Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION - ".

1. PERFORM INITIALIZATION

   Perform initialization with CONSULT-III. Re-register all mechanical keys.

   For initialization and registration of mechanical key. Refer to CONSULT-III Operation Manual.

   Can the system be initialized and can steering lock be released with re-registered mechanical key? 

   YES: Steering lock solenoid was unregistered.

   NO: GO TO 2

2. CHECK STEERING LOCK SOLENOID POWER SUPPLY-1
   1. Turn ignition switch OFF.
   2. Disconnect steering lock solenoid connector.
   3. Check voltage between steering lock solenoid harness connector and ground.
      CONNECTOR TERMINAL VOLTAGE CHART
      
      

      Terminals			Voltage (V) (Approx.)
      (+)		(-)
      Steering lock solenoid connector	Terminal
      M65	1	Ground	Battery voltage

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness.

      Fig 1: Checking Voltage Between Steering Lock Solenoid Harness Connector Terminal 1 And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
3. CHECK STEERING LOCK SOLENOID GROUND CIRCUIT

   Check continuity between steering lock solenoid harness connector and ground.

   TERMINAL CONTINUITY CHART
   
   

   Terminals			Continuity
   (+)		(-)
   Steering lock solenoid connector	Terminal
   M65	4	Ground	Yes

   Is the inspection result normal? 

   YES: GO TO 4

   NO: Repair or replace harness.

   Fig 2: Checking Continuity Between Steering Lock Solenoid Harness Connector Terminal 4 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUITS
   1. Disconnect Intelligent Key unit connector.
   2. Check continuity between steering lock solenoid connector M65 (A) terminals 2, 3 and Intelligent Key unit connector M164 (B) terminals 1, 32.
      TERMINAL CONTINUITY CHART
      
      

      Terminals				Continuity
      Steering lock solenoid connector	Terminal	Intelligent Key unit connector	Terminal
      M65	2	M164	1	Yes
      	3		32

      Fig 3: Checking Continuity Between Steering Lock Solenoid Connector M65 Terminals 2, 3 And Intelligent Key Unit Connector M164 Terminals 1, 32

      Courtesy of NISSAN MOTOR CO., U.S.A.
   3. Check continuity between steering lock solenoid connector M65 (A) terminals 2, 3 and ground.
      TERMINAL CONTINUITY CHART
      
      

      Terminals			Continuity
      Steering lock solenoid connector	Terminals
      M65	2	Ground	No
      	3

      Is the inspection result normal? 

      YES: GO TO 5

      NO: Repair or replace harness.

5. CHECK INTELLIGENT KEY UNIT POWER SUPPLY-2
   1. Connect Intelligent Key unit connector.
   2. Check voltage between Intelligent Key unit harness connector and ground.
      TERMINAL VOLTAGE CHART
      
      

      Terminals			Voltage (V) (Approx.)
      (+)		(-)
      Intelligent Key unit connector	Terminal
      M164	1	Ground	5

      Is the inspection result normal? 

      YES: GO TO 6

      NO: Replace Intelligent Key unit. Refer to "REMOVAL AND INSTALLATION ".

      Fig 4: Checking Voltage Between Intelligent Key Unit Harness Connector Terminal 1 And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.
6. CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT
   1. Connect steering lock solenoid connector.
   2. Using an oscilloscope, check voltage between Intelligent Key unit connector and ground.
      Fig 5: Checking Voltage Between Intelligent Key Unit Connector Terminal 32 And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.NISSAN MOTOR CO., U.S.A.NISSAN MOTOR CO., U.S.A.
      TERMINAL VOLTAGE CHART
      
      

      Terminals			Condition		Voltage (V) (Approx.)
      (+)		(-)
      Intelligent Key unit connector	Terminal
      M164	32	Ground	Steering lock	Ignition knob is pushed	Courtesy of NISSAN MOTOR CO., U.S.A.
      				LOCK status	5
      				LOCK <=> UNLOCK	Courtesy of NISSAN MOTOR CO., U.S.A.
      				For 15 seconds after UNLOCK	5
      				15 seconds later UNLOCK	0

      Is the inspection result normal? 

      YES: Replace Steering lock solenoid.

      NO: Replace Intelligent Key unit. Refer to "REMOVAL AND INSTALLATION ".