Key switch INFINITI FX35 2005 Service Manual

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-215
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Revision: 2005 July 2005 FX
System CompositionAIS004PC
The immobilizer function of the IVIS (NATS) consists of the following:

Ignition key (models without Intelligent Key system)

Mechanical key (models with Intelligent Key system)

NATS antenna amp.

Steering lock unit. (models with Intelligent Key system)

BCM

Intelligent Key unit (models with Intelligent Key system)

Engine control module (ECM)

Security indicator
NOTE:
The communication between ECM, BCM and/or Intelligent Key unit uses the CAN communication sys-
tem.
ECM Re-Communicating FunctionAIS004PD
Performing following procedure can automatically perform re-communication of ECM and BCM or Intelligent
Key unit, but only when the ECM has been replaced with a new one (*1).
*1: New one means a virgin ECM which has never been energized on-board.
(In this step, initialization procedure by CONSULT-II is not necessary)
NOTE:

When registering new Key IDs or replacing the ECM other than brand new, refer to CONSULT-II
Operation Manual NATS-IVIS/NVIS.

If multiple keys are attached to the key holder, separate them before work.

Distinguish keys with unregistered key ID from those with registered ID.
1. Install ECM.
2. Using a registered key (*2), turn ignition switch to “ON”. *2: To perform this step, use the key that has been used before performing ECM replacement.
3. Maintain ignition switch in “ON” position for at least 5 seconds.
4. Turn ignition switch to “OFF”.
5. Start engine. If engine can be started, procedure is completed.
If engine cannot be started, refer to CONSULT-II Operation Manual NATS-IVIS/NVIS and initialize control
unit.
PIIA6948E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-219
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Revision: 2005 July 2005 FX
Terminals and Reference Value for Steering Lock Unit/with Intelligent Key Sys-
tem
AIS004PF
Terminals and Reference Value for Intelligent Key Unit/with Intelligent Key Sys-
tem
AIS004PG
Te r -
minal
No. Wire
color Signal Designation Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) LOCK — Battery voltage
2R/W Steering lock unit
power supply LOCK — 5
3R/B Steering lock unit com-
munication signal LOCK Press ignition knob with Intelligent Key
inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— 0
SIIA1911J
Te r -
minal
No. Wire
color Signal designation Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit
power supply LOCK — 5
2 L CAN-H — — —
3 R CAN-L — — —
6G/R Ignition power supply
(ON) ON Ignition knob ON or START position Battery voltage
7 B/W Key switch LOCK Insert mechanical key into ignition key
cylinder. Battery voltage
Remove mechanical key from ignition
key cylinder. 0
11 L/R Power source (Fuse) — — Battery voltage
12 B Ground — — 0
27 L/W Ignition knob switch — Press ignition knob. Battery voltage
Return ignition knob to LOCK position. 0
31 Y/B Steering lock unit
ground —— 0
32 R/B Steering lock unit com-
munication signal LOCK Press ignition knob with Intelligent Key
inside vehicle.
Other than the above 5
SIIA1911J

BL-220
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
Terminals and Reference Value for BCMAIS004PH
*: With Intelligent Key system Te r -
minal No. Wire
color Signal designation Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
21 G/B NATS antenna apm. — Ignition knob OFF → ON position Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp LOCK Goes OFF
→ illuminates (Every 2.4
seconds) Battery voltage
→ 0
25 BR NATS antenna amp. — Ignition knob or switch OFF
→ ON posi-
tion Tester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch — Insert mechanical key into ignition key
cylinder Battery voltage
Remove mechanical key from ignition
key cylinder 0
38 W/L Ignition power supply
(ON) ON Ignition knob ON or START position Battery voltage
39 L CAN-H — — —
40 R CAN-L — — —
42 L/R Power source (Fuse) — — Battery voltage
49 B Ground — — 0
52 B Ground — — 0
55 G Power source (Fuse) — — Battery voltage

BL-228
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
4. CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Check continuity between BCM connector M4 terminals 49 (B), 52 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between BCM and ground.
5. REPLACE BCM
1. Replace BCM.
2. Perform initialization with CONSULT-II. For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
YES >> BCM is malfunctioning.

Replace BCM.

Perform initialization with CONSULT-II.

For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
NO >> ECM is malfunctioning.

Replace ECM.

