Engine-CodesChevrolet – P1255 2015 Chevrolet Silverado

P1255 2015 Chevrolet Silverado Code - Fuel Pump Control Module Driver High Temperature

Quick Answer

The P1255 diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado indicates that the Fuel Pump Control Module (FPCM) driver has detected a high temperature condition. Common causes include Excessive current flow to the FPCM, Poor electrical connections to the FPCM, Malfunctioning fuel pump. 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 2015 Chevrolet Silverado indicates Fuel Pump Control Module Driver High Temperature.
Common causes
Common causes include Excessive current flow to the FPCM, Poor electrical connections to the FPCM, Malfunctioning fuel pump.
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 14, 2024
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Code P1255 2015 Chevrolet Silverado Description

The P1255 diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado indicates that the Fuel Pump Control Module (FPCM) driver has detected a high temperature condition. The FPCM is responsible for controlling the fuel pump's operation, ensuring the correct fuel pressure is maintained for optimal engine performance. When the FPCM driver temperature exceeds the specified limit, it can lead to various issues that affect the vehicle's performance and potentially cause long-term damage if left unaddressed.

OBDII Code P1255 2015 Chevrolet Silverado - Fuel Pump Control Module Driver High Temperature
P1255 2015 Chevrolet Silverado Code - Fuel Pump Control Module Driver High Temperature

Common Causes of P1255 2015 Chevrolet Silverado

  1. Excessive current flow to the FPCM
  2. Poor electrical connections to the FPCM
  3. Malfunctioning fuel pump
  4. Overheating of the FPCM due to external factors
  5. Faulty FPCM driver module

Symptoms of P1255 2015 Chevrolet Silverado

  1. Check Engine Light illuminated
  2. Engine misfires
  3. Hesitation or lack of power during acceleration
  4. Stalling or difficulty starting
  5. Decreased fuel efficiency

How to Fix P1255 2015 Chevrolet Silverado

  1. Diagnose the root cause of the high temperature in the FPCM driver using a scan tool to retrieve the DTC and perform electrical tests.
  2. Inspect and test the electrical connections to the FPCM for any corrosion, damage, or loose connections. Repair or replace as necessary.
  3. Check the fuel pump operation and pressure to ensure it is functioning correctly. Replace the fuel pump if it is faulty.
  4. Verify the cooling system's operation to prevent overheating of the FPCM. Check for any obstructions or malfunctions in the cooling system.
  5. Clear the DTC and perform a test drive to confirm the issue has been resolved.

Cost to Fix P1255 2015 Chevrolet Silverado

The typical repair costs for addressing a P1255 code in a 2015 Chevrolet Silverado can range from $200 to $600, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more precise estimate. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops.

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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 2015 Chevrolet Silverado Code

1. What does the OBDII code P1255 mean on a 2015 Chevrolet Silverado?

P1255 indicates that the Fuel Pump Control Module (FPCM) has detected a high temperature condition in its driver circuit.

2. What are the symptoms of code P1255 in a 2015 Chevrolet Silverado?

Common symptoms include difficulty starting the engine, engine stalling, reduced fuel efficiency, or the vehicle failing to start altogether.

3. What causes the P1255 code to appear on a 2015 Chevrolet Silverado?

Potential causes include an overheating Fuel Pump Control Module, electrical issues like a short circuit or poor connections, or a failing fuel pump.

4. Is it safe to drive with a P1255 code on a 2015 Chevrolet Silverado?

Driving with this code may cause further damage or lead to engine stalling, so it’s recommended to address the issue promptly.

5. How do I diagnose a P1255 code on my 2015 Chevrolet Silverado?

Diagnosis typically involves inspecting the Fuel Pump Control Module for overheating, checking wiring and connectors for damage, and testing the fuel pump for proper operation.

6. Can a faulty fuel pump cause the P1255 code on a 2015 Chevrolet Silverado?

Yes, a failing or overworking fuel pump can cause the Fuel Pump Control Module to overheat and trigger the P1255 code.

7. How can I fix the P1255 code on a 2015 Chevrolet Silverado?

Repairs may involve replacing the Fuel Pump Control Module, repairing or replacing damaged wiring, or installing a new fuel pump if necessary.

8. Will clearing the P1255 code fix the problem on my 2015 Chevrolet Silverado?

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

9. How much does it cost to repair a P1255 code on a 2015 Chevrolet Silverado?

Repair costs can vary, ranging from $100 for wiring repairs to $500 or more for replacing the Fuel Pump Control Module or fuel pump.

10. Can extreme weather cause the P1255 code on a 2015 Chevrolet Silverado?

Yes, high ambient temperatures or poor heat dissipation can contribute to the Fuel Pump Control Module overheating and triggering the code.

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