power steering INFINITI FX35 2008 Owner's Manual

BL-2
Check Remote Keyless Entry Receiver ..................69
Check IPDM E/R Operation ....................................71
Check Hazard Warning Lamp Function ..................72
Check Horn Function ..............................................72
Check Headlamp Function .....................................72
Check Map Lamp and Ignition Keyhole Illumina-
tion Function ...........................................................
72
ID Code Entry Procedure .......................................73
Removal and Installation of Remote keyless Entry
receiver ................................................................ ...
75
Key Fob Battery Replacement ................................75
INTELLIGENT KEY SYSTEM ............................76
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
76
System Description .................................................78
CAN Communication System Description ..............83
CAN Communication Unit .......................................84
Schematic ...............................................................84
Wiring Diagram - I/KEY - ........................ ................86
Terminal and Reference Value for INTELLIGENT
KEY UNIT ........... ................................. ...................
99
Terminal and Reference Value for Steering Lock
unit ....................................................................... ..
101
Terminal and Reference Value for BCM ................101
Terminal and Reference Value for IPDM E/R ........102
Diagnosis Procedure .............................................103
CONSULT-III Functions (INTELLIGENT KEY) ......103
CONSULT-III Application Item ............................. ..104
List of Operation Related Parts .............................105
Trouble Diagnosis Symptom Chart ........................106
Check CAN Communication System Inspection ....111
Check Intelligent Key Unit Power Supply and
Ground Circuit ..................................................... ..
111
Check Key Switch (Intelligent Key Unit Input) .......112
Check Key Switch (BCM Input) ........................... ..113
Check Ignition Knob Switch ...................................114
Check Door Switch ................................................115
Check Unlock Sensor ............................................117
Check Door Request Switch ..................................119
Check Intelligent Key Warning Buzzer ..................120
Check Outside Key Antenna ............................... ..121
Check Inside Key Antenna ....................................123
Check Steering Lock Unit ......................................124
Check Stop Lamp Switch ......................................126
Check Park Position Switch ...................................126
Check Select Unlock Relay ...................................128
Check Hazard Function .........................................128
Check Horn Function .............................................129
Check Headlamp Function ....................................129
Check IPDM E/R Operation ...................................129
Removal and Installation of Intelligent Key Unit ....130
Intelligent Key Battery Re placement .....................130
DOOR .............................................................. .131
Fitting Adjustment ................................................ ..131
Removal and Installation of Front Door .................132
Removal and Installation of Rear Door ..................133
Removal and Installation of Door Weatherstrip .....134
FRONT DOOR LOCK .......................................135
Removal and Installation ...................................... .135
REAR DOOR LOCK .........................................138
Removal and Installation ...................................... .138
BACK DOOR .................................................. ..141
Fitting Adjustment ................................................ .141
Back Door Assembly .............................................141
Removal and Installation of Back Door Striker .....142
Removal and Installation of Back Door Stay .........143
Removal and Installation of Dave Tail Male & Fe-
male ..................................................................... .
144
Removal and Installation of Back Door Weather-
strip .......................................................................
144
BACK DOOR LOCK ASSEMBLY ....................146
Removal and Installation of Back Door Lock &
Closure Assembly ................................................ .
146
Removal and Installation of Back Door Opener
Switch ...................................................................
146
Disassembly and Assembly ..................................147
BACK DOOR AUTO CLOSURE SYSTEM ......148
Component Parts and Harness Connector Loca-
tion ....................................................................... .
148
System Description ...............................................148
Wiring Diagram - B/CLOS - ...................................150
Terminal and Reference Value for Back Door Clo-
sure Control Unit ...................................................
152
Work Flow .............................................................153
Preliminary Check .................................................153
Trouble Diagnosis Chart by Symptom ..................153
Check Back Door Closure Control Unit Power
Supply and Ground Circuit ....................................
153
Check Half-Latch Switch .......................................154
Check Close Switch ..............................................155
Check Open Switch ..............................................156
Check Back Door Opener Switch (With Intelligent
Key) ...................................................................... .
157
Check Back Door Opener Switch (Without Intelli-
gent Key) ...............................................................
159
Check Unlock Sensor (Without Intelligent Key) ....160
Check Closure Motor ........................................... .161
Removal and Installation of Back Door Closer
Control Unit ...........................................................
162
VEHICLE SECURITY (THEFT WARNING)
SYSTEM ...........................................................
163
Component Parts and Harness Connector Loca-
tion ....................................................................... .
