AutoCodesChevrolet – P0273 2016 Chevrolet Silverado

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

Quick Answer

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. Common causes include Dirty Fuel Injector 5, Faulty Fuel Injector 5, Plugged Fuel Injector 5. 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 Dirty Fuel Injector 5, Faulty Fuel Injector 5, Plugged Fuel Injector 5.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 315
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 23, 2024
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Code P0273 2016 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to each Fuel Injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the fuel injector control circuit is shorted to ground for greater than 2 s.
OBDII Code P0273 2016 Chevrolet Silverado - Cylinder 5 Injector Control Circuit Low Voltage - AutoCodes.com
P0273 2016 Chevrolet Silverado Code - Cylinder 5 Injector Control Circuit Low Voltage

What are the Possible Causes of the DTC P0273 2016 Chevrolet Silverado?

  • Dirty Fuel Injector 5
  • Faulty Fuel Injector 5
  • Plugged Fuel Injector 5
  • Fuel injector 5 harness is open or shorted
  • Fuel injector 5 circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0273 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0273 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 P0273 2016 Chevrolet Silverado code?

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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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