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.

   Is CONSULT-II screen displayed as above? 

   1. Yes: GO TO 2
   2. No: GO TO "SYMPTOM MATRIX CHART 1  ".
   Fig 1: Scan Tool Display - SELF DIAG RESULTS

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

      1 (W/L) - Ground: Battery voltage 

   OK or NG 

   1. OK: GO TO 5
   2. NG: Repair or replace harness.
   Fig 2: Checking Voltage Between NATS Antenna Amp. Connector M21 Terminal 1 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
5. CHECK NATS ANTENNA AMP. SIGNAL LINE-1 

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

   Before turning ignition switch ON 

   Voltage: 0V 

   2 (P) - Ground 

   Just after turning ignition switch ON 

   : Pointer of tester should move. 

   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".
   Fig 3: Checking Voltage Between NATS Antenna Amp. Connector M21 Terminal 2 And Ground With Analog Tester

   Courtesy of NISSAN MOTOR CO., U.S.A.
6. CHECK NATS ANTENNA AMP. SIGNAL LINE-2 

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

   Before turning ignition switch ON 

   Voltage: 0V 

   4 (G) - Ground 

   Just after turning ignition switch ON 

   : Pointer of tester should move. 

   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".
   Fig 4: Checking Voltage Between NATS Antenna Amp. Connector M21 Terminal 4 And Ground With Analog Tester

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

      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".
   Fig 5: Checking Continuity Between NATS Antenna Amp. Connector M21 Terminal 3 And Ground

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