163
System Description ...............................................164
CAN Communication System Description ............166
CAN Communication Unit .....................................166
Schematic .............................................................167
Wiring Diagram - VEHSEC - .................................168
Terminal and Reference Value for BCM ...............173
Terminal and Reference Value for IPDM E/R .......174
CONSULT-III Function ..........................................174
Trouble Diagnosis .................................................176
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PRECAUTIONSBL-5
< SERVICE INFORMATION >
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612892
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering Wh eel Rotation After Battery Disconnect
INFOID:0000000001612889
NOTE:
 This Procedure is applied only to models with Intell igent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
 Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for WorkINFOID:0000000001327777
 After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check their
operation.
 Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.
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BL-18
< SERVICE INFORMATION >
RADIATOR CORE SUPPORT
RADIATOR CORE SUPPORT
Removal and InstallationINFOID:0000000001327787
REMOVAL
1. Remove the front fender protector. Refer to EI-24, "Component Parts Location".
2. Remove the front bumper. Refer to EI-14, "
Component Parts Location".
3. Remove the ICC. Refer to ACS-65
.
4. Remove the headlamp. Refer to LT-30, "
Removal and Installation".
5. Remove the washer tank. Refer to WW-28, "
Removal and Installation of Washer Tank".
6. Remove the resonator. Refer to EM-17
or EM-173.
7. Remove the power steering oil cooler. Refer to PS-37
.
8. Remove the ambient sensor. Refer to ATC-99, "
Removal and Installation".
9. Remove the crash zone sensor. Refer to SRS-42, "
Removal and Installation".
10. Remove the horn connector, cooling fan connector and harness clip.
11. Remove the hood lock and disconnect hood lock control cable. Refer to BL-15, "
Removal and Installation
of Hood Lock Control".
12. Remove the reservoir tank. Refer to CO-40, "
Removal and Installation" or CO-13, "Removal and Installa-
tion".
13. Remove mounting blots and remove radiator core support. Remove mounting bolts with power tool.
14. After remove radiator core suppor t, remove the horn, cooling fan.
1. Radiator core support assembly 2. Bolt 3. Bolt
4. Horn (High) 5. Air guide (RH) 6. Cooling fan
7. Air guide (LH) 8. Horn (Low)
PIIA6018E
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BL-80
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
 door switch OFF (when all the doors are closed);
Remote control button of Intelligent Key turns on interior lamp (for 30 seconds) with input of UNLOCK signal
from Intelligent Key.
Panic Alarm Function
When key switch is OFF and ignition knob is not pushed (when mechanical key is not inserted in ignition
knob), BCM turns ON and OFF horn and headlamp intermit tently with input of PANIC ALARM signal from
Intelligent Key. The alarm automatically turns off after 25 seconds or when Intelligent Key unit receives any
signal from Intelligent Key.
Panic alarm operation mode can be changed using “WORK SUPPORT” mode in “PANIC ALARM DELAY”.
Refer to BL-104, "
CONSULT-III Application Item".
Remote Control Power Window Down (Open) Operation
When Intelligent Key unlock switch is turned ON with i gnition switch OFF, and Intelligent Key unlock switch is
detected to be on continuously for 3 seconds, the driver's door and passenger's door power windows are
simultaneously opened.
Power window is operated to open and the operation continues as long as the Intelligent Key unlock switch is
pressed.
Remote control power window down operation mode can be changed using “P/W DOWN DELAY” mode in
“WORK SUPPORT”. Refer to BL-104, "
CONSULT-III Application Item".
Key Reminder Function
As an operation verification function, when doors are lock ed or unlocked using Intelligent Key remote control-
ler button operation, hazard lamps flash and horn sounds.
ENGINE STARTUP FUNCTION
Operation Description
 When ignition knob is pressed, Intelligent Key unit sends request signal from inside key antenna, key-ID ver- ification is conducted with Intelligent Key using two-wa y communication, and if verification is successful, an
ignition rotation prohibition latch release signal is sent to steering lock unit. Steering lock unit releases igni-
tion knob rotation prohibition latch. (Ignition knob can now be turned.)
 When it becomes possible to rotate the ignition knob, “KEY” warning lamp in combination meter lights up green to notify driver that ignition knob can be turned.
NOTE:
When it becomes impossible to rotate the ignition knob, “KEY” warning lamp in combination meter lights up
red.
 When key-ID verification is successful and ignition knob switch is in the ON state, Intelligent Key unit uses CAN communication to send engine start permission signal to BCM.
 When BCM receives engine start permission signal, it uses CAN communication to sent starter request sig-
nal to IPDM E/R so that the engine will start when ignition knob is rotated to START position.
