Nissan Pathfinder (2011 year). Manual - part 550

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS

SEC-107

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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SYMPTOM DIAGNOSIS

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION SYMPTOMS

Symptom Table

INFOID:0000000006246279

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.

• Engine cranking is enabled when the shift lever is in the "Park" position, and in the "Neutral" position only if

the brake pedal is depressed.

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

in this order.

CONDITIONS OF VEHICLE (OPERATING CONDITIONS)

• Engine start function is ON when setting on CONSULT-III.

• Mechanical key is not inserted in key cylinder.

• One or more of Intelligent Keys with registered Intelligent Key ID is in the vehicle.

Symptom

Diagnosis/service procedure

Reference 

page

Ignition switch does not turn on with Intelligent Key.
[green "KEY" lamp is displayed]

1.

Check steering lock solenoid.

SEC-30

2.

Replace Intelligent Key unit.

SEC-113

Ignition switch does not turn on with Intelligent Key.
["KEY" lamp does not display]

1.

Check Intelligent Key unit power supply and ground circuit.

DLK-54

2.

Check ignition knob switch.

DLK-113

3.

Check key switch (BCM input).

DLK-112

4.

Check key switch (Intelligent Key unit input).

DLK-110

5.

Replace Intelligent Key unit.

SEC-113

6.

Check green "KEY" indicator.

DLK-91

7.

Check red "KEY" indicator.

DLK-91

Ignition switch does not turn on with Intelligent Key.
[red "KEY" lamp is displayed]

1a.

Check inside key antenna 1 (instrument panel).

DLK-48

1b.

Check inside key antenna 2 (luggage compartment).

DLK-50

1c.

Check inside key antenna 3 (center console).

DLK-52

2.

Replace Intelligent Key unit.

SEC-113

Ignition switch does not turn on with mechanical key

1.

Check key switch  (BCM input).

DLK-112

2.

Check key switch  (Intelligent Key unit input).

DLK-110

Engine cannot be cranked with transmission in "Park" 
or in "Neutral" position with brake pedal depressed

1.

Check transmission signal.

TM-50

2.

Check stop lamp switch.

SEC-78

"P-SHIFT" indicator does not operate properly

1.

Check "P-SHIFT" indicator.

DLK-91

2011 Pathfinder

SEC-108

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

VEHICLE SECURITY SYSTEM SYMPTOMS

VEHICLE SECURITY SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000006246280

*: 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-56

Glass ajar switch

Check glass ajar switch

DLK-59

Intelligent Key

Check Intelligent Key system

SEC-11

Key cylinder switch

Check key cylinder switch

SEC-46

—

Check Intermittent Incident

GI-37

Security indicator does not turn ON.

Check vehicle security indicator

SEC-53

Check Intermittent Incident

GI-37

2

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

Any door is opened.

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

DLK-56

Glass ajar switch

Check glass ajar switch

DLK-59

—

Check Intermittent Incident

GI-37

3

Vehicle security 
alarm does not acti-
vate.

Horn alarm

Check horn switch

SEC-91

Check Intermittent Incident

GI-37

4

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

Intelligent Key

Check Intelligent Key system

SEC-11

Key cylinder switch

Check key cylinder switch

SEC-46

—

Check Intermittent Incident

GI-37

2011 Pathfinder

NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

SEC-109

< SYMPTOM DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS SYMPTOMS

Symptom Table

INFOID:0000000006246281

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-53

2. Check Intermittent Incident

GI-37

2011 Pathfinder

SEC-110

< PRECAUTION >

[WITH INTELLIGENT KEY SYSTEM]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000006246282

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a

hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing

serious injury.

• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000006246283

NOTE:

• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-

TEM).

• Remove and install all control units after disconnecting both battery cables with the ignition knob in the

″

LOCK

″

 position.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If DTC is detected, perform trouble diagnosis according to self-diagnostic results.

For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-

anism is adopted on the key cylinder.

For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and

steering wheel rotation will become impossible.

If steering wheel rotation is required when battery power is interrupted, follow the procedure below before

starting the repair operation.

OPERATION PROCEDURE

1. Connect both battery cables.

NOTE:

Supply power using jumper cables if battery is discharged.

2. Use the Intelligent Key or mechanical key to turn the ignition switch to the 

″

ACC

″

 position. At this time, the

steering lock will be released.

3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be

rotated.

4. Perform the necessary repair operation.

2011 Pathfinder

PRECAUTIONS

SEC-111

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[WITH INTELLIGENT KEY SYSTEM]

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5. When the repair work is completed, return the ignition switch to the 

″

LOCK

″

 position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

6. Perform a self-diagnosis check of all control units using CONSULT-III. 

2011 Pathfinder

SEC-112

< REMOVAL AND INSTALLATION >

[WITH INTELLIGENT KEY SYSTEM]

NATS ANTENNA AMP.

REMOVAL AND INSTALLATION

NATS ANTENNA AMP.

Removal and Installation

INFOID:0000000006246284

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".

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

REMOVAL

1. Disconnect the battery negative terminal. Refer to 

PG-76, "Removal and Installation"

.

2. Remove cluster lid A. Refer to 

IP-11, "Exploded View"

.

3. Remove the bolt, disconnect the electrical connector and

remove the NATS antenna amp (1).

INSTALLATION

Installation is in the reverse order of removal.

AWKIA1316ZZ

2011 Pathfinder

INTELLIGENT KEY UNIT

SEC-113

< REMOVAL AND INSTALLATION >

[WITH INTELLIGENT KEY SYSTEM]

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INTELLIGENT KEY UNIT

Removal and Installation

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REMOVAL

1. Remove the front pillar upper finisher (RH). Refer to 

INT-18, "Component"

.

2. Remove the side ventilator grille (RH). Refer to 

VTL-33, "Removal and Installation"

.

3. Remove the lower dash side finisher. Refer to 

INT-19, "Removal and Installation"

.

4. Remove the upper glove box. Refer to 

IP-11, "Exploded View"

.

5. Remove the bolt (A), disconnect the electrical connector (1), and

remove the intelligent key unit (2).
•

: Front

INSTALLATION

Installation is in the reverse order of removal.

NOTE:

• When replacing the intelligent key unit, perform ID registration procedure of low tire pressure warning sys-

tem. Refer to 

WT-6, "ID Registration Procedure"

.

ALKIA1059ZZ

2011 Pathfinder

SEC-114

< REMOVAL AND INSTALLATION >

[WITH INTELLIGENT KEY SYSTEM]

REMOTE KEYLESS ENTRY RECEIVER

REMOTE KEYLESS ENTRY RECEIVER

Removal and Installation

INFOID:0000000006246286

REMOVAL

1. Remove the front pillar upper finisher (RH). Refer to 

INT-18, "Component"

.

2. Remove the side ventilator grille (RH). Refer to 

VTL-33, "Removal and Installation"

.

3. Remove the lower dash side finisher. Refer to 

INT-19, "Removal and Installation"

.

4. Remove the upper glove box. Refer to 

IP-11, "Exploded View"

.

5. Remove the bolt (A), disconnect the harness connector (1) and

remove the remote keyless entry receiver (2).

INSTALLATION

Installation is in the reverse order of removal.

NOTE:

• When replacing the remote keyless entry receiver, perform ID registration procedure of low tire pressure

warning system. Refer to 

WT-6, "ID Registration Procedure"

.

AWKIA1480ZZ

2011 Pathfinder