THROTTLE POSITION (TP) SENSOR

The TP Sensor is a variable resistor type that rotates with the throttle body shaft to sense the throttle valve angle. As the throttle shaft rotates, the output voltage of the TP Sensor changes. The ECM detects the throttlevalve opening based on voltage change.

CIRCUIT DIAGRAM
SENSOR CHECKING
Using HI-SCAN

Check item

Data display

Check conditions

Throttle valve

Test specification

Throttle position sensor

Sensor voltage

Ignition switch : ON

At idle position

250~800 mV

Open slowly

Increases with valve opening

Open widely

4700~5200 mV

USING VOLTMETER
1.

Disconnect the throttle position sensor connector.

2.

Measure resistance between terminal 2 (sensor ground) and terminal 1 (sensor power).

Standard value : 3.5 ~ 6.5 kΩ

3.

Connect a pointer type ohmmeter between terminal 2 (sensor ground) and terminal 3 (sensor output).

4.

Operate the throttle valve slowly from the idle position to the full open position and check that the resistance changes smoothly in proportionwith the throttle valve opening angle.

5.

If the resistance is out of specification, or fails to change smoothly, replace the throttle position sensor.

Tightening torque

TP Sensor : 1.5~2.5 Nm (15~25 kg·cm, 1.1~1.8 lb·ft)

HARNESS INSPECTION PROCEDURE
TROUBLESHOOTING HINTS
Яндекс.Метрика