P1255 2017 GMC Sierra 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 2017 GMC Sierra 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.
Code P1255 2017 GMC Sierra Description
What are the Possible Causes of the DTC P1255 2017 GMC Sierra?
- 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 2017 GMC Sierra?
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 2017 GMC Sierra 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.
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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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