Engine-Codes.com
Engine-Codes – Chevrolet – P216B 2018 Chevrolet Silverado

P216B 2018 Chevrolet Silverado Code - Cylinder 5 Injector High Control Circuit Low Voltage

Quick Answer

The P216B diagnostic trouble code (DTC) indicates that the Engine Control Module (ECM) has detected a low voltage condition in the control circuit for the fuel injector of cylinder 5. Common causes include Faulty fuel injector for cylinder 5, Damaged or corroded wiring in the injector control circuit, Poor electrical connections or loose connectors. 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 2018 Chevrolet Silverado indicates Cylinder 5 Injector High Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector for cylinder 5, Damaged or corroded wiring in the injector control circuit, Poor electrical connections or loose connectors.
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 Oct 07, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P216B 2018 Chevrolet Silverado Description

The P216B diagnostic trouble code (DTC) indicates that the Engine Control Module (ECM) has detected a low voltage condition in the control circuit for the fuel injector of cylinder 5. This code is part of the fuel injection system diagnostics and is crucial for maintaining optimal engine performance. When the ECM identifies a low voltage signal from the injector control circuit, it suggests that the injector may not be receiving adequate electrical power to operate correctly.

OBDII Code P216B 2018 Chevrolet Silverado - Cylinder 5 Injector High Control Circuit Low Voltage
P216B 2018 Chevrolet Silverado Code - Cylinder 5 Injector High Control Circuit Low Voltage

Common Causes of P216B 2018 Chevrolet Silverado

  1. Faulty fuel injector for cylinder 5.
  2. Damaged or corroded wiring in the injector control circuit.
  3. Poor electrical connections or loose connectors.
  4. Malfunctioning Engine Control Module (ECM).
  5. Issues with the power supply to the fuel injector, such as a blown fuse.

Symptoms of P216B 2018 Chevrolet Silverado

  1. Engine misfires or rough idling.
  2. Decreased engine performance and acceleration.
  3. Increased fuel consumption and poor fuel economy.
  4. Illuminated check engine light (CEL) on the dashboard.
  5. Unusual engine noises, such as knocking or pinging.

How to Fix P216B 2018 Chevrolet Silverado

  1. Visual Inspection: Start with a thorough visual inspection of the wiring and connectors associated with the cylinder 5 injector. Look for signs of damage, corrosion, or loose connections that could contribute to the low voltage condition.

  2. Electrical Testing: Use a multimeter to test the voltage at the injector connector while the engine is running. This will help determine if the injector is receiving the appropriate voltage. Check for continuity in the wiring harness to ensure there are no breaks or shorts.

Cost to Fix P216B 2018 Chevrolet Silverado

The cost to repair a P216B code can vary widely based on the specific issue identified during diagnosis. On average, the total repair costs can range from $150 to $600, depending on whether the problem is a simple wiring issue or a more complex injector replacement. Parts such as fuel injectors typically cost between $50 and $150 each, while labor costs can range from $80 to $150 per hour.

Need more information about the P216B 2018 Chevrolet Silverado code?

Need more information on how to fix the P216B 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P216B 2018 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 P216B 2018 Chevrolet Silverado Code

1. What does the OBDII code P216B on a 2018 Chevrolet Silverado indicate?

The code P216B indicates that there is an issue with the high control circuit of the cylinder 5 fuel injector, specifically indicating low voltage in the circuit.

2. What are the common symptoms of code P216B in a 2018 Chevrolet Silverado?

Symptoms can include a rough running engine, decreased fuel efficiency, an engine misfire, and a check engine light that is illuminated.

3. What can cause the P216B code to appear on a 2018 Chevrolet Silverado?

Potential causes include a faulty fuel injector, issues with the wiring or connectors leading to the injector (such as fraying or disconnections), or a problem with the engine control module (ECM).

4. How do I diagnose the P216B code in my 2018 Chevrolet Silverado?

Diagnosis should start with a visual inspection of the wiring and connectors for damage or loose connections. Next, the resistance and voltage of the fuel injector should be tested to ensure they are within specifications. Finally, ECM functionality may need to be assessed with specialized diagnostic tools.

5. How can I fix the P216B code in my 2018 Chevrolet Silverado?

Repairs might involve replacing the faulty injector, repairing or replacing damaged wiring or connectors, or in some cases, reprogramming or replacing the ECM.

6. Is it safe to drive my 2018 Chevrolet Silverado with the P216B code?

While you may be able to drive the vehicle, doing so with a misfiring cylinder can lead to further damage to the engine or other components. It is advisable to address the issue as soon as possible.

7. Will the P216B code clear on its own once repairs are made on my 2018 Chevrolet Silverado?

Yes, after the underlying issue is fixed, the code should clear. However, a diagnostic scanner may be needed to reset the check engine light and clear the code from the ECM memory.

8. What tools are necessary to diagnose the P216B code?

You will typically need a digital multimeter to test the electrical properties and a diagnostic scanner capable of interfacing with the vehicle’s ECM to read detailed fault codes and live data.

Discuss the causes and fixes for P216B 2018 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P216B 2018 Chevrolet Silverado comments

No comments found for this page.