P129D 2015 Chevrolet Silverado Code - Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage
Quick Answer
The P129D diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage. Common causes include Faulty ignition on/start switch, Malfunctioning fuel pump driver module, Damaged wiring or connectors in the circuit. 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 2015 Chevrolet Silverado indicates Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage.
- Common causes
- Common causes include Faulty ignition on/start switch, Malfunctioning fuel pump driver module, Damaged wiring or connectors in the circuit.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P129D 2015 Chevrolet Silverado Description
The P129D diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado refers to the Fuel Pump Driver Control Module Ignition On/Start Switch Circuit Low Voltage. This code indicates a problem with the circuit that controls the fuel pump driver module and its interaction with the ignition on/start switch. In simpler terms, there is a low voltage issue in the circuit that manages the fuel pump driver module when the ignition is turned on or the vehicle is started.
Common Causes of P129D 2015 Chevrolet Silverado
- Faulty ignition on/start switch
- Malfunctioning fuel pump driver module
- Damaged wiring or connectors in the circuit
- Drained or weak battery
- Corrosion or moisture in the electrical system
Symptoms of P129D 2015 Chevrolet Silverado
- Difficulty starting the vehicle
- Engine stalling or rough idling
- Engine misfires
- Reduced fuel efficiency
- Illumination of the check engine light
How to Fix P129D 2015 Chevrolet Silverado
- Begin by diagnosing the specific cause of the low voltage issue using a diagnostic scanner to retrieve the DTC and checking the circuit for any visible damage.
- Test the ignition on/start switch to ensure it is functioning properly. Replace it if necessary.
- Inspect the fuel pump driver module for any signs of damage or malfunction. Replace it if needed.
- Check the wiring and connectors in the circuit for any corrosion, breaks, or loose connections. Repair or replace them as needed.
- Test the battery to ensure it is providing sufficient voltage to the circuit. Charge or replace the battery if it is weak or drained.
Cost to Fix P129D 2015 Chevrolet Silverado
The typical repair costs for addressing a P129D code in a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue and the parts and labor required for the repair. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $80 to $150 per hour. Overall, the total repair cost can amount to around $200 to $500, not including any diagnostic fees. It is advisable to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your location and vehicle specifics.
Need more information about the P129D 2015 Chevrolet Silverado code?
Need more information on how to fix the P129D 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P129D 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P129D 2015 Chevrolet Silverado Code
No Frequently Asked Questions about P129D 2015 Chevrolet Silverado Code found.
Discuss the causes and fixes for P129D 2015 Chevrolet Silverado OBDII Code
Code P129D 2015 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.