Diagnosis Procedure

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT

Turn ignition switch OFF.
Disconnect electric throttle control actuator harness connector.
Disconnect ECM harness connector.

Check the continuity between electric throttle control actuator harness connector and ECM harness connector.

Electric throttle control actuator		ECM		Continuity
Connector	Terminal	Connector	Terminal
F50	2	F79	150	Existed
			149	Not existed
	1		150	Not existed
			149	Existed

Also check harness for short to power and short to ground.

Is the inspection result normal?

YES

GO TO 2.

Repair or replace error-detected parts.

CHECK THROTTLE CONTROL MOTOR
Check the throttle control motor. Refer to Component Inspection .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace electric throttle control actuator. Refer to INTAKE MANIFOLD COLLECTOR .