Infiniti FX35 / FX45. Manual - part 210

INTELLIGENT KEY SYSTEM

BL-107

< SERVICE INFORMATION >

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REMOTE CONTROL ENTRY FUNCTION MALFUNCTION

DOOR LOCK FUNCTION MALFUNCTION

Before conducting the diagnosis in the following table, check all power door lock system function. Refer to 

BL-

21

.

“KEY” and “P shift” warning lamps in combination 
meter turn on, but doors cannot be locked/un-
locked or the engine can not be started using Intel-
ligent Key.

1.

Use CONSULT-III to check if the Intelligent Key has 
been registered

Refer to 

CONSULT-III 

Operation 

Manual

2.

Use CONSULT-III setting change function to check if In-
telligent Key system has been cancelled

BL-104

3.

Intelligent Key battery inspection

BL-130

4.

Replace Intelligent Key unit

BL-130

Symptom

Diagnoses service procedure

Refer to page

Symptom

Diagnoses service procedure

Refer to page

Door lock/unlock does not operate (other func-
tions normal) when Intelligent Key remote control-
ler button is operated.

1.

Check door lock/unlock setting

BL-104

2.

Intelligent Key battery inspection

BL-130

3.

Check door unlock sensor

BL-117

4.

Check door switch

BL-115

5.

Replace BCM

BCS-13

6.

Replace Intelligent Key unit

BL-130

Driver side selective door unlock function does 
not operate, when Intelligent Key remote control-
ler button is operated.
(All other remote control entry function is OK.)

1.

Check selective door unlock setting

BL-104

2.

Replace BCM

BCS-13

3.

Replace Intelligent Key unit

BL-130

Panic alarm (horn and headlamp) do not activate, 
when panic alarm button is continuously pressed.
(All other remote control entry function is OK.)

1.

Check panic alarm mode

BL-104

2.

Check headlamp function

BL-129

3.

Check horn function

BL-129

4.

Check IPDM E/R operation

BL-129

5.

Check key switch (Intelligent Key unit input)

BL-112

6.

Check ignition knob switch

BL-114

7.

Replace Intelligent Key unit

BL-130

Hazard lamps do not flash during door lock oper-
ation using Intelligent Key remote controller but-
ton operated.
(Turn signal lamp operation is OK.)
(All other remote control entry function is OK.)

1.

Check key reminder setting

BL-104

2.

Replace BCM

BCS-13

3.

Replace Intelligent Key unit

BL-130

Hazard lamps do not flash during door lock oper-
ation using Intelligent Key remote controller but-
ton operated.
(Turn signal lamps do not operate.)

Check hazard function

BL-128

Intelligent Key warning buzzer does not sound 
during door lock/unlock operation using Intelligent 
Key remote controller button is operated.
(All other remote control entry function is OK.)

1.

Check if the operation confirmation Intelligent Key 
warning buzzer was cancelled by the CONSULT-III set-
tings change function

BL-104

2.

Check Intelligent Key warning buzzer

BL-120

3.

Replace Intelligent Key unit

BL-130

BL-108

< SERVICE INFORMATION >

INTELLIGENT KEY SYSTEM

ENGINE START FUNCTION MALFUNCTION

Intelligent Key Operation Inspection

Symptom

Diagnoses service procedure

Refer to page

Door lock/unlock does not operate when door 
request switch operation is used (power door 
lock system is normal).

1.

Check door lock/unlock setting

BL-104

2.

Check outside key antenna

BL-121

3.

Intelligent Key battery inspection

BL-130

4.

Replace Intelligent Key unit

BL-130

Door lock/unlock do not operate using door re-
quest switch operated (power door lock system 
is normal).

1.

Check door switch

BL-115

2.

Check key switch (Intelligent Key unit input)

BL-112

3.

Check ignition knob switch

BL-114

4.

Replace Intelligent Key unit

BL-130

Driver side selective door unlock function does 
not operate, when door request switch is operat-
ed.
(All other door lock function is OK.)

1.

Check selective door unlock setting

BL-104

2.

Replace BCM

BCS-13

Passenger side selective door unlock function 
does not operate, when door request switch is 
operated.
(All other door lock function is OK.)

1.

Check selective door unlock setting

BL-104

2.

Check passenger side select unlock relay

BL-128

3.

Replace Intelligent Key unit

BL-130

Hazard lamps do not flash during door lock op-
eration using door request switch operated.
(Turn signal lamp operation is normal.)
(All other door lock function is OK.)

1.

Check key reminder setting

BL-104

2.

Replace BCM

BCS-13

3.

Replace Intelligent Key unit

BL-130

Hazard lamps do not flash during door lock op-
eration using door request switch operated.
(Turn signal lamps do not operate.)

Check hazard function

BL-128

 

Intelligent Key warning buzzer does not sound 
during door lock/unlock operation using Intelli-
gent Key (regardless of whether Intelligent Key 
remote controller button or request switch oper-
ation is used).

1.

Check if the operation confirmation Intelligent Key 
warning buzzer was cancelled by the CONSULT-III 
settings change function

BL-104

2.

Check Intelligent Key warning buzzer

BL-120

3.

