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2013 Ford F-150 Throttle Pedal Sensor Fault: P0122, P0223, and P0112 Codes Explained

Model: F-150 Fault Code: P2177 Posted: 2019-01-31 10:31

I'm looking for clarification on whether my 2013 Ford F-150 has actual pedal sensors in the gas pedal. I've been experiencing diagnostic trouble codes P0122 (Throttle Position Sensor A Circuit Low Voltage), P0223 (Throttle Actuator Control Circuit High Voltage), and P0112 (Manifold Absolute Pressure/Barometric Pressure Sensor 'A' Circuit Low Input). After replacing the throttle body assembly a few weeks ago, I'm still seeing these codes. The truck has been driving fine recently—driving it for about 10 miles with a reset, then up and down blocks without any issues—but I'm concerned about whether the underlying sensor issue is resolved or if I need to replace the pedal sensors themselves. My question: Do 2013 F-150s have dedicated gas pedal position sensors? If so, do they fail independently, or are they part of an assembly that needs replacement? How can I confirm which component is causing these codes and prevent the truck from entering limp mode again?

Related fault codes
P2177
Comments (3)
Anonymous 2019-02-02 13:41

Just saw your post—have you managed to resolve the issue with your 2013 F-1-than? Any updates on the sensor replacement or code clearing?

Anonymous 2019-02-02 13:45

Most 2013 Ford F-150 models are equipped with two pedal position sensors, connected via six wires: two reference voltages at 5V, two signal wires, and two ground connections. You can verify this using an OBD-II scanner like Alldata or similar systems. These sensors typically come as a complete assembly and should be replaced together if faulty.

Anonymous 2019-02-05 10:38

I replaced the throttle body about three weeks ago and have driven it occasionally, but only short distances. The OBD-II scanner still shows P0122 (low voltage) and another code indicating high voltage in the throttle actuator circuit—plus a persistent 'throttle actuator stuck closed' issue. I haven't been driving it much recently due to safety concerns, even though no immediate symptoms have appeared. I'm just worried about a recurrence.