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Engine-Codes – Chevrolet – P216B 2014 Chevrolet Silverado

P216B 2014 Chevrolet Silverado Code - Cylinder 5 Injector High Control Circuit Low Voltage

Quick Answer

The P216B diagnostic trouble code for a 2014 Chevrolet Silverado specifically relates to the Cylinder 5 Injector High Control Circuit Low Voltage. Common causes include Faulty Fuel Injector: The fuel injector in cylinder 5 may be malfunctioning or clogged, affecting fuel delivery, Wiring Issues: There could be a break or short in the wiring connecting the fuel injector to the PCM, Malfunctioning PCM: The powertrain control module may be sending incorrect signals to the fuel injector. 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
P216B 2014 Chevrolet Silverado indicates Cylinder 5 Injector High Control Circuit Low Voltage.
Common causes
Common causes include Faulty Fuel Injector: The fuel injector in cylinder 5 may be malfunctioning or clogged, affecting fuel delivery, Wiring Issues: There could be a break or short in the wiring connecting the fuel injector to the PCM, Malfunctioning PCM: The powertrain control module may be sending incorrect signals to the fuel injector.
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 12, 2024
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Code P216B 2014 Chevrolet Silverado Description

The P216B diagnostic trouble code for a 2014 Chevrolet Silverado specifically relates to the Cylinder 5 Injector High Control Circuit Low Voltage. This code indicates that the powertrain control module (PCM) has detected a low voltage condition in the control circuit for the fuel injector in cylinder 5. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time to ensure efficient engine operation. When the control circuit voltage is too low, it can lead to issues with fuel delivery, combustion, and overall engine performance.

OBDII Code P216B 2014 Chevrolet Silverado - Cylinder 5 Injector High Control Circuit Low Voltage
P216B 2014 Chevrolet Silverado Code - Cylinder 5 Injector High Control Circuit Low Voltage

Common Causes of P216B 2014 Chevrolet Silverado

  1. Faulty Fuel Injector: The fuel injector in cylinder 5 may be malfunctioning or clogged, affecting fuel delivery.
  2. Wiring Issues: There could be a break or short in the wiring connecting the fuel injector to the PCM.
  3. Malfunctioning PCM: The powertrain control module may be sending incorrect signals to the fuel injector.
  4. Poor Connection: A loose or corroded connection in the injector control circuit can lead to low voltage.

Symptoms of P216B 2014 Chevrolet Silverado

  1. Misfires: The vehicle may experience misfires, especially during acceleration or under load.
  2. Rough Idling: The engine may idle roughly or inconsistently, causing vibrations and noise.
  3. Poor Acceleration: The vehicle may struggle to accelerate smoothly or quickly.
  4. Decreased Fuel Efficiency: The vehicle may consume more fuel than usual due to improper fuel delivery.
  5. Engine Stalling: The engine may stall unexpectedly, particularly at idle or when coming to a stop.

How to Fix P216B 2014 Chevrolet Silverado

  1. Diagnose the Issue: Use a scan tool to retrieve the trouble code and perform a thorough inspection of the fuel injector and control circuit.
  2. Test the Fuel Injector: Check the resistance and operation of the fuel injector in cylinder 5 to determine if it is functioning correctly.
  3. Inspect Wiring: Examine the wiring harness for any damage or corrosion, repairing or replacing any affected sections.
  4. Check PCM: Test the powertrain control module to ensure it is sending the correct signals to the fuel injector.
  5. Clear Codes and Test Drive: After making the necessary repairs, clear the trouble codes, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P216B 2014 Chevrolet Silverado

The typical repair costs for addressing a P216B code on a 2014 Chevrolet Silverado can vary depending on the exact cause of the issue. However, as a rough estimate, the repair for this problem could range from $200 to $500, including parts and labor. It's essential to keep in mind that specific diagnosis time and labor rates at auto repair shops can fluctuate based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher at dealerships or in metropolitan areas, while independent shops might offer lower prices. For a more accurate estimate, it's advisable to inquire about local rates before proceeding with the repair.

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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 P216B 2014 Chevrolet Silverado Code

1. What does the OBDII code P216B mean on a 2014 Chevrolet Silverado?

P216B indicates a problem with the Cylinder 5 Injector High Control Circuit, specifically a low voltage condition.

2. What are the common symptoms of code P216B?

Symptoms may include rough idling, misfires, reduced engine performance, poor fuel economy, and an illuminated check engine light.

3. What causes the P216B code to appear?

Common causes include a faulty fuel injector, damaged or corroded wiring, a bad injector driver in the engine control module (ECM), or loose electrical connections.

4. Can you drive with a P216B code on a 2014 Silverado?

While the vehicle may still run, driving with this code can lead to further engine damage or poor performance, so it’s best to address the issue promptly.

5. How do you diagnose a P216B code?

Start by inspecting the wiring and connectors for Cylinder 5, testing the fuel injector for proper operation, and using a multimeter to check for circuit continuity.

6. How can you fix the P216B code?

Repairs may involve replacing the Cylinder 5 fuel injector, repairing or replacing damaged wiring, or reprogramming or replacing the ECM if it’s faulty.

7. How much does it cost to fix a P216B code?

Costs vary depending on the issue, but replacing a fuel injector typically costs $200–$400 in parts and labor.

8. Can a dirty fuel injector cause a P216B code?

A dirty or clogged fuel injector is unlikely to cause a low voltage code, but it’s still worth cleaning or inspecting the injector during troubleshooting.

9. What tools are needed to troubleshoot a P216B code?

You’ll need an OBDII scanner, a multimeter, and possibly a noid light to test the fuel injector circuit.

10. Could a bad ECM cause the P216B code?

Yes, a malfunctioning ECM or its injector driver circuit can be a possible cause of the code if other components check out fine.

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