Perform initialization or re-communicating function.
–For re-communicating function, refer to BL-215, "ECM Re-Communicating Function" .
–For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
Diagnostic Procedure 3AIS004PO
Self-diagnostic results:
“DIFFERENCE OF KEY” is displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “DIFFERENCE OF
KEY” is displayed on CONSULT-II screen.
Does CONSULT-II screen display as shown in figure?
YES >> GO TO 2.
NO >> GO TO BL-225, "
Trouble Diagnosis Symptom Chart" .
49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA5084E
PIIA1261E

BL-230
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2005 July 2005 FX
Diagnostic Procedure 5AIS004PQ
Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “LOCK MODE” is displayed
on CONSULT-II screen.
Does CONSULT-II screen display as shown in figure?
YES >> GO TO 2.
NO >> GO TO BL-225, "
Trouble Diagnosis Symptom Chart" .
2. ESCAPE FROM LOCK MODE
1. Turn ignition switch OFF.
2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
3. Return the key to OFF position. Wait 5 seconds.
4. Repeat steps 2 and 3 twice (total of three cycles).
5. Start the engine.
Does engine start?
YES >> System is OK (Now system is escaped from “LOCK MODE”).
NO >> GO TO 3.
3. PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS-
IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunction, CONSULT-II
shows the message on the screen.
Can the system be initialized?
YES >> System is OK.
NO >> GO TO 4.
PIIA1264E
SEL297W

DI-2Revision: 2005 July 2005 FX
Oil Pressure Warning Lamp Does Not Turn Off (Oil
Pressure Is Normal) ............................................. ... 52
Component Inspection ......................................... ... 53
OIL PRESSURE SWITCH ................................ ... 53
A/T INDICATOR ..................................................... ... 54
Wiring Diagram — AT/IND — .............................. ... 54
A/T Indicator Is Malfunction ................................. ... 56
WARNING CHIME .................................................. ... 58
System Description .............................................. ... 58
FUNCTION ....................................................... ... 58
IGNITION KEY WARNING CHIME (WITHOUT
INTELLIGENT KEY) ......................................... ... 58
IGNITION KEY WARNING CHIME (WITH INTEL-
LIGENT KEY) ................................................... ... 59
LIGHT WARNING CHIME ................................ ... 59
SEAT BELT WARNING CHIME ........................ ... 59
CAN Communication System Description ........... ... 60
CAN Communication Unit .................................... ... 60
Component Parts and Harness Connector Location ... 61
Schematic ............................................................ ... 62
Wiring Diagram — CHIME — .............................. ... 63
Terminals and Reference Value for BCM ............. ... 66
Terminals and Reference Value for Unified Meter
and A/C Amp. ...................................................... ... 67
Terminals and Reference Value for Combination
Meter ................................................................... ... 67
Trouble Diagnosis ................................................ ... 68
HOW TO PERFORM TROUBLE DIAGNOSIS . ... 68
PRELIMINARY CHECK .................................... ... 68
CONSULT-II Function (BCM) ............................... ... 69
DIAGNOSTIC ITEMS DESCRIPTION .............. ... 69
CONSULT-II BASIC OPERATION PROCEDURE
... 69
DATA MONITOR ............................................... ... 70
ACTIVE TEST .................................................. ... 70
SELF-DIAGNOSTIC RESULTS ........................ ... 71
All Warnings Are Not Operated ........................... ... 71
Key Warning Chime and Light Warning Chime Does
Not Operate (Seat Belt Warning Chime Does Oper-
ate) ...................................................................... ... 72
Key Warning Chime Does Not Operate (Without
Intelligent Key) ..................................................... ... 73
Key Warning Chime Does Not Operate (With Intel-
ligent Key, When Mechanical Key Is Used) ......... ... 75
Key Warning Chime Does Not Operate (With Intel-
ligent Key, When Intelligent Key Is Carried With The
Driver) .................................................................. ... 77
Light Warning Chime Does Not Operate ............. ... 79
Seat Belt Warning Chime Does Not Operate ...... ... 80
LANE DEPARTURE WARNING SYSTEM ............. ... 82
Precautions for Lane Departure Warning (LDW)
system ................................................................. ... 82
System Description .............................................. ... 82
LDW SYSTEM OPERATION ............................ ... 82
POWER SUPPLY AND GROUND CIRCUIT .... ... 84
CAN Communication ........................................... ... 84
SYSTEM DESCRIPTION ................................. ... 84
CAN COMMUNICATION UNIT ......................... ... 85
Action Test ........................................................... ... 85 LDW SYSTEM RUNNING TEST ......................
... 85
Camera Aiming Adjustment ................................. ... 86
OUTLINE .......................................................... ... 86
PREPARATION ................................................. ... 86
TARGET SETTING ........................................... ... 86
VEHICLE HEIGHT CHECK .............................. ... 89
AIMING ADJUSTMENT .................................... ... 89
Component Parts and Harness Connector Location ... 93
Schematic ............................................................ ... 94
Wiring Diagram — LDW — .................................. ... 95
Terminals and Reference Value for LDW Camera
Unit ....................................................................... ... 98
CONSULT-II Function (LDW) ............................... ... 98
DESCRIPTION ................................................. ... 98
CONSULT-II BASIC OPERATION .................... ... 98
WORK SUPPORT ............................................ ... 99
SELF-DIAG RESULTS ...................................... ... 99
DATA MONITOR ............................................... .100
ACTIVE TEST ................................................... .101
Trouble Diagnosis ................................................ .102
HOW TO PERFORM TROUBLE DIAGNOSIS . .102
SYMPTOM CHART ........................................... .102
Preliminary Inspection .......................................... .103
Power Supply and Ground Circuit Inspection ...... .104
DTC [C1B00] CAMERA UNIT MALF ................... .104
DTC [C1B01] CAM AIMING INCMP .................... .104
DTC [C1B02] VHCL SPD DATA MALF ................ .105
DTC [C1B03] ABNRML TEMP DETECT ............. .105
DTC [U1000] CAN COMM CIRCUIT ................... .105
DTC [U1010] CONTROL UNIT (CAN) ................. .105
LDW Chime Circuit Inspection ............................. .106
LDW Switch Circuit Inspection ............................. .107
LDW Indicator Lamp Circuit Inspection ................ .109
Turn Signal Input Inspection ................................ .110
Removal and Installation for LDW Camera Unit .. . 111
REMOVAL ......................................................... . 111
INSTALLATION ................................................. . 111
Removal and Installation for LDW Chime ............ . 111
REMOVAL ......................................................... . 111
INSTALLATION ................................................. . 111
Removal and Installation for LDW Switch ............ . 111
CLOCK ................................................................... .112
Wiring Diagram — CLOCK — .............................. .112
Removal and Installation of Clock ........................ .113
REMOVAL ......................................................... .113
INSTALLATION ................................................. .113
REAR VIEW MONITOR .......................................... .114
System Description .............................................. .114
POWER SUPPLY AND GROUND .................... .114
AV COMMUNICATION LINE ............................ .114
REAR VIEW CAMERA OPERATION ............... .114
Component Parts and Harness Connector Location .115
Schematic ............................................................ .116
Wiring Diagram — R/VIEW — ............................. .117
Terminals and Reference Value for Rear View Cam-
era Control Unit .................................................... .120
CONSULT-II Function (REARVIEW CAMERA) ... .121
CONSULT-II BASIC OPERATION .................... .121
WORK SUPPORT ............................................ .122

