turn signal INFINITI M35 2007 Factory Service Manual

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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
2. CHECK UNLOCK SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and front door lock assembly (driver side) connector.
3. Check continuity between Intelligent Key unit connector and front door lock assembly (driver side) con-
nector.
4. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between Intelligent Key unit and front door lock assembly (driver side).
3. CHECK UNLOCK SENSOR GROUND CIRCUIT
Check continuity between front door lock assembly (driver side) connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
1. Connect Intelligent Key unit harness connector.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Replace front door lock assembly (driver side).
NG >> Replace Intelligent Key unit.
AB
Continuity
Intelligent Key
unit connectorTe r m i n a l Front door lock
assembly (driver
side) connectorTerminal
M32 26 D14 3 Yes
A
GroundContinuity
Intelligent Key unit
connectorTerminal
M32 26 No
PIIB6339E
Front door lock
assembly (driver side)
connectorTerminal
GroundContinuity
D14 4 Yes
PIIB8992E
Terminals
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key unit
connectorTerminal
M32 26 Ground Battery voltage
PIIB6338E

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INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
4. CHECK INTELLIGENT KEY WARNING BUZZER OPERATION
Connect battery power supply to Intelligent Key warning buzzer terminals 1 and 3, and check the operation.
OK or NG
OK >> Intelligent Key warning buzzer is OK.
NG >> Replace Intelligent Key warning buzzer.
Check Outside Key Antenna (Driver Side and Passenger Side)NIS001XU
1. CHECK OUTSIDE KEY ANTENNA FUNCTION
With CONSULT-II
1. Check the operation with (“ANTENNA”) in the ACTIVE TEST.
2. Touch “DRIVER ANT” and “ASSIST ANT” on screen.
3. Carry the Intelligent Key into the antenna detection area.
Does the hazard lamps flash?
Yes >> Outside key antenna (driver side or passenger side) is OK.
No >> GO TO 2.
2. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Check the condition of harness and connector.
NG >> GO TO 3.1 (BAT-) - 3 (BAT+) : the buzzer sounds
PIIB6344E
Test item Corresponding antenna
DRIVER ANT Outside key antenna driver side
ASSIST ANT Outside key antenna passenger side
PIIB6345E
Te r m i n a l s
ConditionSignal
(Reference value.) (+)
(–)
Intelligent Key
unit connectorTermi-
nal
M32Driver
side24
GroundDoor
request
switch is
pushed Passen-
ger side11
PIIB8923E
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BL-108
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check Outside Key Antenna (Trunk Room)NIS001XV
1. CHECK OUTSIDE KEY ANTENNA FUNCTION
With CONSULT-II
1. Check the operation with (“ANTENNA”) in the ACTIVE TEST.
2. Touch “BD/TR ANT” on screen.
3. Carry the Intelligent Key into the antenna detection area.
Do the hazard lamps flash?
Yes >> Outside key antenna (trunk room) is OK.
No >> GO TO 2.
2. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Check the condition of harness and connector.
NG >> GO TO 3.
Test item Corresponding antenna
BD/TR ANT Outside key antenna trunk room
PIIB6345E
Te r m i n a l s
ConditionSignal
(Reference value.) (+)
(–) Intelligent
Key unit
connectorTerminal
M32 17 GroundTrunk
request
switch is
pushed
PIIB8925E
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BL-110
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check Inside Key AntennaNIS001XW
1. CHECK INSIDE KEY ANTENNA FUNCTION
With CONSULT-II
1. Check the operation with (“ANTENNA”) in the ACTIVE TEST.
2. Touch “ROOM ANT1” “ROOM ANT2” “ROOM ANT3” “LUG ANT” on screen.
3. Carry the Intelligent Key into the antenna detection area.
Do the hazard lamps flash?
Yes >> Inside key antenna is OK.
No >> GO TO 2.
2. CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
OK or NG
OK >> Check the condition of harness and connector.
NG >> GO TO 3.
Test item Corresponding antenna
ROOM ANT1 Inside key antenna instrument center
ROOM ANT2 Inside key antenna console
ROOM ANT3 Inside key antenna rear seat
LUG ANT1 Inside key antenna trunk room
PIIB6345E
Terminals
ConditionSignal
(Reference value.) (+)
(–)
Intelligent Key
unit connectorTe r -
minal
M33Instru-
ment
center47
GroundAny door
is open →
close Console 49
Rear seat 51
Trunk
room53
PIIB6350E
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INTELLIGENT KEY SYSTEM
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Check Park Position SwitchNIS001XX
1. CHECK PARK POSITION SWITCH INPUT SIGNAL
With CONSULT-II
Check (“P RANGE SW”) in “DATA MONITOR” mode.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Park position switch circuit is OK.
NG >> GO TO 2.
2. CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the condition of harness and connector.
Monitor item Condition
P RANGE SWA/T device P position: ON
Other than above: OFF
PIIB6398E
Te r m i n a l s
A/T device
positionVoltage (V)
(Approx.) (+)
(–)
Intelligent Key
unit connectorTerminal
M32 27 GroundP0
Other than
aboveBattery voltage
PIIB6352E
Terminals
ConditionVoltage (V)
(Approx.) (+)
(–) Intelligent
Key unit
connectorTerminal
M33 58 GroundWake-up state
(Open drive side
door)Battery voltage
Sleep state (After
30 seconds or
more since all
doors are closed
under the condition
that the ignition
switch is in the
LOCK position)0
PIIB6353E

