P0122 Ford - Throttle/Pedal Position Sensor 'A' Circuit Low Input
- Faulty throttle position sensor.
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
When is the code detected?
The Throttle Position Sensor (TPS) signal 1 circuit has reported an open or low voltage
- Engine Light ON (or Service Engine Soon Warning Light)
P0122 Ford Description
The throttle position sensor (TPS) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
FORD Technical Service Bulletins for P0122 code
2002 FORD EXCURSION Vehicle Speed Control:accelerator Pedal Details
2002 FORD F SUPER DUTY Vehicle Speed Control:accelerator Pedal Details
2003 FORD EXCURSION Vehicle Speed Control:accelerator Pedal Details
2003 FORD F SUPER DUTY Vehicle Speed Control:accelerator Pedal Details
2002 FORD F SUPER DUTY Electrical System Details
2000 FORD FOCUS Unknown Or Other Details
2001 FORD FOCUS Unknown Or Other Details
2002 FORD FOCUS Unknown Or Other Details
2000 FORD FOCUS 980000 Unknown Or Other Details
2001 FORD FOCUS 980000 Unknown Or Other Details
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