DI-32
UNIFIED METER AND A/C AMP
Revision: 2005 July 2005 FX
SELF-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Self-diagnosis results are displayed.
Display Item List
“TIME” indicates the condition of the self-diagnostic results judged by each signal input.

Normal: In case of operating properly at the present in spite of having malfunction in the past, then “TIME”
indicates “1-63”.

Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, “0” is indicated.
After returning to normal condition, every time when ignition switch is turned to “OFF” from “ON”, time will be
added like “1” →“2” →“3”···“63”, and when the key operation is performed 64 times, the result of the self-diag-
noses will be erased. And if any malfunction is detected again, “0” will be indicated.
CAUTION:
“TIME” keeps showing “0” after returning to normal condition only in the case that malfunction his-
tory of “CAN COMM CIRC [U1000]” remains because of low tire pressure warning control unit, display
control unit (with NAVI) or display unit (without NAVI) malfunction.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “MAIN SIG- NALS” is selected, main items will be monitored.
SKIA4956E
CONSULT-ll display Malfunction is detected when... Reference
page
CAN COMM CIRC [U1000] Malfunction is detected in CAN communication.
CAUTION:
Even when there is no malfunction on CAN communication system, malfunction
may be misinterpreted when battery has low voltage (when maintaining 7 - 8 V
for about 2 seconds) or 10A fuse [No. 19, located in the fuse block (J/B)] is dis-
connected. DI-34
METER COMM CIRC [B2202]
Malfunction is detected in communication of between combination meter and unified
meter and A/C amp. DI-34
VEHICLE SPEED CIRC [B2205] When an erroneous speed signal is input for 1 second.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about
2 seconds). DI-37
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.

