P0222 Code - Throttle/Petal Position Sensor/Switch 'B' Circuit Low Input

Discussion in 'P - Powetrain Codes' started by fault code, Dec 18, 2017.

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    fault code Administrator Staff Member

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    What Does P0222 Mean?

    The manufacturer specifies a range of acceptable voltage to be produced from the throttle position sensor. The P0222 code is an indication that the voltage produced by the throttle position sensor has been the detected by the Engine Control Module (ECM) to have fallen below this specification.

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    What are the common causes of P0222 ?

    The most common causes of code P0222 could include the following-
    • Damaged, short circuited, or corroded wiring and connectors
    • Defective TPS or pedal sensors
    • Mal-adjusted TPS sensors
    • Mechanical wear in the TPS sensor and/or throttle body
    • Carbon deposits in the throttle body that impede the movement of the throttle plate
    • While PCM failures do happen, it is a rare event and the fault must be sought elsewhere before any controller is replaced
    How do you troubleshoot P0222 ?

    While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0222 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

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