AutoCodes – Buick – P1005 Buick

P1005 Buick Code - Fuel Pump Driver Control Module Enable Too Many Resets

Quick Answer

The fuel pump driver control module sends a message every 100 ms to the Engine Control Module (ECM) that indicates the amount of time elapsed since the last controller reset (power up or running reset). 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: P1005 Buick indicates Fuel Pump Driver Control Module Enable Too Many Resets.
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 763

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1005 Buick Description

The fuel pump driver control module sends a message every 100 ms to the Engine Control Module (ECM) that indicates the amount of time elapsed since the last controller reset (power up or running reset). This message is used to detect if the fuel pump driver control module has unexpectedly reset and will eventually set a Diagnostic Trouble Code (DTC) if the resets continue.

OBDII Code P1005 Buick - Fuel Pump Driver Control Module Enable Too Many Resets - AutoCodes.com — P1005 Buick Code - Fuel Pump Driver Control Module Enable Too Many Resets

What does this mean?

What are the Possible Causes of the DTC P1005 Buick?

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 P1005 Buick?

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 P1005 Buick 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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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 P1005 Buick Code

What does the OBDII code P1005 mean on a Buick?

1. P1005 indicates that the Fuel Pump Driver Control Module (FPCM) has experienced excessive resets, which may point to an electrical issue or communication fault within the module. 2.

What are the common symptoms of code P1005 in a Buick?

Symptoms may include difficulty starting the engine, stalling, reduced fuel efficiency, poor engine performance, or an illuminated check engine light. 3.

What causes the P1005 code to be triggered in a Buick?

Common causes include a faulty Fuel Pump Driver Control Module, wiring or connector issues, a low or unstable battery voltage, or a software-related glitch in the fuel system control. 4.

Can a weak battery cause the P1005 code in a Buick?

Yes, a weak or failing battery can cause voltage instability, which may lead to excessive resets in the Fuel Pump Driver Control Module and trigger the P1005 code. 5.

How do you diagnose the P1005 code in a Buick?

Diagnosis involves checking the FPCM for proper operation, inspecting wiring and connectors for damage or corrosion, testing battery voltage, and using a scan tool to monitor related fuel system parameters. 6.

Is it safe to drive with the P1005 code on a Buick?

While it may be possible to drive, ignoring the code can lead to further engine performance issues or stalling, so itâ€™s best to address the issue promptly. 7.

How can the P1005 code be fixed in a Buick?

Repairs may include replacing the Fuel Pump Driver Control Module, repairing damaged wiring or connectors, updating the vehicleâ€™s software, or addressing battery voltage issues. 8.

Does the P1005 code always mean the Fuel Pump Driver Control Module is bad?

No, the issue could also stem from wiring problems, low battery voltage, or software errors, so a thorough diagnosis is essential before replacing the module. 9.

What tools are needed to troubleshoot the P1005 code in a Buick?

Basic tools include a digital multimeter, a scan tool with bi-directional controls, and potentially an oscilloscope to test electrical signals. 10.

Can a software update fix the P1005 code in a Buick?

In some cases, a software update to the engine control module (ECM) or the Fuel Pump Driver Control Module may resolve the issue if itâ€™s related to a programming glitch.