AutoCodes – Chevrolet – P16E4 2016 Chevrolet Silverado

P16E4 2016 Chevrolet Silverado Code - Sensor Communication Circuit 3 Low Voltage

Quick Answer

The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted. 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: P16E4 2016 Chevrolet Silverado indicates Sensor Communication Circuit 3 Low Voltage.
Common causes: Common causes include Low or no fuel, Faulty Fuel Rail Pressure (FRP) Sensor, Fuel Rail Pressure harness is open or shorted.
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 307

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 30, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P16E4 2016 Chevrolet Silverado Description

The Engine Control Module (ECM) uses the Fuel Rail Pressure (FRP) sensor to constantly adjust the high-pressure fuel pump's feed rate so that the ideal pressure is permanently maintained in the high-pressure section (between the high-pressure fuel pump and the injectors) by means of closed-loop control. The fuel rail pressure sensor transmits fuel pressure and temperature information via serial data to the ECM. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The ECM controls the fuel pressure regulator, which regulates high-pressure fuel that goes to the fuel injector rails and the injectors. The Diagnostic Trouble Code (DTC) will be set if the Fuel Rail Pressure Sensor Signal is less than a predefined threshold for greater than 2.6 s.

OBDII Code P16E4 2016 Chevrolet Silverado - Sensor Communication Circuit 3 Low Voltage - AutoCodes.com — P16E4 2016 Chevrolet Silverado Code - Sensor Communication Circuit 3 Low Voltage

What does this mean?

What are the Possible Causes of the DTC P16E4 2016 Chevrolet Silverado?

Low or no fuel
Faulty Fuel Rail Pressure (FRP) Sensor
Fuel Rail Pressure harness is open or shorted
Fuel Rail Pressure circuit poor electrical connection
Faulty Fuel Pump

How to Fix the DTC P16E4 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 P16E4 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 P16E4 2016 Chevrolet Silverado code?

Need more information on how to fix the P16E4 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P16E4 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P16E4 2016 Chevrolet Silverado Code

1. What does OBDII code P16E4 mean for my 2016 Chevrolet Silverado?

The code P16E4 indicates a low voltage condition in Sensor Communication Circuit 3 of your vehicle.

2. What are the common symptoms of OBDII code P16E4 on a 2016 Chevrolet Silverado?

Common symptoms include poor engine performance, rough idling, and potential stalling of the vehicle.

3. What are the possible causes of OBDII code P16E4 on a 2016 Chevrolet Silverado?

Potential causes may include a faulty sensor, damaged wiring or connectors, low battery voltage, or issues with the engine control module.

4. How can I diagnose the OBDII code P16E4 on my 2016 Chevrolet Silverado?

Diagnosis typically involves using a scan tool to read the code, checking the sensor and its circuitry for damage, and testing the voltage levels in the circuit.

5. How can I repair OBDII code P16E4 on a 2016 Chevrolet Silverado?

Repairing the issue may involve replacing the faulty sensor, repairing damaged wiring or connectors, ensuring proper battery voltage, or reprogramming the engine control module.

6. Can I drive my 2016 Chevrolet Silverado with OBDII code P16E4?

It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety hazards.

7. Will OBDII code P16E4 cause my 2016 Chevrolet Silverado to fail an emissions test?

Yes, having this code stored in the vehicle's system may cause it to fail an emissions test due to improper sensor communication.

8. How much does it typically cost to repair OBDII code P16E4 on a 2016 Chevrolet Silverado?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

9. Can I reset OBDII code P16E4 on my 2016 Chevrolet Silverado without fixing the underlying issue?

While you can clear the code with a scan tool, it is recommended to diagnose and repair the problem to prevent further issues with your vehicle.

10. Is OBDII code P16E4 a common issue with 2016 Chevrolet Silverado trucks?

While it may not be extremely common, occurrences of this code have been reported in 2016 Chevrolet Silverado trucks, particularly related to sensor communication circuit faults.