Engine-CodesChevrolet – P0273 2016 Chevrolet Silverado

P0273 2016 Chevrolet Silverado Code - Cylinder 5 Injector Control Circuit Low Voltage

Quick Answer

The diagnostic trouble code (DTC) P0273 for a 2016 Chevrolet Silverado refers to an issue with the Cylinder 5 Injector Control Circuit showing low voltage. Common causes include Faulty fuel injector in cylinder 5, Damaged wiring or connector related to the fuel injector, ECM malfunction. 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
P0273 2016 Chevrolet Silverado indicates Cylinder 5 Injector Control Circuit Low Voltage.
Common causes
Common causes include Faulty fuel injector in cylinder 5, Damaged wiring or connector related to the fuel injector, ECM malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0273 2016 Chevrolet Silverado Description

The diagnostic trouble code (DTC) P0273 for a 2016 Chevrolet Silverado refers to an issue with the Cylinder 5 Injector Control Circuit showing low voltage. This code indicates that the engine control module (ECM) has detected a lower than expected voltage from the fuel injector in cylinder 5.

OBDII Code P0273 2016 Chevrolet Silverado - Cylinder 5 Injector Control Circuit Low Voltage
P0273 2016 Chevrolet Silverado Code - Cylinder 5 Injector Control Circuit Low Voltage

Common Causes of P0273 2016 Chevrolet Silverado

  1. Faulty fuel injector in cylinder 5
  2. Damaged wiring or connector related to the fuel injector
  3. ECM malfunction
  4. Fuel injector driver failure within the ECM

Symptoms of P0273 2016 Chevrolet Silverado

  1. Reduced engine performance
  2. Rough idling or engine misfires
  3. Decreased fuel efficiency
  4. Engine stalling
  5. Check Engine Light illuminated on the dashboard

How to Fix P0273 2016 Chevrolet Silverado

  1. Begin by conducting a visual inspection of the wiring and connector for the fuel injector in cylinder 5 to check for any damage or corrosion. Repair or replace as needed.
  2. Test the fuel injector using a multimeter to ensure it is functioning properly. Replace the injector if it is faulty.
  3. Check the ECM for any fault codes related to injector control circuits and address any other issues that may be present.
  4. If the ECM is determined to be the issue, it may need to be reprogrammed or replaced.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0273 2016 Chevrolet Silverado

The cost of repairing a Cylinder 5 Injector Control Circuit Low Voltage issue in a 2016 Chevrolet Silverado can vary depending on the specific cause of the problem. On average, the cost for parts such as a new fuel injector or ECM can range from $200 to $600. Labor costs can add an additional $100 to $300. Overall, the total repair cost could be between $300 and $900. It is important to note that these are rough estimates, and actual costs can vary based on factors such as location, labor rates, and the extent of the repairs needed. It is advisable to consult with a trusted mechanic or auto repair shop for a more accurate cost estimate.

Tech Notes for P0273 2016 Chevrolet Silverado

A clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.

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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 P0273 2016 Chevrolet Silverado Code

1. What does the OBDII code P0273 mean on a 2016 Chevrolet Silverado?

P0273 indicates a Cylinder 5 Injector Control Circuit Low Voltage, meaning the ECM has detected an issue with the electrical circuit controlling the fuel injector for cylinder 5.

2. What are the common symptoms of code P0273 in a 2016 Chevrolet Silverado?

Symptoms may include a rough idle, misfires, reduced engine performance, poor fuel economy, and a check engine light.

3. What causes code P0273 on a 2016 Chevrolet Silverado?

Common causes include a faulty fuel injector, damaged or corroded wiring, poor electrical connections, a failed ECM, or a blown fuse.

4. Can I drive my 2016 Chevrolet Silverado with code P0273?

It’s not recommended to drive with this code, as it can lead to engine misfires, poor performance, and potential damage to other components if left unresolved.

5. How is code P0273 diagnosed on a 2016 Chevrolet Silverado?

A technician will inspect the wiring and connectors for damage, test the injector’s resistance, check the ECM’s output, and verify the circuit voltage using a multimeter.

6. How do I fix code P0273 on my 2016 Chevrolet Silverado?

Repairs may involve replacing the faulty fuel injector, repairing damaged wiring or connectors, replacing a blown fuse, or in rare cases, replacing the ECM.

7. What tools are needed to fix code P0273 on a 2016 Chevrolet Silverado?

Tools may include a multimeter, diagnostic scanner, wiring repair tools, and possibly a fuel injector removal kit.

8. How much does it cost to fix code P0273 on a 2016 Chevrolet Silverado?

Costs vary depending on the issue, but replacing a fuel injector typically costs $200-$500, while wiring repairs might be less expensive.

9. Can a dirty fuel injector cause code P0273 on a 2016 Chevrolet Silverado?

A dirty fuel injector is less likely to cause a low voltage circuit issue, but it’s always good to clean injectors as part of regular maintenance.

10. Will replacing the ECM fix code P0273 on a 2016 Chevrolet Silverado?

Replacing the ECM is a last resort and should only be done after verifying all other components, as ECM failure is rare for this code.

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