AutoCodes – Chevrolet – P124F 2016 Chevrolet Silverado

P124F 2016 Chevrolet Silverado Code - Cylinder 8 Injector High Control Circuit Shorted to Control Circuit

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. Common causes include Faulty Fuel Injector 8, Fuel Injector 8 harness is open or shorted, Fuel Injector 8 circuit poor electrical connection. 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: P124F 2016 Chevrolet Silverado indicates Cylinder 8 Injector High Control Circuit Shorted to Control Circuit.
Common causes: Common causes include Faulty Fuel Injector 8, Fuel Injector 8 harness is open or shorted, Fuel Injector 8 circuit poor electrical connection.
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 506

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Aug 12, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P124F 2016 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. The ECM energizes each fuel injector by grounding the high voltage control circuit of the fuel injector. The ECM monitors the status of the injector high voltage supply circuits and the fuel injector high voltage control 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 if the ECM detects the injector high control circuit is shorted to the low control circuit for greater than 2 s.

OBDII Code P124F 2016 Chevrolet Silverado - Cylinder 8 Injector High Control Circuit Shorted to Control Circuit - AutoCodes.com — P124F 2016 Chevrolet Silverado Code - Cylinder 8 Injector High Control Circuit Shorted to Control Circuit

What does this mean?

What are the Possible Causes of the DTC P124F 2016 Chevrolet Silverado?

Faulty Fuel Injector 8
Fuel Injector 8 harness is open or shorted
Fuel Injector 8 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P124F 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P124F 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 P124F 2016 Chevrolet Silverado code?

Need more information on how to fix the P124F 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P124F 2016 Chevrolet Silverado Code

1. What does the OBDII code P124F mean on a 2016 Chevrolet Silverado?

P124F indicates that the Cylinder 8 Injector High Control Circuit is shorted to the control circuit, meaning there is an electrical issue in the injector system for cylinder 8.

2. What are the common symptoms of the P124F code in a 2016 Silverado?

Symptoms may include poor engine performance, rough idling, reduced fuel efficiency, misfires in cylinder 8, and possibly an illuminated check engine light.

3. What causes the P124F code to appear?

Common causes include damaged or shorted wiring to the cylinder 8 fuel injector, a faulty injector, a bad ECM (engine control module), or corroded electrical connections.

4. Can I drive my 2016 Chevrolet Silverado with a P124F code?

Driving with this code is not recommended, as it can lead to poor performance, increased emissions, and potential damage to the engine over time.

5. How do I diagnose the P124F code in my Silverado?

Start by inspecting the wiring and connectors for cylinder 8â€™s injector for damage or corrosion. Use a multimeter to test the circuit and check the injectorâ€™s resistance. If no issues are found, the ECM may need testing.

6. How can I repair the P124F code on my Silverado?

Repairs may involve replacing damaged wiring, cleaning or repairing corroded connectors, replacing the cylinder 8 fuel injector, or reprogramming or replacing the ECM if itâ€™s faulty.

7. How much does it cost to fix the P124F code on a 2016 Silverado?

Repair costs vary but generally range from $250 to $700, depending on whether the issue is with the wiring, injector, or ECM.

8. Can a clogged fuel injector cause the P124F code?

No, this code specifically refers to an electrical short in the injector circuit, not mechanical issues like clogging.

9. Will clearing the P124F code with a scanner fix the issue?

Clearing the code may turn off the check engine light temporarily, but the underlying problem must be addressed to prevent the code from returning.

10. Is the P124F code specific to Chevrolet Silverado trucks?

While the code can appear on other vehicles, it is specific to General Motors vehicles and refers to cylinder 8â€™s fuel injector circuit in this context.