2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 242
4. Turn ignition switch ON.
5. Set selector lever position to D.
6. Check the voltage between ECM harness connector terminals under the following conditions.
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/P0122.
- 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
P0123
P0122, P0123, P0227, P0228 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 signal to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and controls
the throttle valve opening angle in response to driving conditions via the throttle control motor.
