P1225

P1225 TP Sensor

Component Description

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle position sensor responds to the throttle valve movement.





The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

On Board Diagnosis Logic

The MIL will not illuminate for this diagnosis.






DTC Confirmation Procedure

NOTE:

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next step.

1 Turn ignition switch OFF and wait at least 10 seconds.
2 Turn ignition switch ON.
3 Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
1) Turn ignition switch ON.
2) Turn ignition switch OFF and wait at least 10 seconds.
3) Turn ignition switch ON.
4) Check 1st trip DTC.
5) If 1st trip DTC is detected, go to "Diagnosis Procedure".

Diagnosis Procedure

1. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1 Turn ignition switch OFF.
2 Remove the intake air duct.
3 Check if foreign matter is caught between the throttle valve and the housing.






OK or NG
OK
GO TO 2.
NG
Remove the foreign matter and clean the electric throttle control actuator inside, and then perform throttle valve closed position learning. Refer to [Throttle Valve Closed Position Learning] Throttle Valve Closed Position Learning.

2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1 Replace the electric throttle control actuator. Refer to [Intake Manifold Collector: Exploded View] Intake Manifold Collector Exploded View.
2 Perform [Throttle Valve Closed Position Learning] Throttle Valve Closed Position Learning.
3 Perform [Idle Air Volume Learning] Idle Air Volume Learning.


INSPECTION END