Component Location
General Description

As closing or opening vacuum line from vacuum pump which is installed at the end of cam shaft, with the method of duty control, Throttle contor Actuator controls throttle flap valve when engine is turning OFF.

When turning engines OFF, Throttle flap valve cuts intake air to prevent overrun phenomena.(In spite of turning engine OFF, engine does not stop and runs for a while due to rotating inertia of engine and fuel leakage at injector nozzle. )

To check its operation, watch if it operate when turning engine OFF.

DTC Description

P2112 is set when "0"A in throttle contor actuator is detected for more than 0.11 sec. this code is due to 1)open or short to ground in control circuit or 2)internal open in actuator component.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

● Voltage monitoring

● Throttle contor actuator circuit

● Throttle contor actuator component

Enable Conditions

● IG KEY "ON"

Threshold Value

● Short to GND, Wiring open

Diagnostic Time

● 110ms

Fail Safe

Fuel Cut

NO

EGR Off

YES

Fuel Limit

NO

Check Lamp

NO

Specification

Throttle control actuator component resistance

Throttle control actuator operating Hz

Throttle control actuator operating duty

23.8~31.3Ω (20℃)

300Hz

38%(no vacuum)~90%(vacuum)

Schematic Diagram
Signal Waveform
Яндекс.Метрика