P129E 2014 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 2014 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 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P129E 2014 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 2014 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 2014 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 2014 Chevrolet Silverado Code
1. What does the OBDII code P129E mean on a 2014 Chevrolet Silverado?
The code P129E indicates that the Fuel Pump Driver Control Module (FPCM) has detected an incorrect message counter in its communication signal, likely due to a fault in the module or its wiring.
2. What are the common symptoms of the P129E code on a 2014 Silverado?
Common symptoms include difficulty starting, reduced engine performance, stalling, or a check engine light illumination.
3. What causes the P129E code to appear in a 2014 Chevrolet Silverado?
The most common causes are a malfunctioning Fuel Pump Driver Control Module, corrupted software, faulty wiring or connectors, or communication issues between the module and the Engine Control Module (ECM).
4. Can I drive my 2014 Silverado with the P129E code?
Driving with the P129E code is not recommended, as it could lead to further damage or cause the engine to stall unexpectedly.
5. How is the P129E code diagnosed on a 2014 Chevrolet Silverado?
A technician will use a scan tool to verify the code, inspect wiring and connectors for damage, and test the Fuel Pump Driver Control Module for proper operation.
6. How do you fix the P129E code on a 2014 Silverado?
Possible fixes include repairing or replacing damaged wiring, updating or reprogramming the Fuel Pump Driver Control Module software, or replacing the module if it is defective.
7. How much does it cost to repair the P129E code on a 2014 Chevrolet Silverado?
Repair costs can vary but typically range from $200 to $600, depending on whether the module needs reprogramming or replacement.
8. Can a bad fuel pump cause the P129E code on a 2014 Silverado?
A bad fuel pump is not a direct cause of the P129E code, but related electrical issues or communication errors with the Fuel Pump Driver Control Module could trigger it.
9. Do I need to replace the Fuel Pump Driver Control Module if I get a P129E code?
Not necessarily. The module may just need reprogramming, or the issue could be with the wiring or connectors. Proper diagnosis is essential.
10. Will clearing the P129E code fix the issue on a 2014 Chevrolet Silverado?
Clearing the code may turn off the check engine light temporarily, but without addressing the underlying problem, the code is likely to return.
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