2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 626
Is the inspection result normal?
YES - INSPECTION END
NO - GO TO 2.
2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace malfunctioning electric throttle control actuator.
2. Go to See: P Code Charts/P1233.
- INSPECTION END
Special Repair Requirement
1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Programming and Relearning/Throttle Valve Closed
Position Learning/Special Repair Requirement
- GO TO 2.
2.PERFORM IDLE AIR VOLUME LEARNING
See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine Performance Checks/Idle Speed/Testing and Inspection/Programming and
Relearning/Special Repair Requirement
- END
P1234
P1225, P1234 TP SENSOR
Description
Electric throttle control actuator consists of throttle control motor, throttle position (TP) 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 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.
