P1255 2015 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 2015 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 2015 GMC Sierra Description
What are the Possible Causes of the DTC P1255 2015 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 2015 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 2015 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 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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