Throttle Position Sensor: Testing and Inspection

CIRCUIT DIAGRAM


SENSOR CHECKING





Using HI-SCAN





USING VOLTMETER
1. Disconnect the throttle position sensor connector.
2. Measure resistance between terminal 1 (sensor ground) and terminal 4 (sensor power) for 2.4 DOHC between terminal 2 (sensor ground) and terminal 3 (sensor power) for 2.5 V6.

Standard value 3.5-6.5 kOhm

3. Connect a pointer type ohmmeter between terminal 1 (sensor ground) and terminal 3 (sensor output) for 2.4 DOHC and between terminal 2 (sensor ground) and terminal 1 (sensor output) for 2.5 V6.
4. Operate the throttle valve slowly from the idle position to the full open position and check that the resistance changes smoothly in proportion with 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

TROUBLESHOOTING HINTS
The TP Sensor signal is important in the control of the automatic transaxle. Shift shock and other trouble will occur if the sensor is faulty.