2006 INFINITI M35 service

BL-86
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
Trouble Diagnosis Symptom ChartNIS001XK
ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DOES NOT OPERATE
NOTE:
Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
78, "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)
“ENGINE START BY I-KEY” and “LOCK/UNLOCK BY I-KEY” are ON when setting on CONSULT-II.
All doors are closed.
DOOR LOCK/UNLOCK FUNCTION MALFUNCTION
NOTE:
Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
78, "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)
“LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT-II.
Intelligent Key is out of key slot.
All doors are closed.
Symptom Diagnosis/service procedure Reference page
All function of Intelligent Key system dose not
operate.1.Check Intelligent Key unit power supply and ground
circuit.BL-93
2. Check Intelligent Key battery inspection.BL-126
3. Check remote keyless entry receiver.BL-117
4. Replace Intelligent Key unit.BL-125
Symptom Diagnosis/service procedure Reference page
Door lock/unlock do not operate by door
request switch.1.Check Intelligent Key unit power supply and ground
circuit.BL-93
2. Check door switch.BL-96
3. Check key slot.BL-94
4. Replace Intelligent Key unit.BL-125
Door lock/unlock does not operate by request
switch (driver side).1. Check door request switch (driver side).BL-1012. Check outside key antenna (driver side).BL-108
3. Replace Intelligent Key unit.BL-125
Door lock/unlock does not operate by request
switch (passenger side).1. Check door request switch (passenger side).BL-1012. Check outside key antenna (passenger side).BL-108
3. Replace Intelligent Key unit.BL-125
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-83
2.Check selective unlock function with a remote control-
ler or door key cylinder.BL-26
3. Replace BCM.BCS-17

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION
NOTE:
Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
78, "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.
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-83
2. Replace Intelligent Key unit.BL-125
Auto lock function does not operate.1.Check “AUTO RELOCK TIMER” setting in “WORK
SUPPORT”.BL-832. Check door switch.BL-96
3. Check key slot.BL-94
4. Replace BCM.BCS-17
Key reminder function does not operate.1.Check “ANTI KEY LOCK IN FUNCTION” setting in
“WORK SUPPORT”.BL-83
2. Check door switch.BL-96
3. Check inside key antenna.BL-112
4. Check unlock sensor.BL-105
5. Check Intelligent Key battery inspection.BL-126
6. Replace Intelligent Key unit.BL-125
Symptom Diagnosis/service procedure Reference page
Symptom Diagnosis/service procedureReference
page
All of the remote keyless entry functions
do not operate.1. Check Intelligent Key battery inspection.BL-126
2. Replace Intelligent Key unit.BL-125
Selective unlock function does not operate
by Intelligent Key.1.Check “SELECT UNLOCK FUNCTION” setting in “WORK SUP-
PORT”.BL-83
2. Check Intelligent Key battery inspection.BL-126
3. Replace Intelligent Key unit.BL-125
Auto lock function does not operate prop-
erly.1. Check “AUTO RELOCK TIMER” setting in “WORK SUPPORT”.BL-832. Check door switch.BL-96
3. Check key slot.BL-94
4. Replace BCM.BCS-17
Key reminder function does not operate.1.Check “ANTI KEY LOCK IN FUNCTION” setting in “WORK SUP-
PORT”.BL-83
2. Check door switch.BL-96
3. Check inside key antenna.BL-112
4. Check unlock sensor.BL-105
5. Check Intelligent Key battery inspection.BL-126
6. Replace Intelligent Key unit.BL-125

BL-88
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
TRUNK OPEN FUNCTION MALFUNCTION
NOTE:
Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
78, "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.
Panic alarm function does not operate.1. Check “PANIC ALARM DELAY” setting in “WORK SUPPORT”.BL-83
2. Check theft warning operation.BL-220
3. Check Intelligent Key battery inspection.BL-126
4. Check key slot.BL-94
5. Replace Intelligent Key unit.BL-125
Symptom Diagnosis/service procedureReference
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-103

