Infiniti M35/M45 Y50. Manual - part 254

INTELLIGENT KEY SYSTEM

BL-85

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BL

REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION

NOTE:

●

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

BL-

77, "Trouble Diagnosis Procedure"

 .

●

Make sure 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” col-
umn in this order.

Conditions of Vehicle (Operating Conditions)

●

Intelligent Key is out of key slot.

●

Ignition switch is not ON position.

●

All doors are closed.

Door lock/unlock does not operate by request 
switch (driver side).

1.

Check door request switch (driver side).

BL-99

2.

Check outside key antenna (driver side).

BL-106

3.

Replace Intelligent Key unit.

BL-123

Door lock/unlock does not operate by request 
switch (passenger side).

1.

Check door request switch (passenger side).

BL-99

2.

Check outside key antenna (passenger side).

BL-106

3.

Replace Intelligent Key unit.

BL-123

Selective unlock function does not operate by 
door request switch (driver side) (other door 
lock function operate).

1.

Check “SELECT UNLOCK FUNCTION” setting in 
“WORK SUPPORT”.

BL-81

2.

Check selective unlock function with a remote control-
ler or door key cylinder.

BL-26

3.

Replace BCM.

BCS-15

Selective unlock function does not operate by 
door request switch (passenger side) (other 
door lock function operate).

1.

Check “SELECT UNLOCK FUNCTION” setting in 
“WORK SUPPORT”.

BL-81

2.

Replace Intelligent Key unit.

BL-123

Auto lock function does not operate.

1.

Check “AUTO RELOCK TIMER” setting in “WORK 
SUPPORT”.

BL-81

2.

Check door switch.

BL-94

3.

Check key slot.

BL-92

4.

Replace BCM.

BCS-15

Key reminder function does not operate.

1.

Check “ANTI KEY LOCK IN FUNCTION” setting in 
“WORK SUPPORT”.

BL-81

2.

Check door switch.

BL-94

3.

Check inside key antenna.

BL-110

4.

Check unlock sensor.

BL-103

5.

Check Intelligent Key battery inspection.

BL-124

6.

Replace Intelligent Key unit.

BL-123

Symptom

Diagnosis/service procedure

Reference page

Symptom

Diagnosis/service procedure

Reference 

page

All of the remote keyless entry functions 
do not operate.

1.

Check Intelligent Key battery inspection.

BL-124

2.

Replace Intelligent Key unit.

BL-123

Selective unlock function does not operate 
by Intelligent Key.

1.

Check “SELECT UNLOCK FUNCTION” setting in “WORK SUP-
PORT”.

BL-81

2.

Check Intelligent Key battery inspection.

BL-124

3.

Replace Intelligent Key unit.

BL-123

BL-86

INTELLIGENT KEY SYSTEM

TRUNK OPEN FUNCTION MALFUNCTION

NOTE:

●

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

BL-

77, "Trouble Diagnosis Procedure"

 .

●

Make sure 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” col-
umn in this order.

Conditions of Vehicle (Operating Conditions)

●

Intelligent Key is out of key slot.

●

All doors are closed.

Auto lock function does not operate prop-
erly.

1.

Check “AUTO RELOCK TIMER” setting in “WORK SUPPORT”.

BL-81

2.

Check door switch.

BL-94

3.

Check key slot.

BL-92

4.

Replace BCM.

BCS-15

Key reminder function does not operate.

1.

Check “ANTI KEY LOCK IN FUNCTION” setting in “WORK SUP-
PORT”.

BL-81

2.

Check door switch.

BL-94

3.

Check inside key antenna.

BL-110

4.

Check unlock sensor.

BL-103

5.

Check Intelligent Key battery inspection.

BL-124

6.

Replace Intelligent Key unit.

BL-123

Panic alarm function does not operate.

1.

Check “PANIC ALARM DELAY” setting in “WORK SUPPORT”.

BL-81

2.

Check theft warning operation.

BL-217

3.

Check Intelligent Key battery inspection.

BL-124

4.

Check key slot.

BL-92

5.

Replace Intelligent Key unit.

BL-123

Symptom

Diagnosis/service procedure

Reference 

page

Symptom

Diagnosis/service procedure

Reference page

Trunk open function does not operate by trunk 
opener request switch.

1.

Check trunk opener request switch.

BL-101

 

2.

Check trunk lid opener cancel switch.

BL-119

3.

Check outside key antenna (trunk room).

BL-108

4.

Replace Intelligent Key unit.

BL-123

Trunk open function does not operate by Intelli-
gent Key.

1.

Check “TRUNK OPEN DELAY” setting in “WORK 
SUPPORT”.

BL-81

2.

Check trunk lid opener system.

BL-207

3.

Check trunk room lamp switch.

BL-97

4.

Check Intelligent Key battery inspection.

BL-124

5.

Replace Intelligent Key unit.

BL-123

Key reminder function does not operate.

1.

Check door switch.

BL-94

2.

Check trunk room lamp switch.

