Ignition key INFINITI FX35 2006 Workshop Manual

BL-126
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
4. CHECK KEY SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M34 terminal 7 (B/W) and key switch and ignition knob switch connector M22 terminal 4 (B/W).
3. Check continuity between key switch and ignition knob switch connector M22 terminal 4 (B/W) and ground.
OK or NG
OK >> Replace Intelligent key unit.
NG >> Repair or replace harness between Intelligent Key unit
and key switch and ignition knob switch.
Check Key Switch (BCM Input)NIS001NO
1. CHECK KEY SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition knob OFF position.
2. Disconnect key switch and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch con- nector M22 terminal 3 (L/R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Check harness between key switch and ignition knob
switch and fuse.
2. CHECK KEY SWITCH
Check continuity between key switch and ignition knob switch as fol-
lows.
OK or NG
OK >> GO TO 3.
NG >> Replace key switch and ignition knob switch. 7 (B/W) - 4 (B/W) : Continuity should exist.
4 (B/W) - Ground : Continuity should not exist.
PIIA6740E
3 (L/R) – Ground : Battery voltage.
PIIA5093E
Terminals Condition Continuity
34 Key is inserted in ignition key cylinder. Yes
Key is removed from ignition key cylinder. No
PIIA6140E

INTELLIGENT KEY SYSTEM BL-127
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
3. CHECK KEY SWITCH SIGNAL CIRCUIT
1. Disconnect key switch and ignition knob switch connector and BCM connector.
2. Check continuity between key switch and ignition knob switch connector M22 terminal 4 (B/W) and BCM connector M3 termi-
nal 37 (B/W).
3. Check continuity between key switch and ignition knob switch connector M22 terminal 4 (B/W) and ground.
OK or NG
OK >> Key switch (BCM input) circuit is OK.
NG >> Repair or replace harness between key switch and ignition knob switch and BCM.
Check Ignition Knob SwitchNIS001NP
1. CHECK IGNITION KNOB SWITCH
With CONSULT-II
Display “PUSH SW” on “DATA MONITOR” screen, and check if ON/
OFF display is linked to ignition knob operation.
OK or NG
OK >> Ignition knob switch is OK.
NG >> GO TO 2.
2. CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect key switch and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch connector M22 terminal 1 (L/R) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace key switch and ignition knob switch power supply circuit.
4 (B/W) – 37 (B/W) : Continuity should exist.
4 (B/W) – Ground : Continuity should not exist.
PIIA5095E
Press ignition knob. : ON
Return ignition knob (release hands
from ignition knob) : OFF
PIIB1360E
1 (L/R) - Ground : Battery voltage
PIIA6741E

BL-128
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
3. CHECK IGNITION KNOB SWITCH OPERATION
Check continuity between key switch and ignition knob switch terminals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace key switch and ignition knob switch.
4. CHECK IGNITION KNOB SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M34 terminal 27 (L/W) and key switch and igni- tion knob switch connector M22 terminal 2 (L/W).
3. Check continuity between key switch and ignition knob switch connector terminal 2 (L/W) and ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair or replace harness between Intelligent Key unit
and key switch and ignition knob switch.
Connector Terminal Condition Continuity
M22 1 2 Press ignition knob Yes
Return ignition knob
(Release hands from
ignition knob) No
PIIA9929E
27 (L/W) - 2 (L/W) : Continuity should exist.
2 (L/W) - Ground : Continuity should not exist.
PIIA6743E

INTELLIGENT KEY SYSTEM BL-129
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
Check Door SwitchNIS001NQ
CHECK DOOR SWITCH (EXCEPT BACK DOOR SWITCH)
1. CHECK DOOR SWITCH INPUT SIGNAL
1. Turn ignition knob LOCK position.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
2. CHECK DOOR SWITCH CIRCUIT
1. Disconnect door switch and BCM connector.
2. Check continuity between door switch connector B26, B36, B46, B206 terminals 1 and BCM connector M3, B14 terminals 62, 12, 63, 13.
3. Check continuity between door switch connector B26, B36, B46, B206 terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Item Connector Terminals
(Wire color) Door
condition Voltage (V)
(Approx.)
(+) (-)
Driver side B14 62 (W)
Ground CLOSE
↓
OPEN Battery voltage
↓ 0
Rear LH 63 (P)
Passenger side M3 12 (P/B)
Rear RH 13 (P/L)
PIIA7003E
Driver side door
1 (W) –62 (W) : Continuity should exist.
Passenger side door
1 (SB) – 12 (P/B) : Continuity should exist.
Rear door LH
1 (P) – 63 (P) : Continuity should exist.
Rear door RH
1 (P) – 13 (P/L) : Continuity should exist.
1 (W, SB, P) – Ground : Continuity should not exist.
PIIA7004E

BL-130
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
3. CHECK DOOR SWITCH
Check continuity between door switch terminal 1 and ground part of door switch.
OK or NG
OK >> Check door switch case ground condition.
NG >> Replace door switch.
CHECK BACK DOOR SWITCH
1. CHECK BACK DOOR SWITCH INPUT SIGNAL
Check voltage between BCM connector and ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and back door closure motor connector.
3. Check continuity between BCM connector B14 terminal 58 and back door closure motor connector D109 terminal 7.
4. Check continuity between BCM connector B14 terminal 58 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Terminal Door switch condition Continuity
1 Ground part of door switch Pushed No
Released Yes
PIIA3351E
Connector Terminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (–)
B14 58 (L) Ground OPEN 0
CLOSE 9
PIIA6229E
58 (L) – 7 (L) : Continuity should exist.
58 (L) – Ground : Continuity should not exist.
PIIA6226E

