P124B 2016 Chevrolet Silverado Code - Injector 4 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 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 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
- P124B 2016 Chevrolet Silverado indicates Injector 4 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 4, Fuel Injector 4 harness is open or shorted, Fuel Injector 4 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.
Code P124B 2016 Chevrolet Silverado Description
What are the Possible Causes of the DTC P124B 2016 Chevrolet Silverado?
- Faulty Fuel Injector 4
- Fuel Injector 4 harness is open or shorted
- Fuel Injector 4 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P124B 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 P124B 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.
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Frequently Asked Questions about P124B 2016 Chevrolet Silverado Code
What does the OBDII code P124B mean for a 2016 Chevrolet Silverado?
The code P124B indicates that the Injector 4 Positive Voltage Control Circuit is shorted to the control circuit, which can affect the operation of the fuel injector.
What are the common symptoms of code P124B in a 2016 Chevrolet Silverado?
Symptoms may include rough idling, poor engine performance, reduced fuel efficiency, misfires, or the Check Engine Light turning on.
What causes the P124B code to appear in a 2016 Chevrolet Silverado?
Common causes include damaged wiring or connectors near Injector 4, a faulty Injector 4, a defective engine control module (ECM), or a short circuit in the injector control circuit.
How can I diagnose the P124B code on my 2016 Chevrolet Silverado?
Start by inspecting the wiring and connectors for Injector 4, checking for signs of damage or corrosion. Use a multimeter to test for continuity and verify that there are no short circuits.
Can I drive my 2016 Chevrolet Silverado with a P124B code?
Driving with this code is not recommended, as it can lead to poor engine performance, reduced fuel efficiency, and potential long-term damage to the engine or catalytic converter.
How do I fix the P124B code on a 2016 Chevrolet Silverado?
Repairs may include repairing or replacing damaged wiring or connectors, replacing Injector 4 if it's faulty, or reprogramming or replacing the ECM if necessary.
How much does it cost to fix a P124B code on a 2016 Chevrolet Silverado?
Repair costs vary, but diagnosing and repairing wiring issues may cost $100–$300, while replacing the fuel injector could cost $200–$500, depending on labor rates.
Can a P124B code be caused by a problem with the ECM?
Yes, a malfunctioning ECM can cause the P124B code if it fails to properly control the voltage to Injector 4.
What tools are needed to troubleshoot the P124B code on a 2016 Chevrolet Silverado?
You’ll need a diagnostic scanner, a multimeter for electrical testing, and basic hand tools to inspect and repair wiring or replace components.
What should I do if the P124B code returns after repairs?
If the code returns, recheck the wiring and connections for Injector 4, ensure the injector is functioning properly, and consider testing or replacing the ECM.
Discuss the causes and fixes for P124B 2016 Chevrolet Silverado OBDII Code
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