BL-97

3.

Check inside key antenna (trunk room).

BL-110

4.

Check trunk lid opener system.

BL-207

5.

Replace Intelligent Key unit.

BL-123

INTELLIGENT KEY SYSTEM

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HAZARD AND BUZZER REMINDER FUNCTION MALFUNCTION

NOTE:

●

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

BL-

77, "Trouble Diagnosis Procedure"

 .

●

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.

Conditions of Vehicle (Operating Conditions)

●

“LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-II.

●

“ANSWER BACK FUNCTION” is ON when setting on CONSULT-II.

●

Ignition switch is in OFF position.

●

All doors are closed.

●

Intelligent Key is out of key slot.

HAZARD AND HORN REMINDER FUNCTION MALFUNCTION

NOTE:

●

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

BL-

77, "Trouble Diagnosis Procedure"

 .

●

Make sure 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” col-
umn in this order.

Conditions of Vehicle (Operating Conditions)

●

“ANSWER BACK FUNCTION” is ON when setting on CONSULT-II.

●

Ignition switch is in OFF position.

●

All doors are closed.

Symptom

Diagnosis/service procedure

Reference page

Hazard reminder does not operate by 
request switch.
(Horn reminder operate.)

1.

Check “HAZARD ANSWER BACK” setting in “WORK 
SUPPORT”.

BL-81

2.

Check hazard function with hazard switch.

LT-212

3.

Replace Intelligent Key unit.

BL-123

Buzzer reminder does not operate by request 
switch.
(Hazard reminder operate.)

1.

Check “ANSWER BACK WITH I-KEY LOCK” or 
“ANSWER BACK WITH I-KEY UNLOCK” setting in 
“WORK SUPPORT”.

BL-81

2.

Check Intelligent Key warning buzzer.

BL-105

3.

Replace Intelligent Key unit.

BL-123

Buzzer reminder does not operate by trunk 
opener request switch.

1.

Check “TRUNK/GLASS HATCH OPEN” setting in “WORK 
SUPPORT”.

BL-81

2.

Check Intelligent Key warning buzzer.

BL-105

3.

Check trunk opener lid system.

BL-207

4.

Replace Intelligent Key unit

BL-123

Symptom

Diagnosis/service procedure

Reference page

Hazard reminder does not operate by Intelli-
gent Key button.
(Horn reminder operate.)

1.

Check “HAZARD ANSWER BACK” setting in “WORK 
SUPPORT”.

BL-81

2.

Check hazard function with hazard switch.

LT-212

3.

Replace Intelligent Key

BL-123

Horn reminder does not operate by Intelligent 
Key button (door lock/unlock button).
(Hazard reminder operate.)

1.

Check “HORN WITH KEYLESS LOCK” setting in “WORK 
SUPPORT”.

BL-81

2.

Check horn function.

BL-122

3.

Replace Intelligent Key unit

BL-123

BL-88

INTELLIGENT KEY SYSTEM

POWER WINDOW DOWN FUNCTION MALFUNCTION

NOTE:

●

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

BL-

77, "Trouble Diagnosis Procedure"

 .

●

If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col-
umn in this order.

Conditions of Vehicle (Operating Conditions)

●

Ignition switch is in OFF or ACC position.

●

Retained power operation does not operate. Refer to 

GW-17, "RETAINED POWER OPERATION"

 .

WARNING FUNCTION MALFUNCTION

NOTE:

●

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to 

BL-

77, "Trouble Diagnosis Procedure"

 .

●

Make sure 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” col-
umn in this order.

Conditions of Vehicle (Operating Conditions)
Warning chime functions operating condition is extremely complicated, during operating confirmations, recon-
firm the list above twice in order to ensure proper operation.

Symptom

Diagnosis/service procedure

Reference page

Power window down function does not 
operate.

1.

Check “P/W DOWN DELAY” setting in “WORK SUPPORT”.

BL-81

2.

Check Intelligent Key battery inspection.

BL-124

Symptom

Diagnosis/service procedure

Reference page

OFF position warn-
ing does not oper-
ate.

For internal

1.

Check ignition switch position.

BL-115

2.

Check door switch.

BL-94

3.

Check warning chime function.

BL-123

4.

Replace Intelligent Key unit.

BL-123

For external

1.

Check ignition switch position.

BL-115

2.

Check door switch.

BL-94

3.

Check Intelligent Key warning buzzer.

BL-105

4.

Replace Intelligent Key unit.

BL-123

P position warning does not operate.

1.

Check Park position switch.

BL-113

2.

Check door switch.

BL-94

3.

Check Intelligent Key warning buzzer.

BL-105

4.

Check warning chime function.

BL-123

5.

Check combination meter display.

BL-122

6.

Replace Intelligent Key unit. 

BL-123

ACC warning does not operate

1.

Check ignition switch position.

BL-115

2.

Check warning chime function.

BL-123

3.

Check combination meter display.

BL-122

4.

Replace Intelligent Key unit.

BL-123