AutoCodes – Chevrolet – P124D 2016 Chevrolet Silverado

P124D 2016 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 2016 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 541

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 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 P124D 2016 Chevrolet Silverado - Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit - AutoCodes.com — P124D 2016 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 2016 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 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 P124D 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 P124D 2016 Chevrolet Silverado 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 P124D 2016 Chevrolet Silverado Code

What does OBDII code P124D mean for a 2016 Chevrolet Silverado?

P124D indicates that the Injector 6 Positive Voltage Control Circuit has a short between the control circuit and positive voltage, affecting the performance of injector 6.

What are common symptoms of code P124D in a 2016 Chevrolet Silverado?

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

What causes the P124D code to appear?

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

How can I diagnose the P124D code?

Start by visually inspecting the wiring and connectors for injector 6, checking for damage or corrosion. Use a multimeter to test for continuity or shorts in the circuit.

Can a faulty injector cause the P124D code?

Yes, a malfunctioning injector 6 can cause the circuit to short, triggering the P124D code. Testing or replacing the injector may resolve the issue.

Can I drive with the P124D code active?

Driving with this code can cause further damage to the engine or catalytic converter and should be addressed as soon as possible.

How do I fix the P124D code on a 2016 Chevrolet Silverado?

Repairs may include repairing or replacing damaged wiring or connectors, replacing injector 6, or reprogramming or replacing the ECM if necessary.

Is the P124D code specific to injector 6?

Yes, this code specifically refers to a fault in the voltage control circuit for injector 6.

How much does it cost to fix the P124D code?

Repair costs vary, but replacing an injector typically costs $250â€“$600, while fixing wiring or connectors may cost less depending on the severity of the damage.

Can low fuel quality cause the P124D code?

Low fuel quality is unlikely to cause this specific code, but it can contribute to injector issues over time. Use high-quality fuel to prevent related problems.