P1002 2015 GMC Sierra Code - Fuel Pump Driver Control Module System Voltage Performance
Quick Answer
The P1002 diagnostic trouble code for a 2015 GMC Sierra indicates a potential issue with the Fuel Pump Driver Control Module System Voltage Performance. Common causes include Faulty Fuel Pump Driver Control Module, Wiring or connector issues in the fuel pump circuit, Low fuel pressure due to a failing 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
- P1002 2015 GMC Sierra indicates Fuel Pump Driver Control Module System Voltage Performance.
- Common causes
- Common causes include Faulty Fuel Pump Driver Control Module, Wiring or connector issues in the fuel pump circuit, Low fuel pressure due to a failing 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 P1002 2015 GMC Sierra Description
The P1002 diagnostic trouble code for a 2015 GMC Sierra indicates a potential issue with the Fuel Pump Driver Control Module System Voltage Performance. This module is responsible for controlling the fuel pump's operation and ensuring the correct voltage is supplied for proper fuel delivery to the engine. When this system experiences performance issues, it can lead to various problems with the vehicle's fuel delivery system, impacting its overall performance and efficiency.
Common Causes of P1002 2015 GMC Sierra
- Faulty Fuel Pump Driver Control Module
- Wiring or connector issues in the fuel pump circuit
- Low fuel pressure due to a failing fuel pump
- Electrical issues in the vehicle's power supply system
- Corrosion or damage to the fuel pump control module
Symptoms of P1002 2015 GMC Sierra
- Engine stalling or hesitation during acceleration
- Difficulty starting the engine or long cranking times
- Reduced fuel efficiency
- Check engine light illuminated on the dashboard
- Loss of power while driving
How to Fix P1002 2015 GMC Sierra
- Diagnose the issue using a diagnostic scan tool to pinpoint the exact cause of the voltage performance problem.
- Inspect the wiring and connectors in the fuel pump circuit for any damage or corrosion.
- Test the fuel pump and the fuel pump driver control module for proper functionality.
- Replace the faulty fuel pump driver control module or repair any damaged wiring as needed.
- Clear the diagnostic trouble codes and perform a test drive to ensure the issue has been resolved.
Cost to Fix P1002 2015 GMC Sierra
The cost of repairing a Fuel Pump Driver Control Module System Voltage Performance issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. It's important to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model.
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Frequently Asked Questions about P1002 2015 GMC Sierra Code
1. What does the OBDII code P1002 mean on a 2015 GMC Sierra?
The P1002 code indicates an issue with the Fuel Pump Driver Control Module (FPCM) system voltage performance, meaning the module is not operating within the expected voltage range.
2. What are the common symptoms of code P1002 in a 2015 GMC Sierra?
Symptoms may include difficulty starting, engine stalling, reduced fuel efficiency, poor engine performance, or the check engine light being illuminated.
3. What are the common causes of the P1002 code?
Common causes include a failing fuel pump driver control module, faulty wiring or connectors, low battery voltage, a failing fuel pump, or issues with the powertrain control module (PCM).
4. Can a weak battery cause the P1002 code on a 2015 GMC Sierra?
Yes, a weak or failing battery can cause the fuel pump driver control module to receive insufficient voltage, triggering the P1002 code.
5. How do you diagnose the P1002 code on a 2015 GMC Sierra?
Diagnosis includes checking the battery voltage, inspecting wiring and connectors for damage, testing the fuel pump driver control module, and using a scan tool to monitor voltage levels in the fuel system.
6. Can I drive my 2015 GMC Sierra with a P1002 code?
It is not recommended to drive with this code, as it can lead to poor engine performance, stalling, or further damage to the fuel system components.
7. How is the P1002 code typically fixed on a 2015 GMC Sierra?
Repairs may involve replacing the fuel pump driver control module, repairing or replacing damaged wiring or connectors, charging or replacing the battery, or reprogramming the PCM.
8. How much does it cost to repair the P1002 code on a 2015 GMC Sierra?
Repair costs can vary, but replacing the fuel pump driver control module typically ranges from $300 to $700, including parts and labor.
9. Can a software update fix the P1002 code on a 2015 GMC Sierra?
In some cases, a PCM software update may resolve the issue, especially if the code is due to a programming error in the control system.
10. What tools are needed to troubleshoot the P1002 code?
You’ll need a digital multimeter to check voltage and continuity, a scan tool to read live data and fault codes, and potentially a battery tester to assess the battery’s condition.
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