BL-132
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
2. CHECK UNLOCK SENSOR CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect Intelligent Key unit and front door lock assembly (driver side) connector.
3. Check continuity between Intelligent Key unit connector M34 terminal 28 (W/B) and front door lock assembly (driver side) connector D10 terminal 4 (W).
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 D10 terminal 5 (B) 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 connector.
2. Driver side door lock is locked.
3. Check voltage between Intelligent Key unit connector M34 terminal 28 (W/B) and ground.
OK or NG
OK >> Replace front door lock assembly (driver side).
NG >> Replace Intelligent Key unit. 28 (W/B) – 4 (W) : Continuity should exist.
PIIA6803E
5 (B) – Ground : Continuity should exist.
PIIA6804E
28 (W/B) – Ground : Approx. 5V
PIIA6802E

INTELLIGENT KEY SYSTEM BL-133
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
Check Door Request SwitchNIS001NS
1. CHECK DOOR REQUEST SWITCH
With CONSULT-II
Display “DR REQ SW” (driver door), “AS REQ SW” (passenger
door) and “BD/TR REQ SW” (back door) on DATA MONITOR
screen, and check if ON-OFF display is linked to door request switch
operation.
OK or NG
OK >> Door request switch is OK.
NG >> GO TO 2.
2. CHECK DOOR REQUEST SWITCH SIGNAL
1. Turn ignition knob LOCK position.
2. Disconnect door request switch connector.
3. Check voltage between door request switch connector D12 (driver door), D42 (passenger door), D113 (back door) terminal 1 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3. CHECK DOOR REQUEST SWITCH OPERATION
Check continuity between door request switch D12 (driver door), D42 (passenger door), D113 (back door) ter-
minals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace door request switch. Press door request switch. : ON
Release door request switch. : OFF
PIIB1361E
Driver 1 (SB) - Ground : Approx. 5V
Passenger 1 (GY) - Ground : Approx. 5V
Back door 1 (GY) - Ground : Approx. 5V
PIIA6744E
Terminal Condition Continuity
12 Press door request switch Yes
Return door request switch No
PIIA9930E

BL-134
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
4. CHECK DOOR REQUEST SWITCH GROUND CIRCUIT
Check continuity between door request switch connector D12 (driver side), D42 (passenger side), D113 (back
door) terminal 2 (B) and ground.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace door request switch ground circuit.
5. CHECK DOOR REQUEST SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector M34 terminals 5 (driver door), 25 (passenger door), and 29 (back door) and door request switch connector D12 (driver door), D42 (passenger door),
D113 (back door) terminal 1.
3. Check continuity between door request switch connector D12 (driver door), D42 (passenger door), D113 (back door) terminal
1 and ground.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair or replace harness between Intelligent Key unit and door request switch.
Check Intelligent Key Warning BuzzerNIS001NT
1. CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT
1. Turn ignition knob LOCK position.
2. Disconnect Intelligent Key warning buzzer connector.
3. Check voltage between Intelligent Key warning buzzer connector D11 (driver side), D41 (passenger side) terminal 1 (L) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace Intelligent Key warning buzzer power
supply circuit.
2 (B) - Ground : Continuity should exist.
PIIA6746E
Driver 5 (W/L) - 1 (SB) : Continuity should exist.
Passenger 25 (W/R) - 1 (GY) : Continuity should exist.
Back door 29 (GY) - 1 (GY) : Continuity should exist.
1 - Ground : Continuity should not exist.
PIIA6747E
1 (L) - Ground : Battery voltage
PIIA6748E

BL-138
INTELLIGENT KEY SYSTEM
Revision: 2006 December 2006 FX35/FX45
Check Inside Key AntennaNIS001NV
1. CHECK INSIDE KEY ANTENNA POWER SUPPLY CIRCUIT
Push ignition knob and use an oscilloscope to check voltage waveform between Intelligent Key unit connector
M34 terminals 13 (luggage room), 15 (dash board), 35 (dash board) and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK INSIDE KEY ANTENNA OPERATION
1. Disconnect inside key antenna connector.
2. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace malfunctioning inside key antenna.
Terminal (Wire color) Condition Signal
(Reference value)
(+) (-)
Luggage room:
13 (P)
Ground Push igni-
tion knob.
Dash board:
15 (G)
35 (LG)
PIIA6753ESIIA1910J
1 - 2 : Continuity should exist.
PIIB8512E

INTELLIGENT KEY SYSTEM BL-139
C
D E
F
G H
J
K L
M A
B
BL
Revision: 2006 December 2006 FX35/FX45
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 UnitNIS001NW
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 (P)
Ye s
2 (W/L) 14 (L)
Inside key antenna-1 (Dash board) 1 (G) 15 (G)
2 (R) 16 (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 (G)
2 (R)
Inside key antenna-2 (Dash board) 1 (LG)
2 (PU)
PIIB8513E
1 (L/R) - Ground : Battery voltage
PIIA6797E