AutoCodes – Chevrolet – P1255 2014 Chevrolet Silverado

P1255 2014 Chevrolet Silverado Code - Fuel Pump Control Module Driver High Temperature

Quick Answer

The Engine Control Module (ECM) supplies voltage to the fuel pump control module when the ECM detects that the ignition is on. Common causes include Faulty Fuel Pump Control Module, Fuel Pump Control Module harness is open or shorted, Fuel Pump Control Module circuit poor electrical connection. 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 2014 Chevrolet Silverado indicates Fuel Pump Control Module Driver High Temperature.
Common causes: Common causes include Faulty Fuel Pump Control Module, Fuel Pump Control Module harness is open or shorted, Fuel Pump Control Module circuit poor electrical connection.
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.

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Code Popularity 283

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1255 2014 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to the fuel pump control module when the ECM detects that the ignition is on. The voltage from the ECM to the fuel pump control module remains for 2 seconds unless the engine is cranked or run. While this voltage is being received, the fuel pump control module supplies a varying voltage to the fuel tank pump module in order to maintain the desired fuel pressure. The Diagnostic Trouble Code (DTC) will be set if the fuel pump control module detects an over-temperature fault.

OBDII Code P1255 2014 Chevrolet Silverado - Fuel Pump Control Module Driver High Temperature - AutoCodes.com — P1255 2014 Chevrolet Silverado Code - Fuel Pump Control Module Driver High Temperature

What does this mean?

What are the Possible Causes of the DTC P1255 2014 Chevrolet Silverado?

Faulty Fuel Pump Control Module
Fuel Pump Control Module harness is open or shorted
Fuel Pump Control Module circuit poor electrical connection

How to Fix the DTC P1255 2014 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1255 2014 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1255 2014 Chevrolet Silverado code?

Need more information on how to fix the P1255 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 2014 Chevrolet Silverado Code

1. What does the OBDII code P1255 mean on a 2014 Chevrolet Silverado?

Code 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 2014 Chevrolet Silverado?

Symptoms may include difficulty starting the engine, reduced engine performance, stalling, or the illumination of the check engine light.

3. What causes the P1255 code to appear on a 2014 Chevrolet Silverado?

Common causes include a malfunctioning Fuel Pump Control Module, poor electrical connections, excessive heat, or a short circuit in the wiring.

4. Can I drive my 2014 Chevrolet Silverado with a P1255 code?

Driving with this code is not recommended, as it may lead to fuel system issues, engine stalling, or further damage to the Fuel Pump Control Module.

5. How is the P1255 code diagnosed on a 2014 Chevrolet Silverado?

A mechanic will use a scan tool to confirm the code, inspect the FPCM and its wiring for damage, and test the electrical connections and temperature sensor.

6. How do you fix the P1255 code on a 2014 Chevrolet Silverado?

Repairs may include replacing the Fuel Pump Control Module, repairing damaged wiring or connectors, and ensuring proper cooling to prevent overheating.

7. What tools are needed to fix the P1255 code on a 2014 Chevrolet Silverado?

Tools may include an OBDII scan tool, a multimeter for testing electrical components, and basic hand tools for accessing and replacing the module.

8. How much does it cost to repair the P1255 code on a 2014 Chevrolet Silverado?

Repair costs vary depending on the issue, but replacing the FPCM can cost between $300 and $600, including parts and labor.

9. Can a faulty fuel pump cause the P1255 code on a 2014 Chevrolet Silverado?

While unlikely, a faulty fuel pump could cause excessive strain on the Fuel Pump Control Module, leading to overheating and triggering the code.

10. How can I prevent the P1255 code from occurring in my 2014 Chevrolet Silverado?

Regular maintenance, ensuring proper ventilation around the FPCM, and addressing any wiring issues promptly can help prevent this code from recurring.