P1122 Lexus Electric Throttle Control Performance Problem
Possible causes
– Faulty Electric Throttle Control Actuator
– Electric Throttle Control Actuator harness is open or shorted
– Electric Throttle Control Actuator circuit poor electrical connection
– Electric Throttle Control Actuator harness is open or shorted
– Electric Throttle Control Actuator circuit poor electrical connection
Tech description
What about the obd code?
Electric throttle control function does not operate properly.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1122 Lexus Description
Electric Throttle Control Actuator consists of throttle control motor, Throttle Position Sensor (TPS), etc. The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throttle valve and feeds 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.
Lexus Vehicle:Lexus ES,Lexus GS,Lexus GX,Lexus HS,Lexus IS,Lexus LFA,Lexus LS,Lexus LX,Lexus RX,Lexus RX,Lexus SC,Lexus GS350,Lexus GS450H,Lexus IS250,Lexus GX460,Lexus IS350,Lexus LS460,Lexus LS600H,Lexus LX570,Lexus RX350