Engine Light ON (or Service Engine Soon Warning Light),No Accelerator Pedal response
P2122 HYUNDAI Possible Causes
Faulty Accelerator Pedal Position,Accelerator Pedal Position harness is open or shorted,Accelerator Pedal Position circuit poor electrical connection,Faulty Engine Control Module (ECM)
P2122 HYUNDAI Description
The Acceleration position Sensor (APS) measures driver’s acceleration intention using a potentiometer and APS signal is transmitted to the Powertrain Control Module (PCM). The pedal’s position is converted as voltage of potentiometer in the APS. The absence of a mechanical link between the accelerator pedal and throttle valve presents a risk of loss of control of the engine in the event of a failure of the component. Therefore, APS has two potentiometer whose slides are mechanical solid. APS 2 decides whether or not APS 1 & @ is faulty.
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