P129E 2015 Chevrolet Silverado Code - Fuel Pump Driver Control Module Signal Message Counter Incorrect
Quick Answer
The Fuel Pump Power Control Module is constantly sending serial data messages to 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
- P129E 2015 Chevrolet Silverado indicates Fuel Pump Driver Control Module Signal Message Counter Incorrect.
- 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 P129E 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P129E 2015 Chevrolet Silverado?
- 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 P129E 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 P129E 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.
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Frequently Asked Questions about P129E 2015 Chevrolet Silverado Code
1. What does the P129E code mean on a 2015 Chevrolet Silverado?
The P129E code indicates an issue where the Fuel Pump Driver Control Module signal message counter is incorrect, often due to communication errors between the module and the vehicle's engine control unit (ECU).
2. What are common symptoms of the P129E code?
Symptoms may include difficulty starting the engine, reduced fuel efficiency, hesitation during acceleration, or the check engine light illuminating.
3. What causes the P129E code to appear?
The code can be triggered by a faulty fuel pump driver control module, wiring issues, poor electrical connections, or software errors in the ECU.
4. Can I drive my 2015 Chevrolet Silverado with the P129E code?
While the vehicle may still be drivable, ignoring the code can lead to further fuel delivery issues or engine performance problems, so prompt diagnosis and repair are recommended.
5. How is the P129E code diagnosed?
A mechanic will typically use a scan tool to read the code, inspect the fuel pump driver control module, check wiring and connectors, and test communication signals between components.
6. How can I fix the P129E code on my Silverado?
Repairs may include replacing the fuel pump driver control module, repairing or replacing damaged wiring, ensuring secure electrical connections, or updating the ECU software.
7. What is the Fuel Pump Driver Control Module’s role in the Silverado?
The module regulates fuel pump operation by communicating with the ECU to ensure proper fuel delivery based on engine demands.
8. Can a weak battery cause the P129E code?
Yes, insufficient voltage or electrical power can disrupt communication between the Fuel Pump Driver Control Module and the ECU, potentially triggering the code.
9. Is the P129E code covered under warranty for a 2015 Chevrolet Silverado?
It depends on the warranty coverage and mileage of the vehicle; consult your owner's manual or dealer to confirm.
10. How much does it cost to repair the P129E code?
Repair costs vary depending on the issue but typically range from $150 to $500, depending on whether the module needs replacement or wiring repairs are required.
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