Check Intelligent Key Unit Power Supply and Ground Circuit

1. Turn ignition knob OFF position.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit connector and ground.
   Fig 1: Identifying Voltage Between Intelligent Key Unit Harness Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   POWER SUPPLY CIRCUIT
   
   

   Connector	Terminal (Wire color)		Ignition knob position
   M34	(+)	(-)	OFF	ACC	ON
   	6 (W)	Ground	0V	0V	Battery voltage
   	10 (LG)		0V	Battery voltage	Battery voltage
   	11 (L/R)		Battery voltage	Battery voltage	Battery voltage

OK or NG 

OK: GO TO 2.

NG: Repair or replace Intelligent Key power supply circuit.

Check continuity between Intelligent Key unit connector M34 terminal 12 (B) and ground.

12 (B) - Ground : Continuity should exist. 

Fig 2: Identifying Continuity Between Intelligent Key Unit Harness Connector M34 Terminal 12 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK: Power supply and ground circuits are normal.

NG: Repair or replace the Intelligent Key unit ground circuit.