P1255 2015 GMC Sierra Code - Fuel Pump Control Module Driver High Temperature
Quick Answer
The P1255 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Fuel Pump Control Module (FPCM) driver high temperature. Common causes include Electrical issues such as a short circuit or damaged wiring, Overheating of the FPCM due to poor ventilation, Malfunctioning fuel pump drawing excessive current. 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 GMC Sierra indicates Fuel Pump Control Module Driver High Temperature.
- Common causes
- Common causes include Electrical issues such as a short circuit or damaged wiring, Overheating of the FPCM due to poor ventilation, Malfunctioning fuel pump drawing excessive current.
- 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 2015 GMC Sierra Description
The P1255 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Fuel Pump Control Module (FPCM) driver high temperature. The FPCM is a crucial component responsible for regulating the fuel pump's operation, ensuring the correct fuel pressure is maintained for optimal engine performance. When the FPCM driver temperature is detected as too high, it suggests that there is an issue with the module's ability to control the fuel pump effectively.
Common Causes of P1255 2015 GMC Sierra
- Electrical issues such as a short circuit or damaged wiring.
- Overheating of the FPCM due to poor ventilation.
- Malfunctioning fuel pump drawing excessive current.
- Corrosion or contamination in the fuel system.
- Software or firmware issues affecting the FPCM's operation.
Symptoms of P1255 2015 GMC Sierra
- Engine stalling or hesitation during acceleration.
- Rough idling or misfires.
- Check engine light illuminated on the dashboard.
- Reduced fuel efficiency.
- Difficulty starting the vehicle.
How to Fix P1255 2015 GMC Sierra
- Begin by conducting a thorough inspection of the FPCM, fuel pump, and related wiring for any signs of damage or overheating.
- Test the electrical connections to ensure proper voltage and continuity.
- Replace the FPCM if it is determined to be faulty or damaged.
- Check and clean the fuel system components to ensure proper operation.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
Cost to Fix P1255 2015 GMC Sierra
The cost of repairing a P1255 code on a 2015 GMC Sierra can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and engine type can also influence the overall repair costs. For a more accurate estimate, it is recommended to consult with a local auto repair shop.
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Frequently Asked Questions about P1255 2015 GMC Sierra Code
1. What does the OBDII code P1255 mean on a 2015 GMC Sierra?
P1255 indicates that the Fuel Pump Control Module (FPCM) has detected an excessively high temperature in the driver circuit, which controls the fuel pump.
2. What are the common symptoms of a P1255 code in a 2015 GMC Sierra?
Symptoms may include reduced engine performance, difficulty starting, engine stalling, or an illuminated check engine light.
3. What causes the P1255 code on a 2015 GMC Sierra?
Common causes include an overheating fuel pump control module, electrical issues like short circuits or poor wiring connections, or a failing fuel pump.
4. Can I drive my 2015 GMC Sierra with a P1255 code?
Driving with a P1255 code is not recommended, as it may cause further damage to the fuel system or lead to sudden engine stalling.
5. How do I diagnose the P1255 code on my 2015 GMC Sierra?
Diagnosis involves inspecting the wiring and connections to the Fuel Pump Control Module, checking for overheating signs, and testing the fuel pump functionality.
6. What repairs are needed to fix the P1255 code on a 2015 GMC Sierra?
Repairs may include replacing the Fuel Pump Control Module, repairing damaged wiring, or replacing the fuel pump if it’s causing excessive heat.
7. How much does it cost to fix a P1255 code on a 2015 GMC Sierra?
Repair costs vary but may range from $200 to $600, depending on whether the issue is with the module, wiring, or fuel pump.
8. Can a bad fuel pump cause a P1255 code on a 2015 GMC Sierra?
Yes, a failing fuel pump can overwork the Fuel Pump Control Module, leading to overheating and triggering the P1255 code.
9. How can I prevent the P1255 code from occurring again?
Regular maintenance, ensuring proper fuel system operation, and addressing wiring or electrical issues promptly can help prevent this code.
10. Is the Fuel Pump Control Module covered under warranty for a 2015 GMC Sierra?
It depends on the warranty terms. Check with your dealership to see if the module is still covered under the powertrain or emissions warranty.
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