AutoCodes – Chevrolet – P124D 2017 Chevrolet Silverado

P124D 2017 Chevrolet Silverado Code - Injector 6 Positive Voltage 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 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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: P124D 2017 Chevrolet Silverado indicates Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit.
Common causes: Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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 369

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 P124D 2017 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 P124D 2017 Chevrolet Silverado - Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit - AutoCodes.com — P124D 2017 Chevrolet Silverado Code - Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit

What does this mean?

What are the Possible Causes of the DTC P124D 2017 Chevrolet Silverado?

Faulty Fuel Injector 6
Fuel Injector 6 harness is open or shorted
Fuel Injector 6 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P124D 2017 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 P124D 2017 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 P124D 2017 Chevrolet Silverado code?

Need more information on how to fix the P124D 2017 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 P124D 2017 Chevrolet Silverado Code

1. What does the OBDII code P124D mean on a 2017 Chevrolet Silverado?

P124D indicates that the positive voltage control circuit for fuel injector 6 is shorted to its control circuit, causing improper injector operation.

2. What are common symptoms of code P124D in a 2017 Silverado?

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

3. What causes the P124D code to appear?

Common causes include damaged wiring or connectors, a short circuit in the injector 6 control circuit, a faulty injector, or issues with the engine control module (ECM).

4. Can I drive my 2017 Chevrolet Silverado with code P124D?

Driving with code P124D is not recommended as it can lead to poor engine performance, potential damage to the catalytic converter, and increased emissions.

5. How do I diagnose the P124D code on my Silverado?

Start by visually inspecting the wiring and connectors for injector 6. Use a multimeter to check for shorts or opens in the circuit, and test the injector for proper resistance and function.

6. What tools are needed to fix the P124D code?

You may need a diagnostic scanner, multimeter, wiring repair tools, and possibly a replacement fuel injector if itâ€™s faulty.

7. How much does it cost to repair the P124D code?

Repair costs can vary depending on the issue, ranging from $50 to $150 for wiring repairs, or $200 to $500+ if the injector or ECM needs replacement.

8. Can a bad ECM cause the P124D code?

Yes, a malfunctioning engine control module (ECM) can cause this code if it fails to properly control the injector circuit.

9. How can I prevent the P124D code from returning?

Regularly inspect and maintain your Silveradoâ€™s wiring and connectors, and address any engine performance issues promptly to avoid circuit-related faults.

10. Will clearing the P124D code fix the problem?

Clearing the code may temporarily turn off the check engine light, but it wonâ€™t resolve the underlying issue, which must be repaired to prevent the code from returning.