P129D Chevrolet Code - Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage
Quick Answer
The Fuel Pump Power Control Module monitors the ignition voltage circuit to determine if the voltage is within the normal operating range. 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
- P129D Chevrolet indicates Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage.
- 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.
Code P129D Chevrolet Description
What are the Possible Causes of the DTC P129D Chevrolet?
- 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 P129D Chevrolet?
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.
Code Tech Notes
2016-2018 Chevrolet Silverado 1500
2019 Chevrolet Silverado LD
Dead Battery / P1682 P129D P10E4 P2535 / Crank No Start
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P129D Chevrolet 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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Information for Specific Chevrolet Models
- P129D 2014 Chevrolet Silverado — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage
- P129D 2015 Chevrolet Silverado — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage
- P129D 2016 Chevrolet Silverado — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage
- P129D 2017 Chevrolet Silverado — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage
- P129D 2018 Chevrolet Silverado — Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage
Frequently Asked Questions about P129D Chevrolet Code
1. What are common symptoms of OBDII code P129D in a Chevrolet related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage?
- Common symptoms include difficulty starting the vehicle, engine stalling, and issues with fuel delivery.
2. What are possible causes of the P129D code in a Chevrolet related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage?
- Possible causes include a faulty fuel pump driver control module, issues with the ignition switch, wiring problems, or a low voltage condition.
3. How can I diagnose the P129D code in a Chevrolet related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage?
- Diagnosis typically involves checking the fuel pump driver control module for proper function, inspecting the ignition switch, and testing the voltage in the circuit.
4. Can I drive my Chevrolet with the P129D code related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage?
- It is not recommended to drive the vehicle with this code as it can lead to potential issues with fuel delivery and engine performance.
5. How can I repair the P129D code in a Chevrolet related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage?
- Repair may involve replacing the fuel pump driver control module, addressing any wiring issues, or fixing problems with the ignition switch.
6. Is it safe to continue driving my Chevrolet if the P129D code related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage keeps coming back after repairs?
- It is best to address the issue promptly to prevent potential damage to the fuel system or other components of the vehicle.
7. Are there any DIY tips for fixing the P129D code in a Chevrolet related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage?
- DIY tips may include checking and cleaning the electrical connections, inspecting the wiring for damage, and ensuring proper voltage supply to the fuel pump driver control module.
8. How much does it typically cost to repair the P129D code in a Chevrolet related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage?
- Repair costs can vary depending on the specific cause of the issue, but it may involve replacing the fuel pump driver control module or addressing wiring problems.
9. Will resetting the OBDII code P129D related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage make it go away permanently?
- Resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to return.
10. Can a mechanic easily fix the P129D code related to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage in a Chevrolet?
- A mechanic with experience in diagnosing and repairing electrical issues should be able to effectively address the P129D code in a Chevrolet.
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