P124A Code: Meaning, Causes, and Symptoms | OBD2 Codes

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


P124A Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


P124A Possible Causes


Faulty Fuel Injector,Fuel Injector harness is open or shorted,Fuel Injector circuit poor electrical connection


P124A Description


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