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 STEERING LOCK SOLENOID POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect steering lock solenoid connector.
3. Check voltage between steering lock solenoid harness connector M15 terminal 1 and ground.
  1 - Ground: Battery voltage
  
  Fig 1: Checking Steering Lock Solenoid Power Supply Voltage
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: GO TO 2
  
  NO: Repair or replace steering lock solenoid power supply circuit.
CHECK STEERING LOCK SOLENOID GROUND CIRCUIT
Check continuity between steering lock solenoid harness connector M15 terminal 4 and ground.

4 - Ground: Continuity should exist.

Fig 2: Checking Steering Lock Solenoid Ground Circuit Continuity
Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: GO TO 3

NO: Repair or replace the steering lock solenoid ground circuit.
CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect steering lock solenoid connector.
2. Check voltage between Intelligent Key unit harness connector M70 terminal 1 and ground.
  1 - Ground: Approx. 5V
  
  Fig 3: Checking Intelligent Key Unit Output Signal Voltage
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: GO TO 4
  
  NO: GO TO 6

CHECK STEERING LOCK COMMUNICATION SIGNAL

Check signal between Intelligent Key unit connector M70 terminal 32 and ground with oscilloscope.

Connector	Terminals		Condition	Signal (V) (Reference value)
Connector	(+)	(-)	Condition	Signal (V) (Reference value)
M70	32	Ground	Ignition switch is pushed

Fig 4: Checking Steering Lock Communication Signal Using Oscilloscope

Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES: GO TO 5

NO: GO TO 6

CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT FOR OPEN
1. Disconnect Intelligent Key unit and steering lock solenoid connectors.
2. Check continuity between Intelligent Key unit harness connector (B) M70 terminals 1, 32 and steering lock solenoid connector (A) M15 terminals 2, 3.
  1 - 2: Continuity should exist.
  
  32 - 3: Continuity should exist.
  
  Fig 5: Checking Steering Lock Solenoid Communication Circuit For Open
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: Replace steering lock solenoid.
  - After replacing steering lock solenoid, perform registration procedure. Refer to CONSULT Immobilizer mode and follow the on-screen instructions.
  NO: Repair or replace harness between steering lock solenoid and Intelligent Key unit.
CHECK STEERING LOCK SOLENOID COMMUNICATION CIRCUIT FOR SHORT
1. Disconnect Intelligent Key unit and steering lock solenoid connectors.
2. Check continuity between steering lock solenoid connector M15 terminals 2, 3 and ground.
  2 - Ground: Continuity should not exist.
  
  3 - Ground: Continuity should not exist.
  
  Fig 6: Checking Steering Lock Solenoid Communication Circuit For Short
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  Is the inspection result normal?
  
  YES: Replace Intelligent Key unit. Refer to "REMOVAL AND INSTALLATION ".
  
  NO: Repair or replace harness between steering lock solenoid and Intelligent Key unit.