THROTTLE POSITION (TP) SENSOR [SKYACTIV-G 2.5T]

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Purpose

•  The TP sensor detects the actual throttle valve opening angle.

Function

•  The TP sensor sends the throttle valve opening angle to the PCM as a throttle valve position signal.
•  For the throttle valve position signal, main (No.1) and sub (No.2) signals of different characteristics have been adopted to enhance sensor malfunction detection accuracy.

TP sensor characteristic

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Construction

•  The TP sensor is built into the throttle body and coaxially arranged with the throttle valve shaft.
•  Non-contact hall elements have been adopted for the detection area of the TP sensor.
•  The Hall elements detect the magnetic field which changes as the shaft rotates and outputs it as a voltage value.
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Operation

1.  The TP sensor detects (1) the throttle valve opening angle.

2.  The TP sensor sends (2) the detected throttle valve opening angle to the PCM as a throttle valve position main (No.1) and sub (No.2) signals.

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Fail-safe

DTC No.

Fail-safe function
P0122:00
•  Restricts the upper limit of the engine speed.
P0123:00
•  Restricts the upper limit of the engine speed.
•  PCM restricts engine torque.
P0222:00
•  Restricts the upper limit of the engine speed.
P0223:00
•  Restricts the upper limit of the engine speed.
P2101:00
•  Restricts the upper limit of the engine speed.
•  Stops the drive-by-wire control (throttle valve is open at approx. 8° by return spring force).
P2109:00
•  Restricts the upper limit of the engine speed.
•  Stops the drive-by-wire control (throttle valve is open at approx. 8° by return spring force).
P2135:00
•  Restricts the upper limit of the engine speed.
•  Stops the drive-by-wire control (throttle valve is open at approx. 8° by return spring force).