Operation Range
Engine can be started when Intelligent Key is in the v ehicle. However, sometimes engine might not start when
Intelligent Key is on instrument panel, rear parcel shelf, or in glove box.
NOTE:
luggage room can enable detection of Intelligent Key by a CONSULT-III function. Refer to BL-104, "
CON-
SULT-III Application Item".
Active Check Function
Confirm whether or not ignition knob can be rotated by checking the color of warning lamp in combination
meter.
WARNING AND ALARM FUNCTION
Vehicle operation Hazard lamp Horn
Door unlocking operation Once —
Door locking operation Twice Once
Condition Operation
Ignition knob rotation possib le “KEY” warning lamp in combin ation meter is lit up green.
Ignition rotation not possibl e “KEY” warning lamp in combin ation meter is lit up red.
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INTELLIGENT KEY SYSTEMBL-99
< SERVICE INFORMATION >
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Terminal and Reference Valu e for INTELLIGENT KEY UNITINFOID:0000000001327842
Te r -
minal Wire
color Item Signal
Input/
output Condition
Voltage (V)(Approx.)
Ignition
knob po- sition Operation or conditions
1R/W Steering lock unit power
supply
Output LOCK — 5
2 L CAN-H Input/
Output —— —
3 P CAN-L Input/
Output —— —
4LG Intelligent Key warning
buzzer Output LOCKOperate remote
controller button or door request switch. Buzzer OFF Battery voltage
Sound
buzzer
0
5W/L Door request switch
(driver side) Input —Door request switch operation:
Press (ON).
0
Other than the above (OFF) 5
6 W Ignition switch (ON) Input ON or
START — Battery voltage
7 B/W key switch Input LOCK Insert mechanical key into igni-
tion key cylinder.
Battery voltage
Remove mechanical key from ig-
nition key cylinder. 0
10 LG Ignition switch (ACC) Input ACC or
ON — Battery voltage
11 L/R Power source (Fuse) Input — — Battery voltage
12 B Ground — — — 0
13 P Inside key antenna (+)
(Luggage room) Output
LOCKAny door open
→ all doors shut
(Door switch: ON → OFF)
14 L Inside key antenna (-)
(Luggage room)
Output
15 G Inside key antenna (+)
signal
(Dashboard) Output
LOCKAny door open
→ Close (Door
switch: ON → OFF)
Ignition knob switch: ON (press
ignition knob.)
16 R Inside key
antenna (-)
signal
(Dashboard) Output
17 L Back door antenna (+) Output
LOCKBack door request switch opera-
tion (Switch: ON)
18 W/L Back door antenna (-) Output
SIIA1910J
SIIA1910J
SIIA1910J
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INTELLIGENT KEY SYSTEMBL-101
< SERVICE INFORMATION >
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Terminal and Reference Va lue for Steering Lock unitINFOID:0000000001327843
Terminal and Reference Value for BCMINFOID:0000000001327844
39 R/Y Park position switch Input LOCK A/T selector lever in “P” position. 0
A/T selector lever in other posi-
tion.
Battery voltage
40 BR/
W Door lock relay Output LOCK Door request switch (passenger
side) pressedBattery voltage
→ 0 → Battery
voltage
Te r -
minal Wire
color Item Signal
Input/
output Condition
Voltage (V)(Approx.)
Ignition
knob po-
sition Operation or conditions
Te r -
minal Wire
color Item Signal
Input/
output Condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit pow-
er supply Input LOCK — 5
3R/B Steering lock unit com-
munication signal
Input LOCKPress ignition knob with In-
telligent Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— — 0
SIIA1911J
Te r m i -
nal Wire
color ItemSignal
Input/
output Condition
Voltage (V)
(Approx.)
1PU Key ring illumination
output signal OutputKey ring illumination is lighting. Battery voltage
Key ring illumination is being turned off. 0
12 P/B Front door switch (Pas-
senger side)
Input Door open (ON)
→ Close (OFF) 0 → Battery voltage
13 P/L Rear door switch RH Input Door open (ON) → Close (OFF) 0 → Battery voltage
37 B/W Key switch Input Insert mechanical key from ignition key
cylinder.
