2007 INFINITI M35 keyless entry

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
Keyless Power Window Down (Open) Function
All power windows open when the unlock button on Intelligent Key is activated and kept pressed for more than
3 seconds with the ignition switch OFF. The windows keep opening if the unlock button is continuously
pressed.
The power window opening stops when the following operations are performed:

When the unlock button is kept pressed more than 15 seconds.

When the ignition switch is turned ON while the power window opening is operated.

When the unlock button is released.
While retained power operation activate, Keyless power window down (open) Function cannot be operated.
Keyless power window down operation mode can be changed by “P/W DOWN DELAY” mode in “WORK SUP-
PORT”. Refer to BL-81, "
WORK SUPPORT" .
Room Lamp Illumination Operation
When the following conditions are met:

Condition of interior lamp switch is in DOOR position

Door switch OFF (all the doors are closed)
Intelligent Key system turns on interior lamp (for 30 seconds) by receiving UNLOCK signal from Intelligent
Key. For detailed description, refer to LT- 2 6 9 , "
ROOM LAMP TIMER OPERATION" .
List of Operation Related Parts
Parts marked with × are the parts related to operation.
ENGINE START FUNCTION
Refer to BL-125, "INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION" .
Remote keyless entry functions
Intelligent Key
Key slot
Door request switch (Driver, Passenger)
Door switch
Trunk room lamp switch
Door lock actuator
Trunk lid opener actuator
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Combination meter
Hazard warning lamp
Horn
IPDM E/R
Head lamp
Door lock/unlock function by remote control button×× × × ×××
Trunk open function by remote control button×× × × ×××
Hazard and horn reminder function× ××××××××
Selective unlock function××××××
Keyless power window down (open) function×× ×××
Auto door lock function×× × ×××
Panic alarm function× × ××× ×××

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Intelligent Key UnitNIS001XD
Te r m i -
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
Approx. Ignition
Switch
PositionOperation or Conditions
1 SB Power source (Fuse) Input — — Battery voltage
2GRDoor request switch
(driver side)Input —Press door request switch (driver
side).0
Other than above 5
4B/YRemote keyless entry
receiver RSSI signalInput/
OutputLOCKWhen Intelligent Key is in vehicle,
press push-button ignition switch0
Other than above
5B/WRemote keyless entry
receiver signalInput/
OutputLOCKWaiting state
Any operation using Intelligent
Key
6BRemote keyless entry
receiver ground—— — 0
7B/RRemote keyless entry
receiver power supplyOutput LOCK —
11 L GOutside key antenna
(+) signal
(passenger side)
Output LOCKPress door request switch (pas-
senger side).
12 GOutside key antenna
(-) signal
(passenger side)
13 LG/BKey slot illumination
signalOutput LOCKInsert Intelligent Key into key slot
and driver side door is open.Illuminate: Battery voltage
Does not illuminate: 0
Remove Intelligent Key from key
slot.0
PIIB5657J
OCC3879D
OCC3880D
OCC3881D
SIIA1910J

BL-78
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
8. CHECK TRUNK OPENER REQUEST SWITCH OPERATION
Does the trunk open operation by the trunk opener request switch operate?
OK or NG
OK >> GO TO 9.
NG >> GO TO BL-86, "
TRUNK OPEN FUNCTION MALFUNCTION" .
9. CHECK REMOTE KEYLESS FUNCTION
Does the following operation by the Intelligent Key remote control button operate?

Door lock/unlock function

Trunk open function

Panic alarm function
OK or NG
OK >> GO TO 10.
NG >> GO TO BL-85, "
REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION" .
10. CHECK POWER WINDOW OPERATION
Does power window operation by power window main switch operate?
OK or NG
OK >> GO TO 11.
NG >> Refer to GW-14, "
POWER WINDOW SYSTEM" .
11 . CHECK POWER WINDOW DOWN FUNCTION
Does power window down function by Intelligent Key remote control button operate?
OK or NG
OK >> GO TO 12.
NG >> GO TO BL-88, "
POWER WINDOW DOWN FUNCTION MALFUNCTION" .
12. CHECK HAZARD AND BUZZER REMINDER FUNCTION BY REQUEST SWITCH
Does hazard and buzzer reminder function by the following switches operate?

