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THROTTLE POSITION (TP) SENSOR CONSTRUCTION/OPERATION

BHE014018910T02

• The sensor is built into the throttle body and detects the throttle valve opening angle.

1 | Valve body
2 | Throttle valve
3 | TP sensor

• The Hall element design has been adopted for the sensor.

• A non contact type sensor has been adopted to improve durability.

• The TP sensor is composed of the main sensor and sub sensor, and detects the throttle valve opening angle with these two sensors (main and sub).

• Even if a malfunction occurs in either one of the sensors, the detection is performed with a normal sensor and drive-by-wire control is maintained.

• If both the MAIN and SUB sensors for the TP sensor malfunction, signals necessary for the drive-by-wire control are not input to the PCM and the drive-by-wire control is disabled.

• However, even though the drive-by-wire control is disabled, the throttle valve opening angle necessary for minimum driving is maintained mechanically.

TP Sensor Voltage Characteristics

1 | TP sensor
2 | Hall element sensor
3 | Magnet
4 | PCM
5 | Sub
6 | CPU
7 | Main
8 | High
9 | Voltage
10 | Low
11 | Small
12 | Throttle valve opening angle
13 | Large
14 | Sub sensor
15 | Main sensor