[SOLVED] P124A Code: Fix Injector 3 Voltage Short Circuit With Control Circuit

The automobile fault code P124A indicates a problem with Fuel Injector 3.

This can cause the Engine Light to turn on or the Service Engine Soon Warning Light to illuminate.

The possible causes include a faulty Fuel Injector 3, an open or shorted harness, a poor electrical connection in the Fuel Injector 3 circuit, or a faulty Engine Control Module (ECM). To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins. The repair time for this issue is estimated to be 1.0.

It is important to address this fault code promptly to prevent further damage to the engine.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p124a fault code.

  • The symptoms of the automobile fault code p124a include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p124a can be caused by a faulty fuel injector 3, an open or shorted harness, a poor electrical connection in the fuel injector 3 circuit, or a faulty Engine Control Module (ECM).

  • The fault code p124a can be caused by: a faulty Fuel Injector 3, an open or shorted harness for Fuel Injector 3, a poor electrical connection in the Fuel Injector 3 circuit, or a faulty Engine Control Module (ECM).

To fix the automobile fault code p124a, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p124a, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The automobile fault code p124a has an estimated repair time of 1.0 hour.

Auto repair shops typically charge between $75 and $150 per hour for this type of repair.

The P124A fault code indicates that there is a problem with the positive voltage control circuit of injector 3 in your vehicle. The Engine Control Module (ECM) supplies voltage to each fuel injector, and it monitors the status of the injector high voltage supply circuits. When the ECM detects that the injector high control circuit is shorted to the low control circuit for more than 2 seconds, it disables the affected fuel injector(s) and sets the DTC.

In simpler terms, this fault code means that there is a short circuit in the control circuit of injector 3, which is preventing it from functioning properly.

It is important to address this issue as soon as possible to ensure the optimal performance of your vehicle’s fuel injection system.

What are the possible causes of the automobile fault code p124a?

If you’re seeing the fault code P124A on your automobile, it’s likely that your engine light or service engine soon warning light is on. This code is often caused by a faulty fuel injector 3, an open or shorted fuel injector 3 harness, a poor electrical connection in the fuel injector 3 circuit, or a faulty engine control module (ECM). To fix this issue, you should visually inspect the wiring harness and connectors, checking for any damage or broken, bent, pushed out, or corroded pins. It’s also important to address any of the possible causes mentioned above.

How can I visually inspect the wiring harness and connectors to fix the p124a fault code?

If you’re dealing with the p124a fault code and your engine light is on, it’s time to take action. The most common cause is a faulty fuel injector 3 or issues with the wiring harness and connectors. To fix it, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken or corroded pins. This simple step can help you identify and resolve the issue. Don’t delay, get to the bottom of the problem and get your engine running smoothly again.

What should I look for when checking for damaged components and connector’s pins to resolve the p124a fault code?

When resolving the p124a fault code, start by checking for damaged components and connector’s pins. This can be done by visually inspecting the related wiring harness and connectors. Look for any signs of damage such as broken, bent, pushed out, or corroded pins. By doing so, you can identify any issues with the fuel injector 3 or its circuitry, as well as potential problems with the Engine Control Module (ECM). Don’t forget to address any open or shorted harnesses and poor electrical connections.

p124a error fault code explained

If you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty Fuel Injector 3, an open or shorted harness, a poor electrical connection in the circuit, or a faulty Engine Control Module (ECM). To fix it, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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