INTELLIGENT KEY SYSTEM
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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

INTELLIGENT KEY SYSTEM
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Check Key Slot IlluminationNIS001Y1
1. CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL
Check voltage between key slot connector and ground.
OK or NG
OK >> Key slot illumination is OK.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and key slot connector.
3. Check continuity between Intelligent Key unit connector and key slot connector.
4. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between Intelligent Key unit and key slot.
3. CHECK KEY SLOT GROUND CIRCUIT
Check continuity between key slot connector and ground.
OK or NG
OK >> Replace key slot.
NG >> Repair or replace key slot ground circuit.
Terminals
ConditionKey slot
illuminationV o l t a g e ( V )
(Approx.) (+)
(–)
Key slot
connectorTe r m i n a l
M14 3 GroundIntelligent
Key insertedON Battery voltage
Intelligent
Key insertedOFF 0
PIIB6366E
AB
Continuity
Intelligent Key
unit connectorTe r m i n a lKey slot
connectorTe r m i n a l
M32 13 M14 3 Yes
A
GroundContinuity
Intelligent Key unit
connectorTerminal
M32 13 No
PIIB6367E
Key slot connector Terminal
GroundContinuity
M14 8 Yes
PIIB6368E

BL-122
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check Horn FunctionNIS001Y2
First perform the “SELF-DIAG RESULTS” of “BCM” with CONSULT-II, then perform the trouble diagno-
sis of malfunction system indicated in “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
CAN Com-
munication Inspection Using CONSULT-II (Self-Diagnosis)".
1. CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
Yes >> GO TO 2.
No >> Check horn circuit. Refer to WW-54, "
HORN" .
2. CHECK IPDM E/R INPUT SIGNAL
Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 3.
3. CHECK HORN RELAY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector.
3. Check continuity between IPDM E/R connector and horn relay connector.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Check Combination Meter Display FunctionNIS001Y3
1. CHECK METER DISPLAY
With CONSULT-II
Check the operation with (“LCD”) in the ACTIVE TEST.
OK or NG
OK >> Meter display is OK.
NG >> Check combination meter. Refer to DI-17, "
Self-Diagno-
sis Mode of Combination Meter" .
Terminals
Voltage (V)
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E9 48 Ground Battery voltage
PIIB6219E
AB
Continuity
IPDM E/R
connectorTe r m i n a lHorn relay
connectorTerminal
E9 48 E20 1 Yes
PIIB6220E
Is each warning displayed on meter display?
PIIB6369E

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2007 April2007 M35/M45
PRECAUTIONS FOR INTELLIGENT KEY SYSTEM

In the Intelligent Key system of model Y50, the transponder (the chip for immobilizer ID verifica-
tion) is integrated into the Intelligent Key. (For the conventional models, it is integrated into the
mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it can-
not start the engine. Instead of it, the immobilizer ID verification can be performed by inserting the
Intelligent Key into the key slot, and then it can start the engine.

