2006 INFINITI FX35 Intelligent key system

CAN COMMUNICATION LAN-27
[CAN]
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Revision: 2006 December 2006 FX35/FX45
CAN COMMUNICATIONPFP:23710
System DescriptionNKS0034C
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Component Parts and Harness Connector LocationNKS003MM
1. AWD control unit M92 (AWD mod-
els) 2. ICC unit M88 (with ICC system) 3. ECM M90
4. IPDM E/R E9 5. ICC sensor E39 (with ICC system) 6. Display control unit M76
7. Unified meter and A/C amp. M55 8. Steering angle sensor M14 9. Intelligent Key unit M34 (with Intelli- gent Key system)
10. ABS actuator and electric unit E56 (control unit) 11. BCM M3 12. Data link connector M5
13. LDW camera unit R9 (with Lane departure warning system) 14. Driver seat control unit B152 15. A/T assembly F44
PKIC9643E

LAN-32
[CAN]
CAN COMMUNICATION
Revision: 2006 December 2006 FX35/FX45
CAN Communication UnitNKS0034D
Go to CAN system, when selecting your CAN system type from the following table.
× : Applicable
NOTE:
Confirming the presence of the following items helps to identify CAN system type.

Models with ICC system

Models with lane departure warning system

Models with Intelligent Key system
Body type Wagon
Axle 2WD AWD
Engine VQ35DE VQ35DE/VK45DE
Transmission A/T
Brake control VDC
ICC system ××
Lane departure warning system ××
Intelligent Key system ×× ××
CAN system type 12 3456
CAN system trouble diagnosis LAN-49
LAN-69LAN-91LAN-117LAN-139LAN-163
PBIB3255E
PKIC9661E
PKIC9662E

LAN-80
[CAN]
CAN SYSTEM (TYPE 2)
Revision: 2006 December 2006 FX35/FX45
Case 8
Check Intelligent Key unit circuit. Refer to LAN-195, "Intelligent Key Unit Circuit Inspection" .
PKIC9543E
PKIC9544E

LAN-104
[CAN]
CAN SYSTEM (TYPE 3)
Revision: 2006 December 2006 FX35/FX45
Case 9
Check Intelligent Key unit circuit. Refer to LAN-195, "Intelligent Key Unit Circuit Inspection" .
PKIC9485E
PKIB4263E

LAN-152
[CAN]
CAN SYSTEM (TYPE 5)
Revision: 2006 December 2006 FX35/FX45
Case 9
Check Intelligent Key unit circuit. Refer to LAN-195, "Intelligent Key Unit Circuit Inspection" .
PKIC9616E
PKIC9617E

CAN SYSTEM (TYPE 6) LAN-177
[CAN]
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Revision: 2006 December 2006 FX35/FX45
Case 10
Check Intelligent Key unit circuit. Refer to LAN-195, "Intelligent Key Unit Circuit Inspection" .
PKIC9508E
PKIB4187E

TROUBLE DIAGNOSIS FOR SYSTEM LAN-195
[CAN]
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Revision: 2006 December 2006 FX35/FX45
Intelligent Key Unit Circuit InspectionNKS00392
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of Intelligent Key unit for damage, bend and loose connection (unit side and harness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check resistance between Intelligent Key unit harness connec- tor terminals.
OK or NG
OK >> Replace Intelligent Key unit.
NG >> Repair harness between Intelligent Key unit and data link connector.
Data Link Connector Circuit InspectionNKS00393
1. CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check data link connector and terminals for damage, bend and loose connection (connector side and har- ness side).
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector terminals.
OK or NG
OK >> Diagnose again. Refer to LAN-5, "TROUBLE DIAG-
NOSES WORK FLOW" .
NG >> Repair harness between data link connector and BCM.
Intelligent Key unit
connector Terminals Resistance
(Approx.)
M34 2 3 54 – 66 Ω
SKIA6887E
Data link connec-
tor Te r m i n a l s Resistance
(Approx.)
M5 6 14 54 – 66 Ω
PKIA9865E

INTERIOR ROOM LAMP LT-157
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Revision: 2006 December 2006 FX35/FX45
When the room lamp and personal lamp turns ON, there is a gradual brightening over 1 second. When room
lamp and personal lamp turns OFF, there is a gradual dimming over 1 second.
The room lamp and personal lamp timer is controlled by the BCM (body control module).
Room lamp and personal lamp timer control settings can be changed with CONSULT-II.
Ignition keyhole illumination turns ON at time when driver door is opened (door switch ON) or removed keyfob
from key cylinder. Illumination turns OFF when driver door is closed (door switch OFF).
Step lamp turns ON at time when driver door or passenger door is opened (door switch ON). Lamp turns OFF
when the driver, passenger doors are closed (all door switches OFF).
POWER SUPPLY AND GROUND
Power is supplied at all times (without Intelligent Key system)

through 15A fuse [No. 22, located in fuse block (J/B)]

to key switch terminal 2 and

to BCM terminal 42,

through 50A fusible link (letter M, located in fuse, fusible link and relay box)

to BCM terminal 55,

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8.
Power is supplied at all times (with Intelligent Key system)

through 10A fuse (No.38, located in fuse, fusible link and relay box)

to key switch and ignition knob switch terminal 1,

through 15A fuse [No.22, located in fuse block (J/B)]

to BCM terminal 42 and

to key switch and ignition knob switch terminal 3,

through 50A fusible link (letter M, located in fuse, fusible link and relay box)

to BCM terminal 55,

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8.
When key plate inserted to key switch, power is supplied (without Intelligent Key system)

through key switch terminal 1

to BCM terminal 37.
When inserted key plate to key switch, power is supplied (with Intelligent Key system)

through key switch and ignition knob switch terminal 4

to BCM terminal 37.
When moved ignition knob switch, power is supplied (with Intelligent Key system)

through ignition knob switch terminal 2

to intelligent key unit terminal 27.
With ignition switch in the ON or START position, power is supplied

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38.
Ground is supplied

to BCM terminals 49 and 52

through grounds terminals M35, M45 and M85.
When driver side door is opened, ground is supplied

through case ground of front door switch (driver side)

through front door switch (driver side) terminal 1

to BCM terminal 62.
When passenger side door is opened, ground is supplied

through case ground of front door switch (passenger side)

through front door switch (passenger side) terminal 1

to BCM terminal 12.