AutoCodesGeneric – P1179

P1179 Code - Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit

Quick Answer

The Fuel Pump Power Control Module is in constant communication with the Engine Control Module (ECM) regarding the operating state of the fuel pump power control system. Common causes include Faulty Fuel Pump Power Control Module, Fuel Pump Power Control Module harness is open or shorted, Fuel Pump Power 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
P1179 indicates Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit.
Common causes
Common causes include Faulty Fuel Pump Power Control Module, Fuel Pump Power Control Module harness is open or shorted, Fuel Pump Power 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 6,845
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 24, 2021
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Code P1179 Description

The Fuel Pump Power Control Module is in constant communication with the Engine Control Module (ECM) regarding the operating state of the fuel pump power control system. Serial data messages are sent in a continuously repeating series of rolling counts with associated password protect samples. Each count/sample is assigned a value. When the ECM determines there is an error in the fuel pump control module fuel level sensor internal supply circuit, the ECM sets Diagnostic Trouble Code (DTC) P1179.
OBDII Code P1179 - Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit - AutoCodes.com
P1179 Code - Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit

What are the Possible Causes of the DTC P1179?

  • Faulty Fuel Pump Power Control Module
  • Fuel Pump Power Control Module harness is open or shorted
  • Fuel Pump Power Control Module circuit poor electrical connection

How to Fix the DTC P1179?

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 P1179 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 P1179 code?

Need more information on how to fix the P1179 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1179 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P1179 Audi — Linear Oxygen Sensor Pump Current Short To Ground
  • P1179 BMW — O2 Sensor Signal Circuit Slow Switching From Rich to Lean Bank 2 Sensor 1
  • P1179 Buick — Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit
  • P1179 Cadillac — Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit
  • P1179 Chevrolet — Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit
  • P1179 GMC — Fuel Pump Driver Control Module Sensor 2 Internal Supply Circuit
  • P1179 Hyundai — Electronic Throttle System Position Mismatch
  • P1179 MINI — O2 Sensor Signal Circuit Slow Switching From Rich to Lean Bank 2 Sensor 1
  • P1179 Volkswagen — Linear Oxygen Sensor Pump Current Short To Ground
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 P1179 Code

1. What does the OBDII code P1179 mean?

P1179 indicates an issue with the Fuel Pump Driver Control Module (FPDM) Sensor 2 Internal Supply Circuit, suggesting a fault in the module's ability to manage or monitor fuel delivery.

2. What are common symptoms of code P1179?

Symptoms may include poor engine performance, difficulty starting the vehicle, stalling, reduced fuel efficiency, or the illumination of the check engine light.

3. What causes the P1179 code to appear?

Possible causes include a faulty Fuel Pump Driver Control Module, damaged wiring or connectors in the circuit, electrical short circuits, or a failing fuel pump.

4. Can a bad fuel pump trigger code P1179?

Yes, a failing fuel pump can cause the FPDM to detect abnormal conditions, potentially triggering the P1179 code.

5. How is the P1179 code diagnosed?

A mechanic will typically inspect the wiring and connectors, test the FPDM for functionality, and verify the fuel pump's performance using diagnostic tools.

6. Can I drive with the P1179 code active?

It’s not recommended to drive with this code active, as it can lead to engine performance issues and potential stalling, posing safety risks.

7. How do you fix the P1179 code?

Repairs may include replacing the faulty Fuel Pump Driver Control Module, repairing damaged wiring, or replacing the fuel pump if it is determined to be the cause.

8. Is the P1179 code specific to certain vehicles?

The P1179 code is often associated with certain manufacturers, such as Honda, Ford, or other brands, but the exact meaning and repair steps may vary by vehicle.

9. Can a weak battery cause the P1179 code?

While unlikely, a weak or failing battery can sometimes affect electrical components like the FPDM and indirectly contribute to issues.

10. How much does it cost to fix the P1179 code?

Repair costs vary depending on the root cause but typically range from $150 to $500 or more, depending on whether the FPDM, wiring, or fuel pump needs replacement.

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