key INFINITI FX35 2008 Service Manual

BL-114
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
1. Disconnect key switch and ignition knob switch connector andBCM 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 SwitchINFOID:0000000001327856
1.CHECK IGNITION KNOB SWITCH
With CONSULT-III
Display “PUSH SW” on “DATA MONITOR” screen, and check if ON/OFF display is linked to ignition knob oper-
ation.
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.
3.CHECK IGNITION KNOB SWITCH OPERATION
Check continuity between key switch and ignition knob switch terminals 1 and 2. 4 (B/W) – 37 (B/W) : Cont
inuity should exist.
4 (B/W) – Ground : Conti nuity should not exist.
PIIA5095E
Press ignition knob. : ON
Return ignition knob (release hands
from ignition knob) : OFF
1 (L/R) - Ground : Battery voltage
PIIA6741E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTELLIGENT KEY SYSTEMBL-115
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
OK or NG
OK >> GO TO 4.
NG >> Replace key switch and ignition knob switch.
4.CHECK IGNITION KN OB 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.
Check Door SwitchINFOID:0000000001327857
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
Connector Terminal Condition Continuity
M22 1 2 Press ignition knob Yes
Return ignition knob (Re-
lease hands from ignition
knob)
No
PIIA9929E
27 (L/W) - 2 (L/W) : Cont
inuity should exist.
2 (L/W) - Ground : Contin uity should not exist.
PIIA6743E
Item ConnectorTe r m i n a l s
(Wire color) Door
condition Voltage (V)
(Approx.)
(+) (-)
Driver side B1462 (W)
Ground CLOSE
↓
OPEN Battery voltage
↓0
Rear LH 63 (P)
Passenger side M312 (P/B)
Rear RH 13 (P/L)
PIIA7003E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BL-116
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
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.
3.CHECK DOOR SWITCH
Check continuity between door switch te rminal 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. Driver side door
1 (W) –62 (W) : Conti
nuity should exist.
Passenger side door
1 (SB) – 12 (P/B) : Cont inuity should exist.
Rear door LH
1 (P) – 63 (P) : Conti nuity should exist.
Rear door RH
1 (P) – 13 (P/L) : Cont inuity should exist.
1 (W, SB, P) – Ground : Continuity should not exist.
PIIA7004E
Terminal Door switch condition Continuity
1 Ground part of door switch Pushed No
Released Yes
PIIA3351E
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B14 58 (L) Ground OPEN 0
CLOSE 9
PIIA6229E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTELLIGENT KEY SYSTEMBL-117
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
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.
3.CHECK GROUND CIRCUIT
Check continuity between back door closure motor connector D109
terminal 8 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK BACK DOOR SWITCH
Check continuity between back door closure motor D109 terminals 7
and 8.
OK or NG
OK >> GO TO 5.
NG >> Replace back door closure motor.
5.CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace BCM.
Check Unlock SensorINFOID:0000000001327858
1.CHECK UNLOCK SENSOR POWER SUPPLY
Check voltage between Intelligent Key unit connector and ground. 58 (L) – 7 (L) : Continuity should exist.
58 (L) – Ground : Continuity should not exist.
PIIA6226E
8 (B) – Ground : Conti
nuity should exist.
PIIA6170E
Terminals Back door condition Continuity
78 Open Yes
Close No
PIIA9934E
58 (L) – Ground : Approx. 9V
PIIA6229E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BL-118
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
OK or NG
OK >> Unlock sensor is OK.
NG >> GO TO 2.
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 c onnector 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.
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 28 (W/B) Ground Driver side door lock is
locked
5
Driver side door lock is un-
locked 0
PIIA6802E
28 (W/B) – 4 (W) : Cont
inuity should exist.
PIIA6803E
5 (B) – Ground : Continuity should exist.
PIIA6804E
28 (W/B) – Ground : Approx. 5V
PIIA6802E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTELLIGENT KEY SYSTEMBL-119
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
Check Door Request SwitchINFOID:0000000001327859
1.CHECK DOOR REQUEST SWITCH
With CONSULT-III
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 connecto r 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.
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. Press door request switch. : ON
Release door request switch. : OFF
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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BL-120
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
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 BuzzerINFOID:0000000001327860
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.CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit c onnector M34 terminal 4 and Intelligent Key warning
buzzer connector D11 (driver side), D 41 (passenger side) terminal 2 (G).
