Diagnostic Procedure 5

WARNING: This page is about a different car, the 2007 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Self-diagnostic results:

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

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

Is CONSULT-II screen displayed as shown in figure?

Fig 1: CONSULT-II Display - SELF-DIAGNOSIS
Courtesy of NISSAN MOTOR CO., U.S.A.

YES: GO TO 2.

NO: GO TO "SYMPTOM MATRIX CHART 1 ".
CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to "HOW TO REPLACE NATS ANTENNA AMP. ".

OK or NG

OK: GO TO 3.

NG: Reinstall NATS antenna amp. correctly.
CHECK NVIS (NATS) IGNITION KEY ID CHIP
Start engine with another registered NATS ignition key.

Does the engine start?

YES:
- Ignition key ID chip is malfunctioning.
- Replace the ignition key.
- Perform initialization with CONSULT-II.
  For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".
NO: GO TO 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 - Ground: Battery voltage
Fig 2: Checking Voltage Between NATS Antenna Amp. Connector M21 Terminal 1 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 5.

NG: Repair or replace fuse or harness.

CHECK NATS ANTENNA AMP. SIGNAL LINE-1

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

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

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

NATS ANTENNA AMP. SIGNAL LINE-1

Terminals		Position of ignition key cylinder	Voltage (V) (Approx.)
(+ )	(- )	Position of ignition key cylinder	Voltage (V) (Approx.)
2	Ground	Before inserting ignition key	Battery voltage
		After inserting ignition key	Pointer of tester should move for approx. 30 seconds, then return to battery voltage
		Just after turning ignition switch ON	Pointer of tester should move for approx. 1 second, then return to battery voltage

OK or NG

OK: GO TO 6.

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".

CHECK NATS ANTENNA AMP. SIGNAL LINE- 2

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

Fig 4: Checking Voltage Between NATS Antenna Amp. Connector M21 Terminal 4 And Ground

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

NATS ANTENNA AMP. SIGNAL LINE- 2

Terminals		Position of ignition key cylinder	Voltage (V) (Approx.)
(+ )	(- )	Position of ignition key cylinder	Voltage (V) (Approx.)
4	Ground	Before inserting ignition key	Battery voltage
		After inserting ignition key	Pointer of tester should move for approx. 30 seconds, then return to battery voltage
		Just after turning ignition switch ON	Pointer of tester should move for approx. 1 second, then return to battery voltage

OK or NG

OK: GO TO 7.

NG:

Repair or replace harness.
NOTE: If harness is OK, replace BCM, refer to "BCM ". Perform initialization with CONSULT-II. For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".

CHECK NATS ANTENNA AMP. GROUND LINE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect NATS antenna amp. connector.
3. Check continuity between NATS antenna amp. connector M21 terminal 3 and ground.
  3 - Ground: Continuity should exist.
Fig 5: Checking Continuity Between NATS Antenna Amp Connector M21 Terminal 3 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: NATS antenna amp. is malfunctioning.

NG:
- Repair or replace harness.
  NOTE: If harness is OK, replace BCM, refer to "BCM ". Perform initialization with CONSULT-II. For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".