Without Telematics

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 MICROPHONE SIGNAL CIRCUIT CONTINUITY

Turn ignition switch OFF.
Disconnect display control unit connector M93 and microphone connector.

Check continuity between display control unit connector M93 and microphone connector R109.

Display control unit		Microphone		Continuity
Connector	Terminal	Connector	Terminal
M93	39	R109	5	Yes
	42		2
	61		1
	62		4

Check continuity between display control unit connector M93 and ground.

Display control unit		Ground	Continuity
Connector	Terminal
M93	39	--	No
	42
	61
	62

Is inspection result normal?

YES

GO TO 2.

Repair or replace harness or connectors.

CHECK MICROPHONE VCC VOLTAGE

Connect display control unit connector M93.
Turn ignition switch ON.

Check voltage between terminals of display control unit connector M93.

Display control unit connector M93		Voltage (Approx.)
(+)	(-)
Terminal	Terminal
62	42	5.0 V

Is the inspection result normal?

YES

GO TO 3.

Replace display control unit. Refer to Removal and Installation .

CHECK MICROPHONE SIGNAL

Connect microphone connector.

Check signal between terminals of display control unit connector M93.

Display control unit connector M93		Condition	Reference value
(+)	(-)
Terminal	Terminal
61	42	Speak into microphone.	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Replace display control unit. Refer to Removal and Installation .

Replace microphone. Refer to Removal and Installation .