2005 INFINITI FX35 steering

BL-114
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
Terminals and Reference Value for INTELLIGENT KEY UNITAIS004N0
Te r -
minal No. Wire
color Item Condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit power
supply LOCK — 5
2 L CAN-H — — —
3 R CAN-L — — —
4LG Intelligent Key warning
buzzer LOCK Operate remote con-
troller button or door
request switch. Buzzer OFF Battery voltage
Sound buzzer 0
5W/L Door request switch
(driver side) — Door request switch operation: Press
(ON). 0
Other than the above (OFF) 5
6 G/R Ignition switch (ON) ON or START — Battery voltage
7 B/W key switch LOCK Insert mechanical key into ignition key
cylinder. Battery voltage
Remove mechanical key from ignition
key cylinder. 0
10 LG/R Ignition switch (ACC) ACC or ON — Battery voltage 11 L/R Power source (Fuse) — — Battery voltage
12 B Ground — — 0
13 Y Inside key antenna (+)
(Luggage room)
LOCK Any door open
→ all doors shut
(Door switch: ON → OFF)
14 BR Inside key antenna (-)
(Luggage room)
15 W/R Inside key antenna (+)
signal
(Dashboard)
LOCK Any door open
→ Close (Door switch:
ON → OFF)
Ignition knob switch: ON (press ignition
knob.)
16 B/R Inside key antenna (-)
signal
(Dashboard)
17 OR/L Back door antenna (+)
LOCK Back door request switch operation
(Switch: ON)
18 PU/R Back door antenna (-)
19 SB Outside antenna LH (+) LOCK Driver door request signal operation
(Switch: ON)
20 R/G Outside antenna LH (-)
25 W/R Door request switch
(passenger side) — Door request switch operation: Press
(ON) 0
Other than the above (OFF) 5
SIIA1910J
SIIA1910J
SIIA1910J
SIIA1910J

INTELLIGENT KEY SYSTEM BL-115
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Revision: 2005 July 2005 FX
26 P/L Stop lamp switch — Brake pedal depressed (ON) 5
Brake pedal not depressed (OFF) 0
27 L/W Ignition knob switch — Press ignition knob. 12
Return ignition knob to LOCK position. 0
28 W/B Door unlock sensor — Door is locking → unlock 5 → 0
29 GY Door request switch
(back door) — Back door request switch operation:
Press (ON) 0
Other than the above (OFF) 5
31 Y/B Steering lock unit ground — — 0
32 R/B Steering lock unit com-
munication LOCK Press ignition knob with Intelligent Key
inside vehicle.
Other than the above 5
35 LG Inside key antenna (+)
signal
(Dashboard)
LOCK Any door open
→ Close (Door switch:
ON → OFF)
Ignition knob switch: ON (press ignition
knob.)
36 PU Inside key antenna (-)
signal
(Dashboard)
37 G Outside antenna RH (+)
LOCK Passenger door request switch opera-
tion (Switch: ON)
38 PU/
W Outside antenna RH (-)
39 R/Y Detention switch LOCK A/T selector lever in “P” position. 0
A/T selector lever in other position. Battery voltage
40 BR/
W Door lock relay LOCK
Door request switch (passenger side)
pressed Battery voltage
→ 0 → Battery
voltage
Te r -
minal
No. Wire
color Item Condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
SIIA1911J
SIIA1910J
SIIA1910J

BL-116
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
Terminals and Reference Value for Steering Lock unitAIS004N1
Terminals and Reference Value for BCMAIS004N2
Terminal
number Wire
color Item Condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) LOCK — Battery voltage
2R/W Steering lock unit
power supply LOCK — 5
3R/B Steering lock unit com-
munication signal LOCK Press ignition knob with Intelligent
Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— 0
SIIA1911J
Te r m i -
nal Wire
color Item Condition Voltage (V)
(Approx.)
1PU Key ring illumination output sig-
nal Key ring illumination is lighting. Battery voltage
Key ring illumination is being turned off. 0
12 P/B Front door switch (Passenger
side) Door open (ON)
→ Close (OFF) 0 → Battery voltage
13 P/L Rear door switch RH Door open (ON) → Close (OFF) 0 → Battery voltage
37 B/W Key switch Insert mechanical key from ignition key
sylinder. Battery voltage
Remove mechanical key from ignition
key cylinder. 0
38 W/L Ignition switch (ON) Ignition switch is in ON or START posi-
tion Battery voltage
39 L CAN-H — —
40 R CAN-L — —
41 R/B Battery saver output signal 30 minutes after ignition switch is turned
to OFF 0
Ignition switch is in ON position Battery voltage
42 L/R Power source (Fuse) — Battery voltage
44 Y Driver door lock actuator
(Unlock) Door lock / unlock switch
(Free → Unlock) 0
→ Battery voltage
45 G/W Left turn signal lamp When door lock or unlock is operated
using Intelligent Key.*
1
(ON → OFF) Battery voltage
→ 0
46 BR/W Right turn signal lamp When door lock or unlock is operated
using Intelligent Key.*
1
(ON → OFF) Battery voltage
→ 0
47 Y/R Step lamp output signal Step lamp is lighting. 0
Step lamp is being turned off. Battery voltage
48 PU/W Room lamp output signal Room lamp is lighting.*
20
Room lamp is being turned off.*
2Battery voltage
49 B Ground — 0

