Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

CHECK UART COMMUNICATION LINE CONTINUITY

Turn ignition switch OFF.
Disconnect driver seat control unit and automatic drive positioner control unit.

Check continuity between driver seat control unit harness connector and automatic drive positioner control unit harness connector.

Fig 1: Checking UART Communication Line Continuity

Courtesy of NISSAN NORTH AMERICA, INC.

Driver seat control unit connector	Terminal	Automatic drive positioner control unit connector	Terminal	Continuity
B202	1	M33	10	Yes
B202	17	M33	26	Yes

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

Driver seat control unit connector	Terminal	Ground	Continuity
B202	1		No
	17

Is the inspection result normal?

YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

NO: Repair or replace harness.