Door request switches

Trunk opener request switch
OK or NG
OK >> GO TO 13.
NG >> GO TO BL-87, "
HAZARD AND BUZZER REMINDER FUNCTION MALFUNCTION" .
13. CHECK HAZARD AND HORN REMINDER FUNCTION BY INTELLIGENT KEY BUTTON
Does hazard and horn reminder function by Intelligent Key button operate?
OK or NG
OK >> GO TO 14.
NG >> GO TO BL-87, "
HAZARD AND HORN REMINDER FUNCTION MALFUNCTION" .
14. CHECK WARNING FUNCTION
Does warning function operate? Refer to BL-54, "
WARNING FUNCTION" .
OK or NG
OK >> GO TO 15.
NG >> Refer to BL-88, "
WARNING FUNCTION MALFUNCTION" .

BL-84
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 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-
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)

“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-
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)

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

Intelligent Key is out of key slot.

All doors are closed.
ENGINE SW ILLUMIThis test is able to check push-ignition switch illumination operation.
Push-ignition switch illumination illuminates when “ON” on CONSULT-II screen is touched.
LOCK INDCATORThis test is able to check LOCK indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
ACC INDCATORThis test is able to check ACC indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
IGNITION ON INDThis test is able to check INGITION ON indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
KEY SLOT ILLUMIThis test is able to check key slot illumination operation.
Key slot illumination flash when “ON” on CONSULT-II screen is touched. Test item Description
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-91
2. Check Intelligent Key battery inspection.BL-124
3. Check remote keyless entry receiver.BL-115
4. Replace Intelligent Key unit.BL-123
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-91
2. Check door switch.BL-94
3. Check key slot.BL-92
4. Replace Intelligent Key unit.BL-123

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
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-992. 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-992. 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-812. 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 procedureReference
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

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
Check Ignition Switch PositionNIS001XY
1. CHECK IGNITION POWER SUPPLY
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Ignition power supply is OK.
NG >> Check the following.

Repair or replace Intelligent Key unit power supply circuit.

Check 10A fuse [No. 6, located in the fuse block (J/B)]

Check 10A fuse [No. 12, located in the fuse block (J/B)]
Check Remote Keyless Entry ReceiverNIS001XZ
1. CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check signal between remote keyless entry receiver connector and ground with oscilloscope.
OK or NG
OK >> Remote keyless entry receiver is OK.
NG >> GO TO 2.
Te r m i n a l s
Ignition switch position
(+)
(–) Intelligent
Key unit
connectorTerminal OFF ACC ON
M3230
Ground0 Battery voltage Battery voltage
31 0 0 Battery voltage
PIIB6357E
Terminals
Keyfob
conditionSignal
(Reference value) (+)
(–) Remote
keyless
entry
receiver
connectorTerminal
M89 2 GroundNo function
Any button
is pressed
PIIB6358E
OCC3879D
OCC3880D

BL-116
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
2. CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY
1. Disconnect remote keyless entry receiver connector.
2. Check signal between remote keyless entry receiver connector and ground with oscilloscope.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS CONTINUITY 1
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector and remote keyless entry receiver connector.
3. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Repair or replace harness between Intelligent Key unit and remote keyless entry receiver.
4. CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT
Check continuity between remote keyless entry receiver connector and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
Terminals
Signal
(Reference value) (+)
(–) Remote keyless
entry receiver
connectorTerminal
M89 4 Ground
PIIB6359E
OCC3881D
AB
Continuity
Intelligent Key
unit connectorTe r m i n a lRemote keyless
entry receiver
connectorTerminal
M32 7 M89 4 Yes
A
GroundContinuity
Intelligent Key unit
connectorTerminal
M32 7 No
PIIB6360E
Remote keyless entry
receiver
connectorTerminal
GroundContinuity
M89 1 Yes
PIIB6361E

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
5. CHECK HARNESS CONTINUITY 2
Check continuity between Intelligent Key unit connector and remote keyless entry receiver connector.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Repair or replace harness between Intelligent Key unit
and remote keyless entry.
6. CHECK HARNESS CONTINUITY 3
1. Check continuity between Intelligent Key unit connector and remote keyless entry receiver connector.
2. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace harness between Intelligent Key unit and remote keyless entry.
AB
Continuity
Intelligent Key
unit connectorTerminalRemote keyless
entry receiver
connectorTerminal
M32 6 M89 1 Yes
PIIB6362E
AB
Continuity
Intelligent Key
unit connectorTerminalRemote keyless
entry receiver
connectorTerminal
M32 5 M89 2 Yes
A
GroundContinuity
Intelligent Key unit
connectorTerminal
M32 5 No
PIIB6363E