Nissan Pathfinder (2008 year). Manual - part 557

VEHICLE SECURITY SYSTEM SYMPTOMS

SEC-89

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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VEHICLE SECURITY SYSTEM SYMPTOMS

Symptom Table

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*: Check the system is in the armed phase.

Procedure

Diagnostic procedure

Refer to page

Symptom

1

Vehicle security sys-
tem cannot be set by 
····

Door switch

Check door switch (LF, RF, LR, RR, back) 

DLK-48

Glass ajar switch

Check glass ajar switch

SEC-44

Intelligent Key

Check Intelligent Key system

SEC-9

Key cylinder switch

Check key cylinder switch

SEC-42

—

Check Intermittent Incident

GI-51

Security indicator does not turn ON.

Check vehicle security indicator

SEC-48

Check Intermittent Incident

GI-51

2

* Vehicle security 
system does not 
sound alarm when ····

Any door is opened.

Check door switch (LF, RF, LR, RR, back) 

DLK-48

Glass ajar switch

Check glass ajar switch

SEC-44

—

Check Intermittent Incident

GI-51

3

Vehicle security 
alarm does not acti-
vate.

Horn alarm

Check horn switch

HRN-3

Check Intermittent Incident

GI-51

4

Vehicle security sys-
tem cannot be can-
celed by ····

Intelligent Key

Check Intelligent Key system

SEC-9

Key cylinder switch

Check key cylinder switch

SEC-42

—

Check Intermittent Incident

GI-51

SEC-90

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

Symptom Table

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NOTE:
• Before performing the diagnosis in the following table, check “

SEC-5, "Work Flow"

”. 

• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and

check each symptom.

• If the following symptoms are detected, check systems shown in the “Diagnosis/service procedure” column

in this order.

CONDITIONS OF VEHICLE (OPERATING CONDITIONS)

• Mechanical key is not inserted into key cylinder.
• Ignition knob switch is not depressed.

Symptom

Diagnosis/service procedure

Reference page

Security indicator does not turn ON or flash.

1. Check vehicle security indicator

SEC-48

2. Check Intermittent Incident

GI-51

PRE-INSPECTION FOR DIAGNOSTIC

SEC-91

< ON-VEHICLE MAINTENANCE >

[WITH INTELLIGENT KEY SYSTEM]

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ON-VEHICLE MAINTENANCE

PRE-INSPECTION FOR DIAGNOSTIC

Basic Inspection

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The engine start function, door lock function, power distribution system and NATS-IVIS/NMS in the Intelligent
Key system are closely related to each other regarding control. Narrow down the functional area in question
by performing basic inspection to identify which function is malfunctioning. The vehicle security function can
operate only when the door lock and power distribution system are operating normally. Therefore, it is easy to
identify any factor unique to the vehicle security system by performing the vehicle security operation check
after basic inspection.

1.

CHECK DOOR LOCK OPERATION

1.

Check the door lock for normal operation with the Intelligent Key controller and door request switch.
Successful door lock operation with the Intelligent Key and request SW indicates that the remote keyless
entry receiver and inside key antenna required for engine start are functioning normally.
Identify the malfunctioning point by referring to the DLK section if the door cannot be unlocked.

Can the door be locked with the Intelligent Key and door request switch?

YES

>> GO TO 2.

NO

>> Refer to 

DLK-160, "Symptom Table"

.

2.

CHECK ENGINE STARTING

1.

Checks that the engine starts when operating the Intelligent Key.

Does the engine start?

YES

>> GO TO 3.

NO

>> Refer to 

SEC-88, "Symptom Table"

.

3.

CHECK STEERING LOCKING

1.

Does the steering lock when operating door switch after switching the power supply from ON position (or
ACC position) to LOCK position?
If door switch is malfunctioning, BCM cannot lock the steering. If BCM does not detect DTC, steering lock
unit is normal.

Does steering lock?

YES

>> GO TO 4.

NO

>> Refer to 

DLK-80, "Diagnosis Procedure"

.

4.

CHECK POWER SUPPLY INDICATOR SWITCHING

1.

Press push-button ignition switch and position indicator will switch from LOCK, ACC to ON gradually
when steering is locked. Checks that the position indicator is illuminated at different positions of the circuit.

Is each position indicator illuminating?

YES

>> GO TO 5.

NO

>> Refer to 

SEC-45, "Ignition Knob Switch Check"

.

5.

CHECK VEHICLE SECURITY SYSTEM

1.

Check the vehicle security system for normal operation.
The vehicle security function can operate only when the door lock and power distribution functions are
operating normally. 
Therefore, it is easy to identify any factor unique to the vehicle security by performing the vehicle security
operation check after this basic inspection.