Battery voltage
Remove mechanical key from ignition
key cylinder. 0
38 W/L Ignition switch (ON) Input Ignition switch is in ON or START posi-
tion
Battery voltage
39 L CAN-H Input/
Output ——
40 P CAN-L Input/
Output ——
41 R/B Battery saver output
signal Output30 minutes after ignition switch is turned
to OFF
0
Ignition switch is in ON position Battery voltage
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BL-106
< SERVICE INFORMATION >
INTELLIGENT KEY SYSTEM
Trouble Diagnosis Symptom Chart
INFOID:0000000001327851
ALL FUNCTIONS OF THE INTELLIGENT KEY ARE NOT OPERATING
Selective door unlock function using Intelli-
gent Key remote controller button operation ××× ×××
Door lock/unlock operation using mechani-
cal key ×
Ignition knob rotation permission using In-
telligent Key ××× × × × × ×
Ignition knob rotation permission using me-
chanical 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 in-
side 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 ×× ×××
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 unitSto p l am p s w it ch Detention switch
Passenger side select unlock relay
Symptom Diagnoses service procedure Refer to page
“KEY” and “P shift” warning lamps in combination
meter do not light up at all. 1.
Check Intelligent Key unit power supply and ground cir-
cuit B L - 111
2. Check CAN co
mmunication BCS-13
3. Replace Intelligent Key unit BL-130
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INTELLIGENT KEY SYSTEMBL-109
< SERVICE INFORMATION >
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Mechanical Key Operation Inspection
WARNING CHIME FUNCTION MALFUNCTION
Before conducting the diagnosis in the following table, c
heck “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-130
2. Check inside key antennaBL-123
3. Replace Intelligent Key unitBL-130
KEY warning lamp on combination meter
lights up in green when ignition knob is
pressed.1. Check ignition knob switch
BL-1142. Check steering lock unitBL-124
3. Check Intelligent Key unit power supply and ground circuit B L - 111
4. Replace Intelligent Key unitBL-130
Ignition knob turns even without both Intelli-
gent Key and mechanical key.Replace steering lock unit —
Security indicator will still flash when ignition
knob is pressed. 1. Check key switch (Intelligent Key unit input)
BL-112
2. Replace Intelligent Key unitBL-130
Security indicator does not flash with ignition
knob released at LOCK position. (push
switch OFF)1. CAN communication system
BCS-13
2. Ignition knob switch system BL-114
3. Intelligent Key unit power supply and ground circuit B L - 111
Starter motor does not cranking.
(Ignition knob can turn)1. Check detention switch
BL-1262. Check stop lamp switchBL-126
3. Replace Intelligent Key unitBL-130
Symptom Diagnoses service procedure Refer to page
Ignition knob can not turn
Security indicator remains flashing with me-
chanical key inserted.1. Check key switch (BCM input)
BL-113
2. Replace Intelligent Key unitBL-130
KEY indicator and security indicator does
not flashing with mechanical key inserted. 1. Check stop lamp switch
BL-126
2. Replace Intelligent Key unitBL-130
Starter motor does not cranking.
(Ignition knob can turn)1. Check detention switch
BL-1262. Check stop lamp switchBL-126
3. Replace Intelligent Key unitBL-130
Symptom Diagnoses service procedure Refer to page
Ignition key warning chime is inoperative.
(When mechanical key used) 1. Check CAN communication
BCS-13
2. Check key switch (Intelligent Key unit input) BL-112
3. Check door switchBL-115
4. Inspect combination meter (warning) DI-5
5. Replace Intelligent Key unitBL-130
Ignition knob OFF position warning chime
(for inside vehicle) does not sound.
(Ignition key warning chime operates)1. Check CAN communication
BCS-132. Check ignition knob switch BL-114
3. Check key switch (Intelligent Key unit input)BL-112
4. Replace Intelligent Key unitBL-130
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BL-124
< 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 UnitINFOID: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 uni t 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)
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
4 (Y/B) - Ground : Continuity should exist.
PIIA6798E
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-191
< SERVICE INFORMATION >
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Terminal and Reference Value for Steeri ng Lock Unit/with Intelligent Key System
INFOID:0000000001327927
Terminal and Reference Value for Intelli gent Key Unit/with Intelligent Key System
INFOID:0000000001327928
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minal Wire
color Signal Designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit power
supply
Input LOCK — 5
3R/B Steering lock unit com-
munication signal Input LOCKPress ignition knob with Intel-
ligent Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground
—— — 0
SIIA1911J
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit power
supply Output LOCK — 5
2 L CAN-H Input/
Output —— —
3 P CAN-L Input/
Output —— —
6W Ignition power supply
(ON) Input ON
Ignition knob ON or START
position Battery voltage
7 B/W Key switch Input LOCK Insert mechanical key into
ignition key cylinder.
Battery voltage
Remove mechanical key
from ignition key cylinder. 0
11 L/R Power source (Fuse) Input — — Battery voltage
12 B Ground — — — 0
27 L/W Ignition knob switch Input — Press ignition knob. Battery voltage
Return ignition knob to
LOCK position.
0
31 Y/B Steering lock unit
ground —— — 0
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C