AutoCodesChevrolet – P1434 2016 Chevrolet Silverado

P1434 2016 Chevrolet Silverado Code - Fuel Level Sensor 1 Reference Performance

Quick Answer

The signal circuit is connected to the Fuel Pump Driver Control Module, the control module communicates with the Engine Control Module (ECM) via serial data. Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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
P1434 2016 Chevrolet Silverado indicates Fuel Level Sensor 1 Reference Performance.
Common causes
Common causes include Faulty Fuel Pump Driver Control Module, Fuel Pump Driver Control Module harness is open or shorted, Fuel Pump Driver 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 279
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 13, 2022
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Code P1434 2016 Chevrolet Silverado Description

The signal circuit is connected to the Fuel Pump Driver Control Module, the control module communicates with the Engine Control Module (ECM) via serial data. The Diagnostic Trouble Code (DTC) will be set when invalid data is received from the Fuel Pump Control Module.
OBDII Code P1434 2016 Chevrolet Silverado - Fuel Level Sensor 1 Reference Performance - AutoCodes.com
P1434 2016 Chevrolet Silverado Code - Fuel Level Sensor 1 Reference Performance

What are the Possible Causes of the DTC P1434 2016 Chevrolet Silverado?

  • Faulty Fuel Pump Driver Control Module
  • Fuel Pump Driver Control Module harness is open or shorted
  • Fuel Pump Driver Control Module circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P1434 2016 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 P1434 2016 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.

Need more information about the P1434 2016 Chevrolet Silverado code?

Need more information on how to fix the P1434 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P1434 2016 Chevrolet Silverado Code

What does the OBDII code P1434 mean on a 2016 Chevrolet Silverado?

The P1434 code indicates an issue with the Fuel Level Sensor 1 Reference Performance, meaning the sensor's signal is out of the expected range.

What are the common symptoms of code P1434 in a 2016 Chevrolet Silverado?

Symptoms may include an erratic or inaccurate fuel gauge, a check engine light, and difficulty determining the remaining fuel level.

What causes the P1434 code to appear on a 2016 Chevrolet Silverado?

Common causes include a faulty fuel level sensor, damaged wiring or connectors in the fuel level sensor circuit, or a malfunctioning fuel pump module.

Can a bad fuel level sensor trigger the P1434 code?

Yes, a malfunctioning or failing fuel level sensor is a primary cause of the P1434 code.

How can I diagnose the P1434 code on my Silverado?

Start by scanning for codes, inspecting the fuel level sensor wiring and connectors for damage, and testing the sensor's resistance using a multimeter.

Is it safe to drive with a P1434 code on a 2016 Chevrolet Silverado?

While the vehicle may still operate, it’s not recommended to ignore the code as it can lead to inaccurate fuel readings and potential running out of fuel unexpectedly.

How do I fix the P1434 code on my 2016 Chevrolet Silverado?

Repairs may involve replacing the fuel level sensor, repairing damaged wiring or connectors, or replacing the fuel pump module if necessary.

How much does it cost to fix the P1434 code on a Silverado?

The cost depends on the issue, but replacing the fuel level sensor typically costs between $200 and $500, including parts and labor.

Can a software update fix the P1434 code on a 2016 Silverado?

In some cases, a software update for the engine control module (ECM) may resolve the issue if it's related to calibration.

Will a faulty fuel pump cause the P1434 code in a 2016 Chevrolet Silverado?

A faulty fuel pump is less common but could potentially cause the code if it impacts the fuel level sensor's functionality.

Discuss the causes and fixes for P1434 2016 Chevrolet Silverado OBDII Code

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