P124B 2017 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 2017 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 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P124B 2017 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 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 P124B 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 P124B 2017 Chevrolet Silverado code?
Need more information on how to fix the P124B 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P124B 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P124B 2017 Chevrolet Silverado Code
1. What does the OBDII code P124B mean for a 2017 Chevrolet Silverado?
P124B indicates that the Injector 4 Positive Voltage Control Circuit is shorted to the control circuit, which can cause issues with fuel injection for cylinder 4.
2. What are the common symptoms of code P124B in a 2017 Chevrolet Silverado?
Symptoms may include rough idling, reduced engine performance, misfires, poor fuel economy, and the Check Engine Light turning on.
3. What causes the P124B code to appear on a 2017 Chevrolet Silverado?
Common causes include damaged wiring, a short circuit in the injector 4 control circuit, a faulty fuel injector, or a malfunctioning engine control module (ECM).
4. Can I drive my 2017 Chevrolet Silverado with the P124B code?
Driving with this code is not recommended as it may cause engine misfires, reduced performance, and potential damage to other components over time.
5. How do I diagnose the P124B code on a 2017 Chevrolet Silverado?
Diagnosis involves inspecting the wiring and connectors for cylinder 4, testing the injector for proper operation, and using a multimeter to check for shorts or continuity issues.
6. How can I fix code P124B on my 2017 Chevrolet Silverado?
Repairs may include fixing or replacing damaged wiring, replacing the injector for cylinder 4, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to repair a P124B code on a 2017 Chevrolet Silverado?
Repair costs vary, but replacing an injector can cost $200–$400, while ECM repairs or replacements may range from $500–$1,500, depending on labor and parts.
8. Can a faulty fuel injector cause the P124B code?
Yes, a faulty injector for cylinder 4 can lead to this code by disrupting the voltage control circuit.
9. How do I prevent the P124B code from recurring on my 2017 Chevrolet Silverado?
Regular maintenance, inspecting wiring for damage, and addressing injector issues promptly can help prevent this code from returning.
10. Will clearing the P124B code with a scanner fix the issue?
Clearing the code may temporarily remove the Check Engine Light, but the underlying problem must be addressed to prevent the code from returning.
Discuss the causes and fixes for P124B 2017 Chevrolet Silverado OBDII Code
Code P124B 2017 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