When registering the Intelligent Key, 2 registration procedures (immobilizer ID registration and
Intelligent Key ID registration) should be performed. The immobilizer ID registration is the proce-
dure that registers the ID stored into the transponder (integrated into Intelligent Key) to the BCM.
The Intelligent Key ID registration is the procedure that registers the ID to the Intelligent Key unit.
Each registration is a different procedure.

When performing the Intelligent Key ID registration only, the engine cannot be started by inserting
the key into the key slot. When performing the engine immobilizer ID registration only, the engine
cannot be started by the operation when carrying the key. The registrations of both systems
should be performed.
Operation DescriptionNIS001Y9
SYSTEM DIAGRAM
OPERATION WHEN INTELLIGENT KEY IS CARRIED
Description
1. When the push-button switch is pressed, the Intelligent Key unit signals the inside key antenna and sends
the request signal to the Intelligent Key.
2. The Intelligent Key receives the request signal and sends the Intelligent Key ID signal to the Intelligent
Key unit via the remote keyless entry receiver.
3. The Intelligent Key receives the Intelligent Key ID signal and verifies it with the registered ID.
4. If the ID is successfully verified, the Intelligent Key unit sends the steering unlock signal to the steering
lock unit. Then, it sends each power supply request signal to PDU (Power Distribution Unit) after unlock-
ing the steering lock.
5. If the Intelligent Key unit judges that the engine start condition is satisfied, it sends the starter request sig-
nal via CAN communication to IPDM E/R and turns the starter motor relay ON.
6. The steering lock unit unlocks the steering lock when receiving the signal. PDU starts the power supply
distribution according to the push-button ignition switch operation when receiving the signal. If it enters the
engine start permission mode, the power supply is supplied from PDU to the starter motor relay and the
cranking is started.
CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates for 15 seconds. At that time, the engine cannot be started.
7. When Intelligent Key unit received feedback signal from ECM acknowledging the engine has been initi-
ated, the Intelligent Key unit sends a stop signal to IPDM E/R and stops the cranking by turning OFF the
PIIB6272E

BL-144
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
51 F/LInside key antenna (+)
signal
(Rear seat)Input/
Output
LOCKAny door open → closed
(Door switch: ON → OFF)
52 R/WInside key antenna (–)
signal
(Rear seat)Input/
Output
53 G/WInside key antenna (+)
signal
(Trunk room)Input/
Output
LOCKAny door open → closed
(Door switch: ON → OFF)
54 LGInside key antenna (–)
signal
(Trunk room)Input/
Output
56 B Ground — — — 0
57 L Power source (fuse) Input — — Battery voltage
58 OA/T device (Detention
switch)Output LOCKAt sleep (30 seconds or more
after all doors are closed under
the condition that the ignition
switch position is in the LOCK
position)0
At wake-up (Open driver door) Battery voltage
63 P Stop lamp switch Input —Brake pedal depressed Battery voltage
Brake pedal released Battery voltage
64 L/RPush-button ignition
switch illuminationOutput —Push-button ignition switch illumi-
nation is turned on2.6
Push-button ignition switch illumi-
nation is turned off
(15 seconds or more after the
driver door is closed)0
69 OSteering lock unit con-
dition signal-1InputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
70 L/YSteering lock unit con-
dition signal-2InputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
71 LGSteering lock control
signal-2OutputLOCKPush-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is insertedBattery voltage
ACCIgnition switch position is in
LOCK position (Steering lock
activated)Battery voltage → 0 → Battery
voltage
(Battery voltage is detected
when activating the steering
lock)
72 B Ground — — — 0 Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
SIIA1910J
SIIA1910J