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P16E4 2015 Chevrolet Silverado Code - Sensor Communication Circuit 3 Low Voltage

Quick Answer

The P16E4 code on a 2015 Chevrolet Silverado indicates a Sensor Communication Circuit 3 Low Voltage issue. Common causes include Faulty Sensor: The sensor connected to the communication circuit may be faulty or damaged, leading to incorrect voltage readings, Wiring or Connector Issues: Damaged wiring, poor connections, or corroded connectors in the communication circuit can disrupt the signal transmission, ECM Malfunction: A malfunctioning ECM can also cause communication errors between the sensor and the control module. 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 2015 Chevrolet Silverado indicates Sensor Communication Circuit 3 Low Voltage.
Common causes
Common causes include Faulty Sensor: The sensor connected to the communication circuit may be faulty or damaged, leading to incorrect voltage readings, Wiring or Connector Issues: Damaged wiring, poor connections, or corroded connectors in the communication circuit can disrupt the signal transmission, ECM Malfunction: A malfunctioning ECM can also cause communication errors between the sensor and the control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P16E4 2015 Chevrolet Silverado Description

The P16E4 code on a 2015 Chevrolet Silverado indicates a Sensor Communication Circuit 3 Low Voltage issue. This means that there is a problem with the communication circuit that connects a specific sensor to the vehicle's electronic control module (ECM). In this case, the low voltage reading suggests that the sensor is not sending the expected electrical signals to the ECM, which can disrupt the proper functioning of the vehicle's systems.

OBDII Code P16E4 2015 Chevrolet Silverado - Sensor Communication Circuit 3 Low Voltage
P16E4 2015 Chevrolet Silverado Code - Sensor Communication Circuit 3 Low Voltage

Common Causes of P16E4 2015 Chevrolet Silverado

  1. Faulty Sensor: The sensor connected to the communication circuit may be faulty or damaged, leading to incorrect voltage readings.
  2. Wiring or Connector Issues: Damaged wiring, poor connections, or corroded connectors in the communication circuit can disrupt the signal transmission.
  3. ECM Malfunction: A malfunctioning ECM can also cause communication errors between the sensor and the control module.
  4. Software Glitch: An issue with the vehicle's software or programming can interfere with the proper functioning of the sensor communication circuit.
  5. Environmental Factors: Exposure to moisture, extreme temperatures, or physical damage can also contribute to sensor communication circuit problems.

Symptoms of P16E4 2015 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with the P16E4 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Reduced Engine Performance: The vehicle may experience a decrease in power, acceleration, and overall engine performance.
  3. Rough Idling: The engine may idle roughly or inconsistently, indicating a problem with the sensor communication circuit.
  4. Stalling: The vehicle may stall unexpectedly, especially at low speeds or when coming to a stop.
  5. Poor Fuel Efficiency: A malfunctioning sensor communication circuit can lead to decreased fuel efficiency, causing the vehicle to consume more fuel than usual.

How to Fix P16E4 2015 Chevrolet Silverado

  1. Diagnose the Issue: Use an OBD-II scanner to retrieve the specific trouble code (P16E4) and perform a thorough inspection of the sensor, wiring, connectors, and ECM to identify the root cause of the problem.
  2. Replace the Sensor: If the sensor is found to be faulty, replace it with a new, OEM-approved sensor to ensure accurate data transmission to the ECM.
  3. Repair Wiring or Connectors: Repair or replace any damaged wiring or connectors in the communication circuit to restore proper signal transmission.
  4. Check ECM Functionality: Test the ECM for proper functionality and address any issues with the control module if necessary, such as reprogramming or replacement.
  5. Clear Codes and Test Drive: Clear the diagnostic trouble codes from the vehicle's computer, reset the system, and test drive the vehicle to ensure that the issue has been resolved and that no new symptoms arise.

Cost to Fix P16E4 2015 Chevrolet Silverado

The typical repair costs for addressing a P16E4 code on a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue and the necessary repairs. In general, the cost of replacing a sensor can range from $100 to $300, while repairing wiring or connectors may cost between $50 and $200. If the ECM needs to be replaced or reprogrammed, the cost can be higher, ranging from $200 to $500 or more. Labor costs can add an additional $80 to $150 per hour, depending on the shop's rates. Overall, the total repair cost for resolving a Sensor Communication Circuit 3 Low Voltage issue can range from $200 to $1000 or more, including parts and labor. It is advisable to consult with a certified mechanic or auto repair shop for a more accurate estimate based on the specific diagnosis and repair needs of your vehicle.

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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 P16E4 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P16E4 in a 2015 Chevrolet Silverado?

Common symptoms include poor engine performance, rough idling, reduced fuel efficiency, and the illumination of the Check Engine Light.

2. What does the OBDII code P16E4 for Sensor Communication Circuit 3 Low Voltage indicate in a 2015 Chevrolet Silverado?

This code indicates that there is low voltage detected in the communication circuit of sensor 3 in the vehicle.

3. What are the possible causes of OBDII code P16E4 in a 2015 Chevrolet Silverado?

Possible causes include damaged wiring or connectors, a faulty sensor, a malfunctioning powertrain control module (PCM), or a low battery voltage.

4. How can I diagnose and repair OBDII code P16E4 in my 2015 Chevrolet Silverado?

Diagnosing and repairing this code may involve checking the wiring and connectors for damage, testing the sensor's functionality, inspecting the PCM for faults, and ensuring the battery voltage is sufficient.

5. Can I continue driving my 2015 Chevrolet Silverado with OBDII code P16E4 present?

It is generally not recommended to continue driving with this code present, as it can lead to further damage to the vehicle and potentially worsen engine performance.

6. Will resetting the Check Engine Light resolve OBDII code P16E4 in a 2015 Chevrolet Silverado?

Resetting the Check Engine Light may temporarily turn it off, but it will not address the underlying issue causing the P16E4 code.

7. How much does it typically cost to repair OBDII code P16E4 in a 2015 Chevrolet Silverado?

The cost of repairing this code can vary depending on the specific cause, but it may range from around $100 to $500 or more, including parts and labor.

8. Can I use a generic OBDII scanner to clear the P16E4 code in my 2015 Chevrolet Silverado?

Yes, a generic OBDII scanner can be used to clear the code, but it is important to diagnose and address the root cause of the issue to prevent it from reoccurring.

9. Is OBDII code P16E4 a common issue in 2015 Chevrolet Silverado vehicles?

While it may not be as common as some other codes, P16E4 can still occur in 2015 Chevrolet Silverado vehicles due to various factors like sensor malfunctions or wiring issues.

10. How long does it typically take to repair OBDII code P16E4 in a 2015 Chevrolet Silverado?

The repair time for this code can vary depending on the exact cause and complexity of the issue, but it may take anywhere from a few hours to a full day at a repair shop.

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