AutoCodesChevrolet – P1002 2015 Chevrolet Silverado

P1002 2015 Chevrolet Silverado 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 Chevrolet Silverado 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.
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Code Popularity 431
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 04, 2022
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Code P1002 2015 Chevrolet Silverado Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. The Diagnostic Trouble Code (DTC) will be set when the Fuel Pump Driver Control Module detects a system voltage below or above a threshold.
OBDII Code P1002 2015 Chevrolet Silverado - Fuel Pump Driver Control Module System Voltage Performance - AutoCodes.com
P1002 2015 Chevrolet Silverado Code - Fuel Pump Driver Control Module System Voltage Performance

What are the Possible Causes of the DTC P1002 2015 Chevrolet Silverado?

  • 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 Chevrolet Silverado?

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 Chevrolet Silverado 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.

Need more information about the P1002 2015 Chevrolet Silverado code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1002 2015 Chevrolet Silverado Code

1. What does the OBDII code P1002 mean on a 2015 Chevrolet Silverado?

P1002 indicates an issue with the Fuel Pump Driver Control Module (FPCM) system voltage performance, meaning the module is not operating within its expected voltage range.

2. What are the common symptoms of the P1002 code?

Symptoms may include engine stalling, rough idling, difficulty starting, reduced fuel efficiency, or the Check Engine Light being illuminated.

3. What causes the P1002 code to appear?

Common causes include a faulty Fuel Pump Driver Control Module, wiring or connector issues, a failing fuel pump, or problems with the vehicle’s battery and charging system.

4. Can a weak battery trigger the P1002 code?

Yes, a weak or failing battery can cause voltage irregularities that may trigger the P1002 code.

5. How can I diagnose the P1002 code on my Silverado?

Start by checking the battery and alternator output, inspecting the FPCM wiring and connectors for damage, and testing the fuel pump for proper operation.

6. Is it safe to drive with the P1002 code active?

Driving with this code active is not recommended, as it may lead to poor engine performance, stalling, or potential damage to the fuel system.

7. How do I fix the P1002 code?

Repairs may involve replacing the Fuel Pump Driver Control Module, repairing damaged wiring or connectors, ensuring proper battery voltage, or replacing the fuel pump if necessary.

8. Can a faulty alternator cause the P1002 code?

Yes, a failing alternator can cause voltage issues that may affect the operation of the Fuel Pump Driver Control Module and trigger the code.

9. How much does it cost to fix the P1002 code?

The cost depends on the root cause, but replacing the Fuel Pump Driver Control Module typically ranges from $300 to $600, including parts and labor.

10. Will clearing the P1002 code with a scanner fix the issue?

Clearing the code will reset the Check Engine Light temporarily, but if the underlying issue is not resolved, the code will return.

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