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AutoCodes – Chevrolet – P0273 2014 Chevrolet Silverado

P0273 2014 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 2014 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.
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Code Popularity 426
How popular is this code, among other codes? Low
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Table of contents Created and updated by William Orellana on Mar 23, 2024
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Code P0273 2014 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 2014 Chevrolet Silverado - Cylinder 5 Injector Control Circuit Low Voltage - AutoCodes.com
P0273 2014 Chevrolet Silverado Code - Cylinder 5 Injector Control Circuit Low Voltage
What does this mean?

What are the Possible Causes of the DTC P0273 2014 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 2014 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.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0273 2014 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 2014 Chevrolet Silverado code?

Need more information on how to fix the P0273 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the 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 2014 Chevrolet Silverado Code

What does the OBDII code P0273 mean on a 2014 Chevrolet Silverado?

Code P0273 indicates a low voltage issue in the control circuit for Cylinder 5's fuel injector.

What are the common symptoms of code P0273 in a 2014 Chevrolet Silverado?

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

What causes the P0273 code in a 2014 Chevrolet Silverado?

Common causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a bad ECM (Engine Control Module), or corroded electrical connections.

How can I diagnose the P0273 code on my Chevrolet Silverado?

Start by inspecting the wiring and connectors for Cylinder 5's injector, test the injector's resistance with a multimeter, and check the ECM for proper operation.

Can I drive my Silverado with a P0273 code?

Driving with a P0273 code is not recommended, as it can lead to engine misfires, reduced performance, and potential damage to other components.

How do I fix the P0273 code on my 2014 Chevrolet Silverado?

Repairs may involve replacing the faulty injector, repairing or replacing damaged wiring or connectors, or updating or replacing the ECM if necessary.

How much does it cost to fix the P0273 code on a Chevrolet Silverado?

Repair costs vary, but replacing a fuel injector typically costs $150–$300 in parts, plus labor, while wiring or ECM repairs may add to the expense.

Can a dirty fuel injector cause the P0273 code?

Yes, a clogged or dirty fuel injector can cause low voltage issues and trigger the P0273 code.

What tools are needed to diagnose the P0273 code?

You’ll need an OBDII scanner, a multimeter, and basic tools for inspecting and repairing wiring or connectors.

Can a bad ECM cause the P0273 code in my Silverado?

Yes, a malfunctioning ECM can fail to properly control the injector circuit and may cause the P0273 code.

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