P1255 2017 GMC Sierra Code - Fuel Pump Control Module Driver High Temperature
Quick Answer
The P1255 code on a 2017 GMC Sierra indicates that the Fuel Pump Control Module (FPCM) driver has detected a high temperature condition. Common causes include Malfunctioning fuel pump, Faulty FPCM, Wiring issues. 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 2017 GMC Sierra indicates Fuel Pump Control Module Driver High Temperature.
- Common causes
- Common causes include Malfunctioning fuel pump, Faulty FPCM, Wiring issues.
- 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 2017 GMC Sierra Description
The P1255 code on a 2017 GMC Sierra indicates that the Fuel Pump Control Module (FPCM) driver has detected a high temperature condition. The FPCM is responsible for controlling the fuel pump operation, ensuring the proper fuel pressure is maintained for the engine to run smoothly. When the FPCM driver temperature is too high, it can lead to various issues with the fuel pump operation, potentially causing drivability problems and even engine stalling.
Common Causes of P1255 2017 GMC Sierra
- Malfunctioning fuel pump
- Faulty FPCM
- Wiring issues
- Engine cooling system problems
Symptoms of P1255 2017 GMC Sierra
- Rough idling
- Hesitation during acceleration
- Reduced fuel efficiency
- Engine stalling
How to Fix P1255 2017 GMC Sierra
- Diagnose the root cause of the high temperature condition by checking the fuel pump, FPCM, wiring, and cooling system.
- Replace the faulty component, whether it's the fuel pump, FPCM, or damaged wiring.
- Clear the diagnostic trouble codes from the vehicle's computer system.
- Test drive the vehicle to ensure the issue has been resolved.
- Monitor the FPCM driver temperature to ensure it stays within the normal operating range.
Cost to Fix P1255 2017 GMC Sierra
The typical repair costs for addressing a P1255 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a fuel pump or FPCM can range from $300 to $800, including parts and labor. Wiring repairs or cooling system fixes may incur additional costs. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
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Frequently Asked Questions about P1255 2017 GMC Sierra Code
1. What does OBDII code P1255 mean on a 2017 GMC Sierra?
Code P1255 indicates that the Fuel Pump Control Module (FPCM) has detected a driver high-temperature condition, potentially signaling an overheating issue.
2. What are the common symptoms of P1255 on a 2017 GMC Sierra?
Symptoms may include reduced engine performance, difficulty starting, engine stalling, or the illumination of the check engine light.
3. What causes the P1255 code to trigger?
Common causes include an overheating fuel pump control module, poor ventilation to the module, electrical wiring issues, or a failing fuel pump.
4. Can I still drive my GMC Sierra with the P1255 code?
Driving with this code is not recommended, as it could lead to further damage to the fuel pump system or cause the vehicle to stall unexpectedly.
5. How do I fix the P1255 code on a 2017 GMC Sierra?
Repairs may involve inspecting and replacing the Fuel Pump Control Module, checking for wiring issues, ensuring proper ventilation, or replacing the fuel pump if necessary.
6. How do I diagnose the P1255 code on my GMC Sierra?
Use an OBDII scanner to confirm the code, then inspect the FPCM for overheating, check for damaged wiring, and test the fuel pump for proper operation.
7. Is the Fuel Pump Control Module expensive to replace on a 2017 GMC Sierra?
The cost can vary, but replacing the FPCM typically ranges from $300 to $600, including parts and labor.
8. Can a dirty fuel filter cause the P1255 code?
While a dirty fuel filter is unlikely to directly cause this code, it can strain the fuel pump, potentially leading to overheating issues.
9. Will resetting the code fix the P1255 issue?
Resetting the code may temporarily clear it, but the underlying issue must be resolved to prevent the code from returning.
10. How can I prevent the P1255 code from recurring?
Regular maintenance, ensuring the FPCM has proper ventilation, and addressing any overheating or wiring issues promptly can help prevent this code.
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