Infiniti FX35 / FX45. Manual - part 214

INTELLIGENT KEY SYSTEM

BL-123

< SERVICE INFORMATION >

C

D

E

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 Antenna

INFOID: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 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.

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.

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)

Condition

Signal

 (Reference value)

(+)

(-)

Luggage room:
13 (P)

Ground

Push ignition 
knob.

Dash board:
15 (G)
35 (LG)

PIIA6753E

SIIA1910J

1 - 2

: Continuity should exist.

PIIB8512E

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< SERVICE INFORMATION >

INTELLIGENT KEY SYSTEM

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 Unit

INFOID:0000000001327863

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.

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.

Item

Terminal

Continuity

Inside key antenna-3 

(Luggage room)

1 (OR/L)

13 (P)

Yes

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

4 (Y/B) - Ground

: Continuity should exist.

PIIA6798E

INTELLIGENT KEY SYSTEM

BL-125

< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

BL

N

O

P

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.

CHECK STEERING LOCK UNIT COMMUNICATION CIRCUIT

1.

Disconnect Intelligent Key unit and steering lock unit connectors.

2.

Check continuity between Intelligent Key unit connector M34 terminals 1, 31, 32 and steering lock unit
connector M26 terminals 2, 3, 4.

3.

Check continuity between steering lock unit connector M26 ter-
minals 2, 3, 4 and ground.

OK or NG

OK

>>

Replace steering lock unit.

• After replacing steering lock unit, perform registration procedure. Refer to “CONSULT-III Opera-

tion Manual NATS-IVIS/NVIS”.

NG

>> Repair or replace harness between steering lock unit and Intelligent Key unit.

1 (R/W) - Ground

: Approx. 5V

MIIB0385E

Terminal

(Wire color)

Condition

Signal

(Reference value)

(+)

(-)

32

 (R/B)

Ground

Immediately after ig-
nition knob pushing.

MIIB0386E

SIIA1911J

1 (R/W) - 2 (R/W)

: Continuity should exist.

31 (Y/B) - 4 (Y/B)

: Continuity should exist.

32 (R/B) - 3 (R/B)

: Continuity should exist.

2 (R/W) - Ground

: Continuity should not exist.

3 (R/B) - Ground

: Continuity should not exist.

4 (Y/B) - Ground

: Continuity should not exist.

PIIA6799E

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< SERVICE INFORMATION >

INTELLIGENT KEY SYSTEM

Check Stop Lamp Switch

INFOID:0000000001327864

1.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1.

Disconnect stop lamp switch connector.

2.

Check voltage between stop lamp switch connector E210 termi-
nal 1 (GY) and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between stop lamp switch

and fuse.

2.

CHECK STOP LAMP SWITCH OPERATION

Check continuity between stop lamp switch connector E210 terminal
1 and 2.

OK or NG

OK

>> GO TO 3.

NG

>> Replace stop lamp switch.

3.

CHECK STOP LAMP SWITCH GROUND CIRCUIT

1.

Check continuity between stop lamp switch connector E210 ter-
minal 2 (P) and Intelligent Key unit connector M34 terminal 26
(P/L).

2.

Check continuity between stop lamp switch connector E210 ter-
minal 2 (P) and ground.

OK or NG

OK

>> Stop lamp switch is OK.

NG

>> Repair or replace harness.

Check Park Position Switch

INFOID:0000000001327865

1.

CHECK PARK POSITION SWITCH INPUT SIGNAL

1.

Turn ignition knob LOCK position.

2.

Check voltage between Intelligent Key unit connector and ground.

1 (GY) - Ground

: Battery voltage

PIIA6811E

1 - 2

Brake pedal depressed

: Continuity should exist.

Brake pedal not de-
pressed

: Continuity should not exist.

PIIA6800E

2 (P) - 26 (P/L)

: Continuity should exist.

2 (P) - Ground

: Continuity should not exist.

PIIA6801E