P0279 2016 Chevrolet Silverado Code - Cylinder 7 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 7, Faulty Fuel Injector 7, Plugged Fuel Injector 7. 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
- P0279 2016 Chevrolet Silverado indicates Cylinder 7 Injector Control Circuit Low Voltage.
- Common causes
- Common causes include Dirty Fuel Injector 7, Faulty Fuel Injector 7, Plugged Fuel Injector 7.
- 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 P0279 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0279 2016 Chevrolet Silverado?
- Dirty Fuel Injector 7
- Faulty Fuel Injector 7
- Plugged Fuel Injector 7
- Fuel injector 7 harness is open or shorted
- Fuel injector 7 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0279 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 P0279 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 P0279 2016 Chevrolet Silverado code?
Need more information on how to fix the P0279 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0279 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0279 2016 Chevrolet Silverado Code
1. What does the OBDII code P0279 mean on a 2016 Chevrolet Silverado?
P0279 indicates a "Cylinder 7 Injector Control Circuit Low Voltage," meaning the engine control module (ECM) has detected a low voltage issue in the circuit controlling the fuel injector for cylinder 7.
2. What are the symptoms of code P0279 on a 2016 Chevrolet Silverado?
Common symptoms include rough idling, misfires, reduced engine performance, poor fuel economy, and possibly an illuminated check engine light.
3. What causes the P0279 code to appear on a 2016 Silverado?
Possible causes include a faulty fuel injector, damaged wiring or connectors in the injector circuit, a malfunctioning ECM, or low battery voltage.
4. How do I diagnose the P0279 code on my 2016 Chevrolet Silverado?
Start by inspecting the wiring and connectors for cylinder 7’s fuel injector. Check for loose connections, corrosion, or damaged wires. Use a multimeter to measure voltage and continuity in the injector circuit.
5. Can a bad fuel injector cause the P0279 code?
Yes, a faulty or clogged fuel injector can cause the ECM to detect low voltage in the injector circuit, triggering the P0279 code.
6. Is it safe to drive a 2016 Chevrolet Silverado with the P0279 code?
While the vehicle may still be drivable, driving with this code can lead to reduced engine performance, increased emissions, and potential damage to the engine over time.
7. How do I fix the P0279 code on a 2016 Silverado?
Repairs may involve replacing the faulty injector, repairing or replacing damaged wiring or connectors, or addressing a malfunctioning ECM if necessary.
8. Can a weak battery cause the P0279 code?
Yes, low battery voltage or a failing alternator can contribute to low voltage issues in the injector circuit, potentially triggering the P0279 code.
9. How much does it cost to fix a P0279 code on a 2016 Chevrolet Silverado?
Repair costs can vary widely. Replacing a fuel injector may cost $150–$300, while wiring repairs or ECM replacement can be more expensive, depending on the extent of the issue.
10. Do I need a professional mechanic to fix the P0279 code?
While experienced DIYers may be able to handle basic wiring repairs or injector replacement, complex issues like ECM diagnosis and programming typically require a professional mechanic.
Discuss the causes and fixes for P0279 2016 Chevrolet Silverado OBDII Code
Code P0279 2016 Chevrolet Silverado 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.
