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Symptom 1

  1. CHECK REGISTRATION OF ELECTRONIC KEY 

    Re-register the electronic key (all electronic keys), and check the symptom.

    OK or NG? 

    1. OK >> Electronic key ID not registered
    2. NG >> Check the following.
      • All the electronic keys unsuccessful: GO TO 2.
      • Only specific electronic key unsuccessful: malfunction in the applicable electronic key (including transponder)
  2. CHECK ANTENNA AMP INSTALLATION 

    Check the installation condition of the antenna amplifier.

    OK or NG? 

    1. OK >> GO TO 3.
    2. NG >> Install the antenna amplifier correctly: Reference part E.
  3. CHECK POWER SUPPLY CIRCUIT FOR NATS IMMU 
    1. Disconnect the NATS IMMU connector.
    2. Check voltage between NATS IMMU harness connector M32 terminal 1 (W) and body ground.
      1. : Battery voltage should exist. 

    OK or NG? 

    1. OK >> GO TO 4.
    2. NG >> Check the following.
      • Check fuse.
      • Check harness for open or short between fuse block and NATS IMMU.
  4. CHECK GROUND CIRCUIT FOR NATS IMMU 

    Check continuity between NATS IMMU harness connector M32 terminal 9(B/W) and body ground.

    1. : Continuity should exist. 

    OK or NG? 

    1. OK >> GO TO 5.
    2. NG >> Check harness and connector between body ground and NATS IMMU: Reference part C3.
  5. CHECK ELECTRONIC KEY INSERT SIGNAL 

    Check voltage between NATS IMMU harness connector M32 terminal 2(PU/W) and body ground.

    Fig 1: Terminals Voltage Specifications (Electronic Key Insert Signal)
    G02017935Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG? 

    1. OK >> GO TO 6.
    2. NG >> Check the following.
      • Key switch (insert) malfunction.
      • Check harness for open or short between fuse block and the key switch (insert).
      • Check harness for open or short between key switch (insert) and NATS IMMU.
  6. CHECK NATS ANTENNA AMP. CIRCUIT 1 

    Insert electronic key into ignition key cylinder, and immediately check voltage between antenna amp harness connector M65 terminal 1 (R) and body ground.

    Fig 2: Terminals Voltage Specifications (NATS Antenna Amp. Circuit 1)
    G02017936Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG? 

    1. OK >> GO TO 7.
    2. NG >> GO TO  10 .
  7. CHECK NATS ANTENNA AMP. CIRCUIT 2 
    • Disconnect antenna amp connector.
    • Check continuity between antenna amp harness connector M65 terminal 4(B/R) and body ground.
      1. : Continuity should exist. 

    OK or NG? 

    1. OK >> GO TO 8.
    2. NG >> GO TO  10 .
  8. CHECK NATS ANTENNA AMP. CIRCUIT 3 
    • Connect antenna amp connector.
    • Insert the electronic key into the ignition key cylinder, and immediately check voltage between antenna amp harness connector M65 terminal 2(Y) and body ground.
      Fig 3: Terminals Voltage Specifications (NATS Antenna Amp. Circuit 3)
      G02017937Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG? 

    1. OK >> GO TO 9.
    2. NG >> GO TO  10 .
  9. CHECK NATS ANTENNA AMP. CIRCUIT 4 

    Insert the electronic key into the ignition key cylinder, and immediately check voltage between antenna amp harness connector M65 terminal 3(Y/G) and body ground.

    Fig 4: Terminals Voltage Specifications (NATS Antenna Amp. Circuit 4)
    G02017938Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG? 

    1. OK >> Replace NATS antenna amp: Reference part E.
    2. NG >> GO TO 10.
  10. CHECK NATS ANTENNA AMP. CIRCUIT 5 
    • Turn ignition switch OFF.
    • Disconnect NATS IMMU and antenna amp connector.
    • Check continuity between NATS IMMU harness connector M32 terminals 5(R), 6(Y), 7(Y/G), 8(B/R) and antenna amp harness connector M65 terminals 1(R), 2(Y), 3(Y/G),4(B/R).
      1. 5(R) - 1(R) : Continuity should exist. 
      2. 6(Y) - 2(Y) : Continuity should exist. 
      3. 7(Y/G) - 3(Y/G) : Continuity should exist. 
      4. 8(B/R) - 4(B/R) : Continuity should exist. 
    • Check continuity between NATS IMMU harness connector M32 terminals 5(R), 6(Y), 7(Y/G), 8(B/R) and body ground.
      1. 5(R) - ground : Continuity should not exist. 
      2. 6(Y) - ground : Continuity should not exist. 
      3. 7(Y/G) - ground : Continuity should not exist. 
      4. 8(B/R) - ground : Continuity should not exist. 

    OK or NG? 

    1. OK >> Replace NATS IMMU: Reference part A.
    2. NG >> Harness malfunction between NATS IMMU and the antenna amplifier: Reference parts E1, 2, 3, 4
  11. PERFORM INITIALIZATION WITH CONSULT-II 

    Perform initialization with CONSULT-II.

    For the operation of initialization, refer to "CONSULT-II operation manual IVIS / NVIS".

    OK or NG? 

    1. OK >> END.
    2. NG >> GO TO 12.
  12. CHECK POWER SUPPLY CIRCUIT FOR STEERING LOCK CONTROL UNIT 
    • Turn ignition switch OFF.
    • Disconnect steering lock control unit connector.
    • Check voltage between steering lock control unit connector 1 (Y/G) body ground.
      1. : Battery voltage should exist. 

    OK or NG? 

    1. OK >> GO TO 13.
    2. NG >> Check the following.
      • Check fuse.
      • Check harness for open or short between fuse block and steering lock control unit.
  13. CHECK GROUND CIRCUIT FOR STEERING LOCK 

    Check voltage continuity steering lock control unit harness connector M69 terminal 4(B) and body ground.

    1. : Continuity should exist. 

    OK or NG? 

    1. OK >> GO TO 14.
    2. NG >> Repair or replace harness.
  14. CHECK ELECTRONIC KEY INSERT SIGNAL 2 

    Check voltage between steering lock control unit harness connector M69 terminal 2(PU/W) and body ground.

    Fig 5: Terminals Voltage Specifications (Electronic Key Insert Signal 2)
    G02017939Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG? 

    1. OK >> GO TO 15.
    2. NG >> Check the following.
      • Check harness for open or short between fuse block and key switch.
      • Check harness for open or short between key switch and steering lock control unit.
  15. CHECK STEERING LOCK CONTROL UNIT 

    Insert the electronic key into the ignition key cylinder, and immediately check voltage between steering control unit harness connector M69 terminal 3(L) and body ground.

    Fig 6: Terminals Voltage Specifications (Steering Lock Control Unit)
    G02017940Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG? 

    1. OK >> Replace steering lock control unit.
    2. NG >>
      • Replace NATS IMMU.
      • Check harness for open or short between NATS IMMU and steering lock control unit.
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