[SOLVED] P124B Code: Fix Injector 4 Shorted Control Circuit For Smooth Performance!

The automobile fault code P124B indicates a problem with Fuel Injector 4. This can be identified by the Engine Light or Service Engine Soon Warning Light being illuminated.

The cause of this fault code could be a faulty Fuel Injector 4, an open or shorted harness, a poor electrical connection in the circuit, or a faulty Engine Control Module (ECM). To fix this issue, it is recommended to visually inspect the wiring harness and connectors for any damage.

Look out for broken, bent, pushed out, or corroded pins in the connectors. The repair time for this issue is estimated to be around 1.0 hour.

It is important to address this fault code promptly to ensure optimal engine performance.

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

If you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to the p124b fault code.

  • The symptoms of the automobile fault code p124b include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p124b can be caused by a faulty fuel injector 4, an open or shorted harness for fuel injector 4, a poor electrical connection in the fuel injector 4 circuit, or a faulty Engine Control Module (ECM).

  • The fault code p124b can be caused by: a faulty Fuel Injector 4, an open or shorted harness for Fuel Injector 4, a poor electrical connection in the Fuel Injector 4 circuit, or a faulty Engine Control Module (ECM).

To fix the automobile fault code p124b, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p124b, 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 factors influencing the cost of diagnosing and fixing the automobile fault code p124b are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

The P124B fault code refers to a problem with the positive voltage control circuit of injector 4 in your vehicle. The Engine Control Module (ECM) supplies voltage to each fuel injector, and the ECM monitors the status of these circuits. If the ECM detects that the injector high control circuit is shorted to the low control circuit for more than 2 seconds, it will disable the affected fuel injector and set the P124B code.

This means that there is a short circuit in the control circuit of injector 4, causing it to malfunction.

It is important to address this issue promptly to ensure proper fuel injection and engine performance.

What are the possible causes of the automobile fault code P124b?

If you see the engine light on or the service engine soon warning light, the fault code P124b could be the culprit. This code is often caused by a faulty fuel injector 4, an open or shorted fuel injector 4 harness, a poor electrical connection in the fuel injector 4 circuit, or a faulty engine control module (ECM). To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors to fix the P124b fault code?

If you’re dealing with the P124b fault code and your engine light is on, it’s time to take action. The culprit could be a faulty fuel injector 4, an open or shorted fuel injector 4 harness, a poor electrical connection in the fuel injector 4 circuit, or even a faulty engine control module (ECM). To fix this issue, start by visually inspecting the wiring harness and connectors. Look for any signs of damage, such as broken, bent, pushed out, or corroded pins. Don’t delay – check these possible causes and get your engine back in top shape.

What should I look for when checking for damaged components and connector pins to resolve the P124b fault code?

When resolving the P124b fault code, start by checking for damaged components and connector pins. Visually inspect the wiring harness and connectors for any signs of damage. Look for broken, bent, pushed out, or corroded pins on the connectors. This can help identify if the issue lies with a faulty fuel injector, an open or shorted harness, a poor electrical connection, or a faulty Engine Control Module (ECM). Take the necessary steps to address these possible causes and ensure a proper fix.

p124b error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a faulty Fuel Injector 4, an open or shorted harness, a poor electrical connection in the Fuel Injector 4 circuit, or a faulty Engine Control Module (ECM). To fix this, visually inspect the wiring harness and connectors, checking for any damage or corrosion. Look out for broken, bent, pushed out, or corroded connector pins.

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