Diagnostic Procedure 5

Self-diagnostic results: 

"CHAIN OF IMMU-KEY" displayed on CONSULT-II screen 

1. CONFIRM SELF-DIAGNOSTIC RESULTS 

   Confirm SELF-DIAGNOSTIC RESULTS "CHAIN OF IMMU-KEY" displayed on CONSULT-II screen.

   Fig 1: Identifying CONSULT-II Display

   Courtesy of NISSAN MOTOR CO., U.S.A.

   Is CONSULT-II screen displayed as above?

   1. Yes: GO TO 2.
   2. No: GO TO SYMPTOM MATRIX CHART 1  .
2. CHECK NATS ANTENNA AMP. INSTALLATION 

   Check NATS antenna amp. installation. Refer to HOW TO REPLACE NATS ANTENNA AMP.  .

   OK or NG

   1. OK: GO TO 3.
   2. NG: Reinstall NATS antenna amp. correctly.
3. CHECK IVIS (NATS) IGNITION KEY ID CHIP 

   Start engine with another registered NATS ignition key.

   Does the engine start?

   1. Yes: Ignition key ID chip is malfunctioning.
      • Replace the ignition key.

        Ref. part No, E5 

      • Perform initialization with CONSULT-II.

        For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".

   2. No: GO TO 4.
4. CHECK POWER SUPPLY FOR NATS ANTENNA AMP. 
   1. Turn ignition switch ON.
   2. Check voltage between NATS antenna amp. connector M21 terminal 1 and ground.
      Fig 2: Checking Voltage Between NATS Antenna Amplifier Connector Terminal And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.

      1 (W) - Ground: Battery voltage 

   OK or NG

   1. OK: GO TO 5.
   2. NG: Repair or replace harness.
5. CHECK NATS ANTENNA AMP. SIGNAL LINE- 1 

   Check voltage between NATS antenna amp. connector M21 terminal 2 and ground with analog tester.

   Fig 3: Voltage Reference Table

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 4: Checking Voltage Between NATS Antenna Amplifier Connector Terminal And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG

   1. OK: GO TO 6.
   2. NG:
      • Repair or replace harness.
        NOTE: If harness is OK, replace BCM, perform initialization with CONSULT-II. For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".
6. CHECK NATS ANTENNA AMP. SIGNAL LINE- 2 

   Check voltage between NATS antenna amp. connector M21 terminal 4 and ground with analog tester.

   Fig 5: Voltage Reference Table

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 6: Checking Voltage Between NATS Antenna Amplifier Connector Terminal And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

   OK or NG

   1. OK: GO TO 7.
   2. NG:
      • Repair or replace harness.
        NOTE: If harness is OK, replace BCM, perform initialization with CONSULT-II. For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".
7. CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT 
   1. Turn ignition switch OFF.
   2. Check continuity between NATS antenna amp. connector M21 terminal 3 and ground.
      Fig 7: Checking Continuity Between NATS Antenna Amplifier Connector Terminal And Ground

      Courtesy of NISSAN MOTOR CO., U.S.A.

      3 (B) - Ground: Continuity should exist. 

   OK or NG

   1. OK: NATS antenna amp. is malfunctioning.Ref. part No. E6 
   2. NG:
      • Repair or replace harness.
        NOTE: If harness is OK, replace BCM, perform initialization with CONSULT-II. For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".