P1226

P1226, P1235 TP SENSOR

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 two sensors. These sensors are a kind of potentiometer which transform the throttle valve position into output voltage, and emit the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these signals and controls the throttle valve opening angle properly in response to driving condition via the throttle control motor.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
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.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn ignition switch ON.
2.Turn ignition switch OFF and wait at least 10 seconds.
3.Turn ignition switch ON.
4.Repeat steps 2 and 3 for 32 times.
5.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


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 (1)
and the housing.
Is the inspection result normal?
YES- GO TO 2.
NO- 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 : Special
Repair Requirement".

2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.Replace malfunctioning electric throttle control actuator. Refer to "Exploded View" Exploded View.
2.Go to "Special Repair Requirement" .
- INSPECTION END


Special Repair Requirement


1. PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement" Special Repair Requirement
- GO TO 2.

2. PERFORM IDLE AIR VOLUME LEARNING

Refer to "IDLE AIR VOLUME LEARNING : Special Repair Requirement" Special Repair Requirement
- END