Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK IGNITION KNOB SWITCH
   
   

   With CONSULT 

   Display "PUSH SW" on DATA MONITOR screen, and check if ON/OFF display is linked to ignition switch operation.

   Monitor item	Condition
   PUSH SW	Ignition switch is pushed ON
   	Ignition switch is released OFF

   Without CONSULT 

   1. Turn ignition switch OFF.
   2. Disconnect Intelligent Key unit connector.
   3. Check voltage between Intelligent Key unit harness connector M70 terminal 27 and ground.
      Fig 1: Checking Voltage Between Intelligent Key Unit Harness Connector M70 Terminal 27 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Connector	Terminals		Condition	Voltage (V) (Approx.)
      	(+)	(-)
      M70	27	Ground	Ignition switch is pushed	Battery voltage
      			Ignition switch is released	0

   Is the inspection result normal?

   YES 

   Ignition knob switch is OK.

   NO 

   GO TO STEP 2 

2. CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect key switch and ignition knob switch connector.
   3. Check voltage between key switch and ignition knob switch harness connector M12 terminal 1 and ground.

      1 - Ground

      Battery voltage

      Fig 2: Checking Voltage Between Key Switch And Ignition Knob Switch Harness Connector M12 Terminal 1 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES 

   GO TO STEP 3 

   NO 

   Repair or replace key switch and ignition knob switch power supply circuit.

3. CHECK IGNITION KNOB SWITCH OPERATION
   
   

   Check continuity between key switch and ignition knob switch terminals 1 and 2.

   Fig 3: Checking Continuity Between Key Switch And Ignition Knob Switch Terminals 1 And 2

   Courtesy of NISSAN NORTH AMERICA, INC.

   Component	Terminals		Condition	Continuity
   Ignition knob switch	1	2	Ignition switch is pushed	Yes
   			Ignition switch is released	No

   Is the inspection result normal?

   YES 

   GO TO STEP 4 

   NO 

   Replace key switch and ignition knob switch.

4. CHECK IGNITION KNOB SWITCH CIRCUIT
   
   
   1. Check continuity between Intelligent Key unit harness connector M70 (A) terminal 27 and key switch and ignition knob switch harness connector M12 (B) terminal 2.
      Fig 4: Checking Continuity Between Intelligent Key Unit Connector M70 Terminal 27 And Key Switch And Ignition Knob Switch Connector M12 Terminal 2

      Courtesy of NISSAN NORTH AMERICA, INC.

      27 - 2

      Continuity should exist.

   2. Check continuity between Intelligent Key unit harness connector M70 (A) terminal 27 and ground.

      27 - Ground

      Continuity should not exist.

   Is the inspection result normal?

   YES 

   Check the condition of harness and harness connector.

   NO 

   Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.