Replace Intelligent Key unit

BL-130

Door lock/unlock operation confirmation Intelli-
gent Key warning buzzer sounds, but door lock 
actuator does not operate. (And hazard lamps 
do not flash.)

1.

Check CAN communication

BCS-13

2.

Replace Intelligent Key unit

BL-130

INTELLIGENT KEY SYSTEM

BL-109

< SERVICE INFORMATION >

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Mechanical Key Operation Inspection

WARNING CHIME FUNCTION MALFUNCTION

Before conducting the diagnosis in the following table, check “key reminder function” with power door lock sys-
tem.

Symptom

Diagnoses service procedure

Refer to page

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KEY warning lamp on combination meter 
lights up in red when ignition knob is 
pressed. (door lock functions normal)

1.

Intelligent Key battery inspection

BL-130

2.

Check inside key antenna

BL-123

3.

Replace Intelligent Key unit

BL-130

KEY warning lamp on combination meter 
lights up in green when ignition knob is 
pressed.

1.

Check ignition knob switch

BL-114

2.

Check steering lock unit

BL-124

3.

Check Intelligent Key unit power supply and ground circuit

BL-111

4.

Replace Intelligent Key unit

BL-130

Ignition knob turns even without both Intelli-
gent Key and mechanical key.

Replace steering lock unit

—

Security indicator will still flash when ignition 
knob is pressed.

1.

Check key switch (Intelligent Key unit input)

BL-112

2.

Replace Intelligent Key unit

BL-130

Security indicator does not flash with ignition 
knob released at LOCK position. (push 
switch OFF)

1.

CAN communication system

BCS-13

2.

Ignition knob switch system

BL-114

3.

Intelligent Key unit power supply and ground circuit

BL-111

Starter motor does not cranking.
(Ignition knob can turn)

1.

Check detention switch

BL-126

2.

Check stop lamp switch

BL-126

3.

Replace Intelligent Key unit

BL-130

Symptom

Diagnoses service procedure

Refer to page

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Security indicator remains flashing with me-
chanical key inserted.

1.

Check key switch (BCM input)

BL-113

2.

Replace Intelligent Key unit

BL-130

KEY indicator and security indicator does 
not flashing with mechanical key inserted.

1.

Check stop lamp switch

BL-126

2.

Replace Intelligent Key unit

BL-130

Starter motor does not cranking.
(Ignition knob can turn)

1.

Check detention switch

BL-126

2.

Check stop lamp switch

BL-126

3.

Replace Intelligent Key unit

BL-130

Symptom

Diagnoses service procedure

Refer to page

Ignition key warning chime is inoperative.
(When mechanical key used)

1.

Check CAN communication

BCS-13

2.

Check key switch (Intelligent Key unit input)

BL-112

3.

Check door switch

BL-115

4.

Inspect combination meter (warning)

DI-5

5.

Replace Intelligent Key unit

BL-130

Ignition knob OFF position warning chime 
(for inside vehicle) does not sound.
(Ignition key warning chime operates)

1.

Check CAN communication

BCS-13

2.

Check ignition knob switch

BL-114

3.

Check key switch (Intelligent Key unit input)

BL-112

4.

Replace Intelligent Key unit

BL-130

BL-110

< SERVICE INFORMATION >

INTELLIGENT KEY SYSTEM

Ignition knob OFF position warning chime 
(for outside vehicle: after door open/
closed) does not sound.

1.

Check CAN communication

BCS-13

2.

Check ignition knob switch

BL-114

3.

Check door switch

BL-115

4.

Check Intelligent Key warning buzzer

BL-120

5.

Replace Intelligent Key unit

BL-130

Intelligent Key take out warning chime 
(when door open/closed) does not sound.

1.

Check CAN communication

BCS-13

2.

Intelligent Key battery inspection

BL-130

3.

Check ignition knob switch

BL-114

4.

Check door switch

BL-115

5.

Check Intelligent Key warning buzzer

BL-120

6.

Replace Intelligent Key unit

BL-130

Intelligent Key take out warning chime 
(when door opened/closed) sounds even 
though Intelligent Key is in vehicle.

1.

Check inside key antenna

BL-123

2.

Intelligent Key battery inspection

BL-130

3.

Replace Intelligent Key unit

BL-130

P position selecting warning lamp does 
not light up

1.

Check detention switch

BL-126

2.

Check combination meter

DI-5

3.

Replace Intelligent Key unit

BL-130

Intelligent Key take out warning chime 
(when selector lever is except P position) 
does not sound.

1.

Check CAN communication

BCS-13

2.

Check detention switch

BL-126

3.

Replace Intelligent Key unit

BL-130

Intelligent Key take out warning chime 
(through window) does not sound 

1.

Check if Intelligent Key removal warning (take out from 
window) was canceled by CONSULT-III settings change 
function

BL-104

2.

Check CAN communication

BCS-13

3.

Intelligent Key battery inspection

BL-130

4.

Check ignition knob switch

BL-114

5.

Replace Intelligent Key unit

BL-130

Intelligent Key take out warning chime 
(through window) sounds even though In-
telligent Key is in vehicle.

1.

Check inside key antenna

BL-123

2.

Intelligent Key battery inspection

BL-130

3.

Replace Intelligent Key unit

BL-130

Symptom

Diagnoses service procedure

Refer to page