Automatic Drive Positioner (DTC/Circuit Diagnosis)

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SEAT MEMORY SWITCH SIGNAL

Turn ignition switch OFF.
Disconnect seat memory switch.
Turn ignition switch ON.
Check voltage between seat memory switch harness connector and ground.

(+)		(-)	Voltage (V) (Approx.)
Seat memory switch
Connector	Terminals
D60	2	Ground	5
	10
	16

Is the inspection result normal?

YES

GO TO 3.

GO TO 2.

CHECK MEMORY SWITCH CIRCUIT

Turn ignition switch OFF.
Disconnect driver seat control unit.

Check continuity between driver seat control unit harness connector and seat memory switch harness connector.

Driver seat control unit		Seat memory switch		Continuity
Connector	Terminal	Connector	Terminal
B209	11	D60	16	Yes
	21		2
	27		10

Check continuity between driver seat control unit harness connector and ground.

Driver seat control unit		Ground	Continuity
Connector	Terminal
B209	11		No
	21
	27

Is the inspection result normal?

YES

Replace driver seat control unit. Refer to Removal and Installation .

Repair or replace harness.

CHECK MEMORY SWITCH GROUND CIRCUIT

Check continuity between seat memory switch harness connector and ground.

Seat memory switch		Ground	Continuity
Connector	Terminal
D60	9		Yes

Is the inspection result normal?

YES

GO TO 4.

Repair or replace harness.

CHECK SEAT MEMORY SWITCH
Refer to Component Inspection .

Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

Replace seat memory switch. Refer to Removal and Installation .