INTELLIGENT KEY SYSTEM BL-119
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Revision: 2005 July 2005 FX
CONSULT-II FunctionsAIS004N5

CONSULT-II has display and inspection functions for work support, self-diagnosis, data monitor, and con-
trol unit part number by combining data reception and command transmission via communication lines
from the Intelligent Key unit.
CONSULT-II Inspection ProcedureAIS004N6
CAUTION:
If CONSULT-II is used with no connection CONSULT-II CONVERTER, malfunctions might be detected
in self-diagnosis depending on control unit which carry out CAN Communication.
BASIC OPERATION
1. Turn ignition knob to LOCK position.
2. Connect CONSULT-II CONVERTER and CONSULT-II to data link connector.
3. Use mechanical key to turn ignition switch to ON.
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “INTELLIGENT KEY” on “SELECT SYSTEM” screen.

If “INTELLIGENT KEY” is not indicated, go to GI-39, "CON-
SULT-II Data Link Connector (DLC) Circuit" .
Part to be diagnosed Inspection Item, Diagnosis Mode Description
Intelligent Key WORK SUPPORT

Performs Intelligent Key-ID registration, check, and deletion.

Performs steering lock unit ID registration.

Changes settings for each function (ON/OFF).
SELF-DIAG RESULTS Intelligent Key unit performs CAN communication diagnosis.
DATA MONITOR Displays Intelligent Key unit input data in real time.
ACTIVE TEST Sends drive signals door lock actuator, buzzer or combination meter
to perform operation check.
ECU PART NUMBER Displays Intelligent Key unit part No.
PBIB1503E
SKIA3098E
PIIA6737E

BL-122
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
List of Operation Related PartsAIS004N8
Parts marked with × are the parts related to operation.
Will not operate if there is a malfunction in
the area where there is a ×.
Intelligent Key
Key switch
Ignition knob switch ACC switch
Ignition switch
Door unlock sensor
Door switch
Door request switch
Inside key antenna
Out side key antenna
Intelligent Key warning buzzer Intelligent Key unit
CAN communication system
BCM
Combination meter
Steering lock unitStop lamp switch Detention switch
Passenger side select unlock relay
Door lock/unlock operation using Intelligent
Key remote controller button operation ×××××××
Door lock/unlock operation using door
request switch operation ×××××××××
Selective door unlock function using door
request switch operation ××××××× ×
Selective door unlock function using Intelli-
gent Key remote controller button opera-
tion ××× ×××
Door lock/unlock operation using mechani-
cal key ×
Ignition knob rotation permission using
Intelligent Key ××× × × × × ×
Ignition knob rotation permission using
mechanical key ×× × × ×× ×
Engine start using Intelligent Key ×× ×××××××
Engine start using mechanical key ×× × × × × ×
Key reminder door lock operation ××××××××
Selector lever reminder operation ×× ××× ×
Ignition switch return forgotten warning ××× × × × ×
Ignition key warning (when using mechani-
cal key) ××××
Ignition switch OFF position warning (for
inside car: when door closed) ×××× × × ×
Ignition switch OFF position warning (for
outside car: when door opened/closed) ×××× × ×× × ××
Warning for removal of Intelligent Key to
outside the car (when door open/closed) ××× × × ×× × × ×
Warning for removal of Intelligent Key to
outside the car (from window) ××× × × × × ×
Door lock non-operation warning ×××××××××
Intelligent key low battery warning ×× ×××

