P1002 2015 GMC Sierra Code - Fuel Pump Driver Control Module System Voltage Performance
Quick Answer
The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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
- P1002 2015 GMC Sierra indicates Fuel Pump Driver Control Module System Voltage Performance.
- Common causes
- Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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 P1002 2015 GMC Sierra Description
What are the Possible Causes of the DTC P1002 2015 GMC Sierra?
- Faulty Fuel Pump Driver Control Module
- Fuel Pump Driver Control Module harness is open or shorted
- Fuel Pump Driver Control Module circuit poor electrical connection
How to Fix the DTC P1002 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 P1002 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 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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