P124B 2015 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 2015 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 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC P124B 2015 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 2015 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 2015 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 2015 Chevrolet Silverado Code
1. What does the OBDII code P124B mean on a 2015 Chevrolet Silverado?
P124B indicates that the Injector 4 Positive Voltage Control Circuit is shorted to the control circuit, causing an issue with fuel delivery to the engine.
2. What are the common symptoms of code P124B on a 2015 Silverado?
Symptoms may include poor engine performance, rough idling, misfires, reduced fuel efficiency, or a check engine light.
3. What causes the P124B code to appear on a 2015 Chevrolet Silverado?
Common causes include damaged wiring or connectors in the injector circuit, a faulty injector, or a malfunctioning Engine Control Module (ECM).
4. Can a bad injector cause the P124B code on my Silverado?
Yes, a malfunctioning Injector 4 can cause this code by disrupting the voltage control circuit.
5. How do I diagnose code P124B on my 2015 Chevrolet Silverado?
Start by visually inspecting the wiring and connectors for damage, test the injector for proper operation, and use a multimeter to check circuit continuity.
6. Can I drive my 2015 Silverado with code P124B?
Driving with this code is not recommended as it can lead to further engine damage or poor performance due to improper fuel delivery.
7. How can I fix the P124B code on my 2015 Chevrolet Silverado?
Repairs may include fixing or replacing damaged wiring, replacing Injector 4, or repairing or reprogramming the ECM if necessary.
8. How much does it cost to repair the P124B code on a Silverado?
Repair costs depend on the issue but can range from $100 for wiring repairs to $600 or more for injector replacement.
9. Can a software issue in the ECM cause the P124B code?
Yes, a software glitch or malfunction in the ECM could potentially trigger this code, though it is less common.
10. Should I clear the P124B code after repairs on my Silverado?
Yes, after completing repairs, clear the code with an OBDII scanner and test drive the vehicle to ensure the issue is resolved.
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