P0273 2016 GMC Sierra 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 GMC Sierra 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.
Code P0273 2016 GMC Sierra Description
What are the Possible Causes of the DTC P0273 2016 GMC Sierra?
- 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 GMC Sierra?
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 GMC Sierra 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 GMC Sierra code?
Need more information on how to fix the P0273 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0273 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0273 2016 GMC Sierra Code
What does the OBDII code P0273 mean on a 2016 GMC Sierra?
P0273 indicates a "Cylinder 5 Injector Control Circuit Low Voltage," meaning the engine control module (ECM) detects insufficient voltage in the injector circuit for cylinder 5.
What are the common symptoms of a P0273 code?
Symptoms may include rough idling, reduced engine performance, misfires in cylinder 5, poor fuel economy, and the check engine light illuminating.
What causes the P0273 code to appear?
Common causes include a faulty fuel injector, damaged or corroded wiring in the injector circuit, a bad connector, or a malfunctioning ECM.
Can I drive my 2016 GMC Sierra with a P0273 code?
Driving with a P0273 code is not recommended, as it can cause poor engine performance and potential damage to the engine or catalytic converter over time.
How can I diagnose a P0273 code?
Start by inspecting the wiring and connectors for cylinder 5’s fuel injector for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.
How do I fix the P0273 code on my GMC Sierra?
Repairs may include replacing the faulty fuel injector, repairing damaged wiring or connectors, cleaning corroded connections, or, in rare cases, replacing the ECM.
What tools do I need to fix the P0273 code?
You’ll typically need a diagnostic scanner, a multimeter, and basic automotive tools for inspecting and repairing wiring or replacing the fuel injector.
How much does it cost to fix the P0273 code?
The cost depends on the root cause. Replacing a fuel injector can cost $150–$400, while wiring repairs might cost less. ECM replacement could be $500 or more.
Can a dirty fuel injector cause the P0273 code?
Yes, a dirty or clogged fuel injector can cause low voltage issues, leading to the P0273 code. Cleaning or replacing the injector may resolve the issue.
Does the P0273 code always mean the fuel injector is bad?
No, the code can also result from wiring issues, connector problems, or even a faulty ECM. Proper diagnosis is essential to identify the exact cause.
Discuss the causes and fixes for P0273 2016 GMC Sierra OBDII Code
Code P0273 2016 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
