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P1255 Cadillac Code - Fuel Pump Control Module Driver High Temperature

Quick Answer

The P1255 Cadillac code indicates a problem with the Fuel Pump Control Module Driver High Temperature. Common causes include Poor cooling system performance leading to overheating of the fuel pump control module, Electrical faults or short circuits in the fuel pump control module, Faulty fuel pump control module. 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 Cadillac indicates Fuel Pump Control Module Driver High Temperature.
Common causes
Common causes include Poor cooling system performance leading to overheating of the fuel pump control module, Electrical faults or short circuits in the fuel pump control module, Faulty fuel pump control module.
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 Sep 09, 2024
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Code P1255 Cadillac Description

The P1255 Cadillac code indicates a problem with the Fuel Pump Control Module Driver High Temperature. This means that the fuel pump control module in the vehicle is experiencing high temperatures, which can lead to various issues with the fuel system. 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 this module overheats, it can cause disruptions in fuel delivery, leading to poor engine performance, decreased fuel efficiency, and potential engine stalling.

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

Common Causes of P1255 Cadillac

  1. Poor cooling system performance leading to overheating of the fuel pump control module
  2. Electrical faults or short circuits in the fuel pump control module
  3. Faulty fuel pump control module
  4. Clogged fuel filter restricting fuel flow
  5. Excessive load on the fuel pump due to a clogged fuel line or a failing fuel pump

Symptoms of P1255 Cadillac

  1. Engine misfires or hesitation during acceleration
  2. Decreased fuel efficiency
  3. Engine stalling or difficulty starting
  4. Check engine light illuminated on the dashboard
  5. Rough idling or uneven engine performance

How to Fix P1255 Cadillac

  1. Begin by diagnosing the root cause of the high temperature in the fuel pump control module using a diagnostic scanner to retrieve the specific fault codes.
  2. Inspect the cooling system to ensure proper function and address any issues such as a malfunctioning cooling fan or clogged radiator.
  3. Check the electrical connections to the fuel pump control module for any corrosion or loose connections, repairing or replacing as necessary.
  4. Test the fuel pump control module for proper function and replace if found to be faulty.
  5. Replace the fuel filter and inspect the fuel pump for any signs of damage or wear.

Cost to Fix P1255 Cadillac

The cost of repairing a P1255 Cadillac code can vary depending on the specific cause of the issue and the labor rates in your area. Typically, the cost of parts for this repair can range from $200 to $500, while labor costs can range from $150 to $300. Overall, you can expect to pay anywhere from $350 to $800 for this repair. It is advisable to contact local auto repair shops for accurate pricing based on your vehicle's make and model.

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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 P1255 Cadillac Code

1. What are the common symptoms of OBDII code P1255 in a Cadillac related to the Fuel Pump Control Module Driver High Temperature?

The common symptoms include engine stalling, rough idling, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P1255 in a Cadillac indicating an issue with the Fuel Pump Control Module Driver High Temperature?

Possible causes include a faulty fuel pump control module, wiring issues, high ambient temperatures, or a malfunctioning fuel pump.

3. How can I diagnose OBDII code P1255 in my Cadillac related to the Fuel Pump Control Module Driver High Temperature?

Diagnosis involves using an OBDII scanner to retrieve the specific code, inspecting the fuel pump control module and wiring for any visible damage, and conducting temperature tests to identify overheating issues.

4. What are some repair tips for addressing OBDII code P1255 in a Cadillac associated with the Fuel Pump Control Module Driver High Temperature?

Repair tips include replacing the faulty fuel pump control module, repairing any damaged wiring, ensuring proper cooling for the module, and addressing any underlying fuel pump issues.

5. Can driving with OBDII code P1255 related to the Fuel Pump Control Module Driver High Temperature cause further damage to my Cadillac?

Continuing to drive with this code can potentially lead to fuel pump failure, engine performance issues, and further damage to the vehicle's components, so it's recommended to address the problem promptly.

6. Is it safe to reset the check engine light after experiencing OBDII code P1255 in a Cadillac due to the Fuel Pump Control Module Driver High Temperature?

While resetting the check engine light may temporarily turn it off, it's crucial to diagnose and repair the underlying issue causing the code to prevent potential long-term damage to the vehicle.

7. How much does it typically cost to repair OBDII code P1255 in a Cadillac related to the Fuel Pump Control Module Driver High Temperature?

Costs can vary depending on the specific repair needed, but replacing a fuel pump control module can range from $200 to $600, including parts and labor.

8. What steps can I take to prevent OBDII code P1255 in my Cadillac indicating an issue with the Fuel Pump Control Module Driver High Temperature?

To prevent this code, ensure regular maintenance of the fuel pump system, keep the cooling system in good condition, and address any warning signs promptly to avoid overheating issues.

9. Can a DIY enthusiast repair OBDII code P1255 related to the Fuel Pump Control Module Driver High Temperature in a Cadillac?

While some aspects of the repair, such as checking wiring connections, can be done by a DIY enthusiast, replacing the fuel pump control module may require specialized tools and expertise, so it's best to consult a professional mechanic.

10. How long does it take to repair OBDII code P1255 in a Cadillac due to the Fuel Pump Control Module Driver High Temperature?

The repair time can vary depending on the exact cause of the issue and the extent of the repair needed, but it typically takes a few hours to a full day to diagnose and fix the problem.

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