P124A GMC – Injector 3 Positive Control Voltage Circuit Shorted to Control Circuit

P124A GMC Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Poor electrical connection in the fuel injector circuit
 

How is the P124A GMC code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

 
 

Possible Symptoms

  • Engine light on (or maintenance engine warning light soon)
 

P124A GMC Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high voltage injector supply circuits. The ECM powers each fuel injector by grounding the high voltage fuel injector control circuit. The ECM monitors the status of the high voltage injector supply circuits and the high voltage fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector or injectors are deactivated.

P124B – Injector 4 Positive Control Circuit Shorted to Control Circuit

P124B Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or short-circuited
  • Poor electrical connection of the fuel injector circuit

How is the P124B code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or maintenance engine warning light soon)

P124B Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high voltage supply circuits of the injectors. The ECM powers each fuel injector by grounding the high voltage control circuit of the fuel injector. The ECM monitors the status of the injectors’ high voltage supply circuits and the fuel injectors’ high voltage control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector or injectors are deactivated.

P124B CHEVROLET – Injector 4 Positive Control Voltage Circuit Shorted to Control Circuit

P124B CHEVROLET Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Poor electrical connection in the fuel injector circuit

How is the P124B CHEVROLET code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or soon-to-be maintenance engine warning light)

P124B CHEVROLET Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high-pressure fuel injector supply circuits. The ECM powers each fuel injector by grounding the high-pressure fuel injector control circuit. The ECM monitors the status of the high-pressure fuel injector supply circuits and the high-pressure fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector or injectors are deactivated.

P124B GMC – Injector 4 Positive Control Voltage Circuit Shorted to Control Circuit

P124B GMC Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Poor electrical connection in the fuel injector circuit

How is the P124B GMC code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or maintenance engine warning light soon)

P124B GMC Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high voltage fuel injector supply circuits. The ECM powers each fuel injector by grounding the high voltage fuel injector control circuit. The ECM monitors the status of the high voltage fuel injector supply circuits and high voltage fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector or injectors are deactivated.

P124C – Injector 5 Positive Control Circuit Voltage Shorted to Control Circuit

P124C Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or short-circuited
  • Poor electrical connection of the fuel injector circuit

How is P124C Code Repair Performed?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or maintenance engine warning light soon)

P124C Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high voltage injector supply circuits. The ECM powers each fuel injector by grounding the high voltage fuel injector control circuit. The ECM monitors the status of the high voltage injector supply circuits and high voltage fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) are deactivated.

P124C BMW – Nitrogen Oxide Sensor Operational Readiness Signal Not Available at Startup

P124C BMW Possible Causes

  • Faulty NOx sensor
  • NOx sensor wiring harness is open or short-circuited
  • Poor electrical connection in the NOx sensor circuit
 

How is BMW P124C Code Repair Performed?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

 
 

Possible Symptoms

  • Check engine light on (or maintenance engine warning light soon)
 

P124C BMW Meaning

The engine control module (ECM) monitors the NOx sensor. The ECM sets the OBDII code when the NOx sensor does not meet factory specifications.

P124C CHEVROLET – Injector 5 Positive Control Circuit Shorted to Control Circuit

P124C CHEVROLET Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Poor electrical connection in the fuel injector circuit

How is the P124C CHEVROLET code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or maintenance engine warning light soon)

P124C CHEVROLET Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high voltage fuel injector supply circuits. The ECM powers each fuel injector by grounding the high voltage fuel injector control circuit. The ECM monitors the status of the high voltage fuel injector supply circuits and high voltage fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector or injectors are deactivated.

P124C GMC – Injector 5 Positive Control Circuit Shorted to Control Circuit

P124C GMC Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or shorted
  • Poor electrical connection in the fuel injector circuit
 

How is GMC P124C Code Repair Performed?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

 
 

Possible Symptoms

  • Engine light on (or maintenance engine warning light soon)
 

P124C GMC Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high voltage injector supply circuits. The ECM powers each fuel injector by grounding the high voltage fuel injector control circuit. The ECM monitors the status of the high voltage injector supply circuits and high voltage fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) are disabled.

P124C MINI – Nitrogen Oxide Sensor Operational Readiness Signal Not Available at Startup

P124C MINI Possible Causes

  • Faulty NOx sensor
  • NOx sensor wiring harness is open or short-circuited
  • Poor electrical connection in the NOx sensor circuit
 

How is P124C MINI Code Repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

 
 

Possible Symptoms

  • Check Engine Light on (or Service Engine Soon warning light)
 

P124C MINI Meaning

The Engine Control Module (ECM) monitors the NOx sensor. The ECM sets the OBDII code when the NOx sensor does not meet factory specifications.

P124D – Injector 6 Positive Control Circuit Voltage Shorted to Control Circuit

P124D Possible Causes

  • Faulty fuel injector
  • Fuel injector harness is open or short-circuited
  • Poor electrical connection of the fuel injector circuit

How is the P124D code repaired?

Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

  • Engine light on (or maintenance engine warning light soon)

P124D Meaning

The Engine Control Module (ECM) provides voltage to each fuel injector on the high voltage fuel injector supply circuits. The ECM powers each fuel injector by grounding the high voltage fuel injector control circuit. The ECM monitors the status of the high voltage fuel injector supply circuits and the high voltage fuel injector control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector or injectors are deactivated.