INTELLIGENT KEY SYSTEM BL-125
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Revision: 2005 July 2005 FX
ENGINE START FUNCTION MALFUNCTION
Intelligent Key Operation Inspection
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
Ignition knob can not turn
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-152
2. Check inside key antennaBL-143
3. Replace Intelligent Key unitBL-151
KEY warning lamp on combination meter
lights up in green when ignition knob is
pressed. 1. Check ignition knob switch
BL-1322. Check steering lock unitBL-144
3. Check Intelligent Key unit power supply and ground circuitBL-129
4. Replace Intelligent Key unitBL-151
Ignition knob turns even without both Intelli-
gent Key and mechanical key. Replace steering lock unit —
Security indicator will still flash when igni-
tion knob is pressed. 1. Check key switch (Intelligent Key unit input)
BL-129
2. Replace Intelligent Key unitBL-151
Security indicator does not flash with igni-
tion knob released at LOCK position. (push
switch OFF) 1. CAN communication system
BL-128
2. Ignition knob switch systemBL-132
3. Intelligent Key unit power supply and ground circuitBL-129
Starter motor does not cranking.
(Ignition knob can turn) 1. Check detention switch
BL-1472. Check stop lamp switchBL-146
3. Replace Intelligent Key unitBL-151
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
Security indicator remains flashing with
mechanical key inserted. 1. Check key switch (BCM input)
BL-131
2. Replace Intelligent Key unitBL-151
KEY indicator and security indicator does
not flashing with mechanical key inserted. 1. Check stop lamp switch
BL-146
2. Replace Intelligent Key unitBL-151
Starter motor does not cranking.
(Ignition knob can turn) 1. Check detention switch
BL-1472. Check stop lamp switchBL-146
3. Replace Intelligent Key unitBL-151
Symptom Diagnoses service procedure Refer to page
Ignition key warning chime is inoperative.
(When mechanical key used) 1. Check CAN communication
BL-128
2. Check key switch (Intelligent Key unit input)BL-129
3. Check door switchBL-133
4. Inspect combination meter (warning) DI-5
5. Replace Intelligent Key unitBL-151
Ignition knob OFF position warning
chime (for inside vehicle) does not
sound.
(Ignition key warning chime operates) 1. Check CAN communication
BL-1282. Check ignition knob switchBL-132
3. Check key switch (Intelligent Key unit input)BL-129
4. Replace Intelligent Key unitBL-151

BL-144
INTELLIGENT KEY SYSTEM
Revision: 2005 July 2005 FX
3. CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector.
2. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1, 2 and Intelligent Key unit connector terminals 13, 14, 15, 16, 35 and 36.
3. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1 and 2 and
ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair or replace harness between inside key antenna and Intelligent Key unit.
Check Steering Lock UnitAIS004NL
1. CHECK STEERING LOCK UNIT POWER SUPPLY
1. Turn ignition knob LOCK position.
2. Disconnect steering lock unit connector.
3. Check voltage between steering lock unit connector M26 terminal 1 (L/R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace steering lock unit power supply circuit.
Item Terminal Continuity
Inside key antenna-3 (Luggage room) 1 (OR/L) 13 (Y)
Ye s
2 (W/L) 14 (BR)
Inside key antenna-1 (Dash board) 1 (W/R) 15 (W/R)
2 (B/R) 16 (B/R)
Inside key antenna-2 (Dash board) 1 (LG) 35 (LG)
2 (PU) 36 (PU)
Item Terminal Continuity
Inside key antenna-3 (Luggage room) 1 (OR/L)
Ground No
2 (W/L)
Inside key antenna-1 (Dash board) 1 (W/R)
2 (B/R)
Inside key antenna-2 (Dash board) 1 (LG)
2 (PU)
PIIA6755E
1 (L/R) - Ground : Battery voltage
PIIA6797E

INTELLIGENT KEY SYSTEM BL-145
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Revision: 2005 July 2005 FX
2. CHECK STEERING LOCK UNIT GROUND CIRCUIT
Check continuity between steering lock unit connector M26 terminal 4 (Y/B) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK STEERING LOCK COMMUNICATION CIRCUIT
1. Connect steering lock unit connector.
2. Check voltage between Intelligent Key unit connector M34 terminal 1 (R/W) and ground.
3. Immediately after pushing ignition knob, use an oscilloscope to check voltage waveform between Intelli- gent Key unit connector M34 terminal 32 (R/B) and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace Intelligent Key unit. 4 (Y/B) - Ground : Continuity should exist.
PIIA6798E
1 (R/W) - Ground : Approx. 5V
MIIB0385E
Terminal
(Wire color) Condition Signal
(Reference value)
(+) (-)
32
(R/B) Ground Immediately after
ignition knob push-
ing.
MIIB0386ESIIA1911J