat

Symptoms of P1255

  1. Decreased fuel efficiency
  2. Engine misfires
  3. Engine stalling
  4. Difficulty starting the engine
  5. Check engine light illuminated

How to Fix P1255

  1. Begin by diagnosing the exact cause of the high temperature in the fuel pump control module driver.
  2. Inspect the electrical connections to ensure there are no loose or corroded wires.
  3. Check the cooling system to ensure proper ventilation and cooling for the module.
  4. Replace the fuel pump control module driver if it is determined to be faulty.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1255

The cost of repairing a P1255 code can vary depending on the specific cause of the issue and the make and model of the vehicle. In general, the cost of replacing a fuel pump control module driver can range from $200 to $500, including parts and labor. However, additional costs may apply if other components need to be replaced or if there are underlying electrical issues. It is recommended to consult with a trusted mechanic or auto repair shop to get an accurate estimate for your vehicle.

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Code P1255 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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