2. Check trunk lid opener cancel switch.BL-121
3. Check outside key antenna (trunk room).BL-110
4. Replace Intelligent Key unit.BL-125
Trunk open function does not operate by Intelli-
gent Key.1.Check “TRUNK OPEN DELAY” setting in “WORK
SUPPORT”.BL-832. Check trunk lid opener system.BL-209
3. Check trunk room lamp switch.BL-99
4. Check Intelligent Key battery inspection.BL-126
5. Replace Intelligent Key unit.BL-125
Key reminder function does not operate.1. Check door switch.BL-96
2. Check trunk room lamp switch.BL-99
3. Check inside key antenna (trunk room).BL-112
4. Check trunk lid opener system.BL-209
5. Replace Intelligent Key unit.BL-125

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
HAZARD AND BUZZER REMINDER FUNCTION MALFUNCTION
NOTE:
Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
78, "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-
78, "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-83
2. Check hazard function with hazard switch.LT- 2 11
3. Replace Intelligent Key unit.BL-125
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-83
2. Check Intelligent Key warning buzzer.BL-107
3. Replace Intelligent Key unit.BL-125
Buzzer reminder does not operate by trunk
opener request switch.1.Check “TRUNK/GLASS HATCH OPEN” setting in “WORK
SUPPORT”.BL-832. Check Intelligent Key warning buzzer.BL-107
3. Check trunk opener lid system.BL-209
4. Replace Intelligent Key unitBL-125
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-83
2. Check hazard function with hazard switch.LT- 2 11
3. Replace Intelligent KeyBL-125
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-83
2. Check horn function.BL-124
3. Replace Intelligent Key unitBL-125

BL-90
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
POWER WINDOW DOWN FUNCTION MALFUNCTION
NOTE:
Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
78, "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.
Retaind power operation does not operate. Refer to GW-16, "RETAINED POWER OPERATION" .
WARNING FUNCTION MALFUNCTION
NOTE:
Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
78, "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-83
2. Check Intelligent Key battery inspection.BL-126
Symptom Diagnosis/service procedure Reference page
OFF position warn-
ing does not oper-
ate.For internal1. Check ignition switch position.BL-117
2. Check door switch.BL-96
3. Check warning chime function.BL-125
4. Replace Intelligent Key unit.BL-125
For external1. Check ignition switch position.BL-1172. Check door switch.BL-96
3. Check Intelligent Key warning buzzer.BL-107
4. Replace Intelligent Key unit.BL-125
P position warning does not operate.1. Check Park position switch.BL-115
2. Check door switch.BL-96
3. Check Intelligent Key warning buzzer.BL-107
4. Check warning chime function.BL-125
5. Check combination meter display.BL-124
6. Replace Intelligent Key unit. BL-125
ACC warning does not operate1. Check ignition switch position.BL-1172. Check warning chime function.BL-125
3. Check combination meter display.BL-124
4. Replace Intelligent Key unit.BL-125

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
Take away warning
does not operate.Door open to close1. Check door switch.BL-96
2. Check inside key antenna.BL-112
3. Check Intelligent Key warning buzzer.BL-107
4. Check warning chime function.BL-125
5. Check key slot illumination.BL-123
6. Check combination meter display.BL-124
7. Replace Intelligent Key unit. BL-125
Push-button ignition
switch operation1. Check ignition switch position.BL-117
2. Check inside key antenna.BL-112
3. Check warning chime function.BL-125
4. Check key slot illumination.BL-123
5. Check combination meter display.BL-124
6. Replace Intelligent Key unit. BL-125
Door is open1. Check ignition switch position.BL-1172. Check inside key antenna.BL-112
3. Check combination meter display.BL-124
4. Replace Intelligent Key unit. BL-125
Take away through
window1.Check “TAKE OUT FROM WINDOW WARN” setting in
“WORK SUPPORT”.BL-83
2. Check inside key antenna.BL-112
3. Check warning chime function.BL-125
4. Check key slot illumination.BL-123
5. Check combination meter display.BL-124
6. Replace Intelligent Key unit. BL-125
Key warning chime does not operate.1. Check key slot.BL-94
2. Check door switch.BL-96
3. Check warning chime function.BL-125
4. Check key slot illumination.BL-123
5. Check combination meter display.BL-124
6. Replace Intelligent Key unit. BL-125
Door lock operation warning chime does
not operate.1. Check door switch.BL-96
2. Check key slot illumination.BL-123
3. Check Intelligent Key warning buzzer.BL-107
4. Check inside key antenna.BL-112
5. Replace Intelligent Key unit. BL-125
Symptom Diagnosis/service procedure Reference page

