P1255 2014 GMC Sierra Code - Fuel Pump Control Module Driver High Temperature
Quick Answer
The P1255 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Fuel Pump Control Module (FPCM) driver high temperature. Common causes include Electrical faults in the FPCM driver circuit, Wiring issues or shorts in the fuel pump control system, 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 2014 GMC Sierra indicates Fuel Pump Control Module Driver High Temperature.
- Common causes
- Common causes include Electrical faults in the FPCM driver circuit, Wiring issues or shorts in the fuel pump control system, 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.
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Code P1255 2014 GMC Sierra Description
The P1255 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Fuel Pump Control Module (FPCM) driver high temperature. The FPCM is responsible for controlling the fuel pump's operation, ensuring the correct fuel pressure is maintained for the engine's performance. When the FPCM driver temperature is too high, it can lead to issues with fuel delivery, potentially causing engine performance problems.
Common Causes of P1255 2014 GMC Sierra
- Electrical faults in the FPCM driver circuit.
- Wiring issues or shorts in the fuel pump control system.
- Malfunctioning fuel pump.
- Overheating of the FPCM due to poor ventilation or cooling.
Symptoms of P1255 2014 GMC Sierra
- Check Engine Light illuminated on the dashboard.
- Decreased fuel efficiency.
- Engine misfires or rough idling.
- Stalling or hesitation during acceleration.
- Complete engine failure in severe cases.
How to Fix P1255 2014 GMC Sierra
- Begin by diagnosing the specific cause of the high temperature in the FPCM driver using a diagnostic scanner to retrieve the trouble codes and pinpoint the issue.
- Inspect the FPCM driver circuit and wiring for any signs of damage, corrosion, or shorts. Repair or replace any faulty components as needed.
- Test the fuel pump's operation to ensure it is functioning correctly. Replace the fuel pump if it is found to be malfunctioning.
- Check the FPCM's cooling system to ensure proper ventilation and cooling. Address any issues that may be causing overheating.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved and the Check Engine Light does not reappear.
Cost to Fix P1255 2014 GMC Sierra
The cost of repairing a P1255 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue and the parts and labor required for the repair. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it is essential to note that 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 with local auto repair shops for a more accurate estimate based on your specific circumstances.
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Frequently Asked Questions about P1255 2014 GMC Sierra Code
What does OBDII code P1255 mean for a 2014 GMC Sierra?
Code P1255 indicates that the Fuel Pump Control Module (FPCM) has detected a high-temperature condition in its driver circuit.
What are the common symptoms of code P1255 in a 2014 GMC Sierra?
Symptoms may include difficulty starting the engine, reduced engine performance, poor fuel efficiency, or the engine stalling.
What causes the P1255 code to trigger?
Common causes include an overheating fuel pump control module, electrical issues such as short circuits or damaged wiring, or a malfunctioning fuel pump.
Can I drive my 2014 GMC Sierra with code P1255 active?
It’s not recommended to drive with this code active, as it could lead to further damage to the fuel pump system or leave you stranded due to engine failure.
How do mechanics diagnose code P1255?
Technicians typically inspect the fuel pump control module, wiring, and connectors for damage, test the fuel pump circuit, and monitor temperature readings using a scan tool.
What repairs are needed to fix code P1255?
Repairs may include replacing the fuel pump control module, repairing or replacing damaged wiring, or addressing any overheating issues in the fuel pump system.
How much does it cost to fix the P1255 code on a 2014 GMC Sierra?
Repair costs vary but may range from $300 to $700, depending on whether the fuel pump control module or wiring needs repair or replacement.
Can a faulty fuel pump cause code P1255?
Yes, a malfunctioning or overloaded fuel pump can cause the fuel pump control module to overheat, triggering the P1255 code.
How can I prevent code P1255 from recurring?
Regular maintenance, inspecting wiring and connections for damage, and ensuring the fuel pump is operating correctly can help prevent this code from recurring.
Does the P1255 code require reprogramming the fuel pump control module?
In some cases, reprogramming or updating the fuel pump control module software may be necessary after repairs, depending on the diagnostic findings.
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