2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 625
1. Turn ignition switch OFF.
2. Disconnect electric throttle control actuator harness connector.
3. Disconnect ECM harness connector.
4. Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
5. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES - GO TO 10.
NO - Repair or replace malfunctioning part.
10.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Remove the intake air duct.
2. Check if foreign matter is caught between the throttle valve (1) and the housing.
Is the inspection result normal?
YES - GO TO 11.
NO - Remove the foreign matter and clean the electric throttle control actuator inside.
11.CHECK THROTTLE CONTROL MOTOR
See: P Code Charts/P1233.
Is the inspection result normal?
YES - GO TO 12.
NO - GO TO 13.
12.CHECK INTERMITTENT INCIDENT
See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Trouble
Diagnosis For Intermittent Incident/Description.
Is the inspection result normal?
YES - GO TO 13.
NO - Repair or replace harness or connectors.
13.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace malfunction electric throttle control actuator.
2. Go to See: P Code Charts/P1233.
- INSPECTION END
Component Inspection
1.CHECK THROTTLE CONTROL MOTOR
1. Turn ignition switch OFF.
2. Disconnect electric throttle control actuator harness connector.
3. Check resistance between electric throttle control actuator terminals as per the following.