>> Go to 

SEC-91, "Vehicle Security Operation Check"

.

Vehicle Security Operation Check

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1.

INSPECTION START

Turn ignition switch “OFF”.
NOTE:

SEC-92

< ON-VEHICLE MAINTENANCE >

[WITH INTELLIGENT KEY SYSTEM]

PRE-INSPECTION FOR DIAGNOSTIC

Before starting operation check, open front windows.

>> GO TO 2.

2.

CHECK SECURITY INDICATOR LAMP

1.

Lock doors using Intelligent Key or mechanical key.

2.

Check that security indicator lamp illuminates for 30 seconds.

Security indicator lamp should illuminate.

OK

>> GO TO 3.

NG

>> Perform diagnosis and repair. Refer to 

SEC-48, "Diagnosis Procedure"

.

3.

CHECK ALARM FUNCTION

1.

After 30 seconds, security indicator lamp will start to blink.

2.

Open any door before unlocking with Intelligent Key or mechanical key, or open back door or glass hatch
without the presence of Intelligent Key.

Does the alarm function properly?

YES

>> GO TO 4.

NO

>>

Check the following.

• The vehicle security system does not phase in alarm mode. Refer to 

SEC-88, "Symptom Table"

.

• Alarm (horn and headlamps) does not operate. Refer to 

SEC-88, "Symptom Table"

.

4.

CHECK ALARM CANCEL OPERATION

Unlock any door using Intelligent Key or mechanical key.
Alarm (horn and headlamps) should stop.

OK

>> INSPECTION END.

NG

>> Check door lock function. Refer to 

SEC-89, "Symptom Table"

.

INTELLIGENT KEY UNIT

SEC-93

< ON-VEHICLE REPAIR >

[WITH INTELLIGENT KEY SYSTEM]

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ON-VEHICLE REPAIR

INTELLIGENT KEY UNIT

Removal and Installation

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REMOTE KEYLESS ENTRY RECEIVER

Removal

1.

Remove the instrument panel. Refer to 

IP-10, "Removal and Installation"

.

2.

Disconnect the wire harness (1), remove the bolt (A) and the
RKE receiver (2).

Installation

Installation is in the reverse order of removal.

INTELLIGENT KEY UNIT

Removal

1.

Remove the instrument panel. Refer to 

IP-10, "Removal and Installation"

.

2.

Disconnect the wire harness (1), remove the bolt (A) and the
Intelligent key unit (2).

Installation

Installation is in the reverse order of removal.

ALKIA0537ZZ

ALKIA0666ZZ

SEC-94

< REMOVAL AND INSTALLATION >

[WITH INTELLIGENT KEY SYSTEM]

NATS ANTENNA AMP.

REMOVAL AND INSTALLATION

NATS ANTENNA AMP.

Removal and Installation

INFOID:0000000001689649

NOTE:
• If NATS antenna amp. is not installed correctly, NVIS (NATS) system will not operate properly and "SELF-

DIAG RESULTS' on CONSULT-III screen will show "LOCK MODE" or "CHAIN OF IMMU-KEY'.

• Initilization is not necessary when only the NATS antenna amp. is replaced with a new one.

REMOVAL

1.

Disconnect the battery negative terminal.

2.

Remove cluster lid A. Refer to 

IP-10, "Exploded View"

.

3.

Remove the bolt, disconnect the electrical connector, and remove the NATS antenna amp.

INSTALLATION

Installation is in the reverse order of removal.

INTELLIGENT KEY UNIT

SEC-95

< REMOVAL AND INSTALLATION >

[WITH INTELLIGENT KEY SYSTEM]

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INTELLIGENT KEY UNIT

Removal and Installation

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REMOVAL

1.

Disconnect the battery negative terminal.

2.

Remove the lower glove box. Refer to 

IP-10, "Exploded View"

.

3.

Remove the bolt (A), disconnect the electrical connector (1), and
remove the intelligent key module (2).

INSTALLATION

Installation is in the reverse order of removal.

⇒

:

Front

ALKIA1059ZZ

SEC-96

< REMOVAL AND INSTALLATION >

[WITH INTELLIGENT KEY SYSTEM]

REMOTE KEYLESS ENTRY RECEIVER

REMOTE KEYLESS ENTRY RECEIVER

Removal 

INFOID:0000000001730844

1.

Disconnect the battery negative cable.

2.

Remove the upper glove box. Refer to 

IP-10, "Exploded View"

.

3.

Remove the bolt, disconnect and remove the remote keyless entry receiver.

Installation

INFOID:0000000001730845

Installation is in the reverse order of removal.