Ignition Knob Switch Check

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 M164 terminal 27 and ground.

   Connector	Terminals		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   M164	27	Ground	Ignition switch is pushed	Battery voltage
   			Ignition switch is released	0

   Fig 1: Checking Voltage Between Intelligent Key Unit Harness Connector M164 Terminal 27 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

   YES: Ignition knob switch is OK.

   NO: GO TO 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 M66 terminal 1 and ground.

      1 - Ground: Battery voltage 

   Is the inspection result normal? 

   YES: GO TO 3

   NO: Repair or replace key switch and ignition knob switch power supply circuit.

   Fig 2: Checking Voltage Between Key Switch And Ignition Knob Switch Harness Connector M66 Terminal 1 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.
3. CHECK IGNITION KNOB SWITCH OPERATION

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

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

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

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

   YES: GO TO 4

   NO: Replace key switch and ignition knob switch.

4. CHECK IGNITION KNOB SWITCH CIRCUIT
   1. Check continuity between Intelligent Key unit harness connector M164 (A) terminal 27 and key switch and ignition knob switch harness connector M66 (B) terminal 2.

      27 - 2: Continuity should exist  .

   2. Check continuity between Intelligent Key unit harness connector M164 (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.

   Fig 4: Checking Continuity Between Intelligent Key Unit Harness Connector M164 Terminal 27 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.