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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTELLIGENT KEY SYSTEMBL-121
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
3. Check continuity between Intelligent Key warning buzzer con- nector D11 (driver side), D41 (passenger side) terminal 2 (G)
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between Intelligent Key warn- ing buzzer and Intelligent Key unit.
3.CHECK INTELLIGENT KEY WARNING BUZZER OPERATION
Connect battery power supply to Intelligent Key warn ing buzzer connector D11 (driver side), D41 (passenger
side) terminals 1 and 2, and check the operation.
OK or NG
OK >> Intelligent Key warning buzzer is OK.
NG >> Replace Intelligent Key warning buzzer
Check Outside Key AntennaINFOID:0000000001327861
1.CHECK OUTSIDE KEY ANTENNA POWER SUPPLY
Push each door request switch, and use an oscilloscope to check voltage waveform of harness between Intel-
ligent Key unit connector M34 terminals 17 (back door), 19 (driver and rear LH door), and 37 (passenger and
rear RH door) and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK OUTSIDE KEY ANTENNA OPERATION
1. Disconnect each outside key antenna connector.
2. Check the following.
- Check continuity between door mirror (outside key antenna) connector D2 (driver side), D32 (passenger side) terminals 14 and 15
- Check continuity between outside key antenna D62 (rear door LH), D82 (rear door RH), D116 (back door)
terminals 1 and 24 (LG) - 2 (G) : Continuity should exist.
2 (G) - Ground : Continuity should not exist.
PIIA6749E
1 (BAT+) - 2 (BAT-) : the buzzer sounds
PIIA6750E
Terminal (Wire color)
ConditionSignal
(Reference value)
(+) (-)
Back door:
17 (L)
GroundPush each
door request
switch
Driver, rear LH:
19 (SB)
Passenger,
rear RH
37 (G)
MIIB0375ESIIA1910J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BL-122
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
OK or NG
OK >> GO TO 3.
NG >> Replace outside key antenna.
3.CHECK OUTSIDE KEY ANTENNA CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between each outside key antenna c onnector D2 (driver side), D32 (passenger side),
D62 (rear door LH), D82 (rear door RH), D116 (back door) terminals 1, 2, 14, 15 and Intelligent Key unit
connector M34 terminals 17, 18, 19, 20, 37, and 38.
3. Check continuity between each out side key antenna connector terminals 1, 2, 6, 7 and ground.Driver side, Passenger side
14 - 15 : Continuity should exist.
Back door, Rear door
1 - 2 : Continuity should exist.
PIIB8507E
Item
Te r m i n a l
(Wire color) Continuity
Back door 1 (L/B) 17 (L)
Ye s
2 (W/B) 18 (W/L)
Driver side 14 (BR/W) 19 (SB)
15 (R/Y) 20 (GY)
Passenger side 14 (G/Y) 37 (G)
15 (L/Y) 38 (G/W)
Rear door LH 1 (G/Y) 19 (SB)
2 (PU/W) 20 (GY)
Rear door RH 1 (G/Y) 37 (G)
2 (PU/W) 38 (G/W)
Item Te r m i n a l
(Wire color) Continuity
PIIB8511E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

INTELLIGENT KEY SYSTEMBL-123
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
BL
N
O P
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Replace harness between outside key antenna and Intelligent Key unit.
Check Inside Key AntennaINFOID:0000000001327862
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 c onnector M70, M153 (dash board), B68 (luggage room)
terminals 1 and 2.
OK or NG
OK >> GO TO 3.
NG >> Replace malfunctioning inside key antenna.
3.CHECK INSIDE KEY ANTENNA
1. Disconnect Intelligent Key unit connector.
2. Check continuity between inside key antenna c onnector M70, M153 (dash board), B68 (luggage room)
terminals 1, 2 and Intelligent Key unit connector terminals 13, 14, 15, 16, 35 and 36.
Back door 1 (L/B)
Ground No
2 (W/B)
Rear door
(LH, RH) 1 (G/Y)
2 (PU/W)
Driver side 14 (BR/W)
15 (R/Y)
Passenger side 14 (G/Y)
15 (L/Y)
Terminal (Wire color) ConditionSignal
(Reference value)
(+) (-)
Luggage room:
13 (P)
GroundPush ignition
knob.
Dash board:
15 (G)
35 (LG)
PIIA6753ESIIA1910J
1 - 2 : Continuity should exist.
PIIB8512E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C