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
DIAGNOSTIC PROCEDURE
1. CHECK POWER SUPPLY CIRCUIT
1. Start engine.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Check the condition of harness and connector. If it is
OK, check the self-diagnosis results using CONSULT-II
again.
NG >> Check alternator. Refer to
Trouble Diagnosis Symptom Chart 1NIS001Z0
Power supply switching operation cannot be operated with all Intelligent Keys.
CAUTION:
Follow Trouble Diagnosis Flowchart referring to “Diagnosis Procedure”. Determine malfunction-
ing condition before performing this diagnosis.
Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting
diagnosis.
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-II.
Use Intelligent Key with registered Intelligent Key ID.
One or more of Intelligent Keys with registered Intelligent Key ID is in the passenger room.
Terminals
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key unit
connectorTerminal
M32 1
Ground Battery voltage
M3341
57
PIIB6252E
Diagnosis/service procedure Reference page
1. Check push button ignition switchBL-181
2. Check inside key antennaBL-183
3. Check remote keyless entry receiverBL-185
4. Replace Intelligent Key unit.BL-125

BL-180
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
Trouble Diagnosis Symptom Chart 2NIS001Z1
When performing the push-button ignition switch operation when the Intelligent Key is carried, there is a time
difference in the power supply position switching (the power supply changes in approximately 3 seconds)
CAUTION:
Follow Trouble Diagnosis Flowchart referring to “Diagnosis Procedure”. Determine malfunction-
ing condition before performing this diagnosis.
Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting
diagnosis.
Check systems shown in the “Diagnosis/service procedure” column in this order.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)
Another Intelligent Key or foreign materials are not inserted in the key slot.
NOTE:
If another Intelligent Key or foreign materials are inserted at push-button ignition switch operation, perform the
immobilizer ID verification first. When the immobilizer ID verification cannot be performed, the system
switches to the Intelligent Key ID verification. Therefore, there is the time difference in the push-button ignition
switch operation.
Trouble Diagnosis Symptom Chart 3NIS001Z2
When performing the push-button ignition switch operation when the Intelligent Key is inserted into the key
slot, there is the time difference in the power supply position switching (the power supply changes in approxi-
mately 3 seconds)
CAUTION:
Follow Trouble Diagnosis Flowchart referring to “Diagnosis Procedure”. Determine malfunction-
ing condition before performing this diagnosis.
Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting
diagnosis.
Check systems shown in the “Diagnosis/service procedure” column in this order.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)
A device emitting electromagnetic signals such as a portable telephone or a radio is not used around the
key slot.
The Intelligent Key is inserted into the key slot until it clicks.
NOTE:
If another Intelligent Key is inserted at push-button ignition switch operation, perform the immobilizer ID verifi-
cation first. When the immobilizer ID verification cannot be performed, the system switches to the Intelligent
Key ID verification. Therefore, there is the time difference in the push-button ignition switch operation.
Diagnosis/service procedure Reference page
1. Check key switch built in key slotBL-186
2. Replace Intelligent Key unit.BL-125
Diagnosis/service procedure Reference page
1. Check NATS antenna amp. built in key slotBL-188
2. Replace Intelligent Key unit.BL-125