UNIFIED METER AND A/C AMP DI-33
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4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni- tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
SKIA4957E
Display item [Unit] MAIN
SIGNALS SELECTION
FROM MENU Contents
SPEED METER [km/h] or [mph] X X This is the angle correction value after the speed signal from the
ABS actuator and electric unit (control unit) is converted into the
vehicle speed.
SPEED OUTPUT [km/h] or [mph] X X This is the angle correction value before the speed signal from
the ABS actuator and electric unit (control unit) is converted into
the vehicle speed.
TACHO METER [rpm] X X This is the converted value for the engine speed signal from the
ECM.
W TEMP METER [ °C] or [ °F] X X This is the converted value for the engine coolant temperature
signal from the ECM.
FUEL METER [lit.] X X This is the processed value for the signal (resistance value)
from the fuel gauge.
DISTANCE [km] or [mile] X X This is the calculated value for the speed signal from the ABS
actuator and electric unit (control unit), the signal (resistance
signal) from the fuel gauge and fuel consumption signal from
ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Indicates [ON/OFF] condition of malfunction indicator lamp.
AIR PRES W/L [ON/OFF] X Indicates [ON/OFF] condition of low tire pressure warning lamp.
SEAT BELT W/L [ON/OFF] X Indicates [ON/OFF] condition of seat belt warning lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
OIL W/L [ON/OFF] X Indicates [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] X Indicates [ON/OFF] condition of VDC OFF indicator lamp.
ABS W/L [ON/OFF] X Indicates [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Indicates [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF] X Indicates [ON/OFF] condition of brake warning lamp.*
KEY G W/L [ON/OFF] X Indicates [ON/OFF] condition of key warning lamp (green).
KEY R W/L [ON/OFF] X Indicates [ON/OFF] condition of key warning lamp (red).
KEY KNOB W/L [ON/OFF] X Indicates [ON/OFF] condition of key knob warning lamp.
M RANGE SW [ON/OFF] X X Indicates [ON/OFF] condition of manual mode range switch.
NM RANGE SW [ON/OFF] X X Indicates [ON/OFF] condition of except for manual mode range
switch.
AT SFT UP SW [ON/OFF] X X Indicates [ON/OFF] condition of A/T shift-up switch.
AT SFT DWN SW [ON/OFF] X X Indicates [ON/OFF] condition of A/T shift-down switch.

DI-38
COMPASS
Revision: 2005 July 2005 FX
COMPASSPFP:24835
System DescriptionAKS007AO
This unit displays earth magnetism and heading direction of vehicle.
DIRECTION DISPLAY
Push the switch when the ignition key is in the “ON” or “START” position. The direction will be displayed.
Pushing the “COMP” switch a second time will turn off the display.
1. If the display reads “C” calibrate the compass by driving the vehicle in 3 complete circles at less than 8 km/h (5 MPH).
2. To adjust for compass variance:
a. Press the “COMP” switch for more than 3 seconds. The current zone number will appear in the display.
b. Find your current location and variance zone number on the zone map.
c. Press the “COMP” switch until the new zone number appears in the display. After you stop pressing the button in, the display will show a compass direction within a few seconds.
NOTE:
1. Do not install the ski rack, antenna, etc. which are attached to the vehicle by means of a magnet. They affect the operation of the compass.
2. If the compass deviates from the correct indication soon after repeated adjustment, have the compass checked at an authorized dealer.
3. The compass may not indicate the correct compass point in tunnels or while driving up or down a steep hill. (The compass returns to the correct compass point when the vehicle moves to an area where the
geomagnetism is stabilized.)
3. Cleaning the Mirror When cleaning the mirror, use a paper towel or similar material dampened with glass cleaner. Do not
spray glass cleaner directly on the mirror as that may cause the liquid cleaner to enter the mirror housing.
“C” is displayed in the compass window.
SKIA5335E

DI-58
WARNING CHIME
Revision: 2005 July 2005 FX
WARNING CHIMEPFP:24814
System DescriptionAKS005NL
FUNCTION
Power is supplied at all times

through 50A fusible link (letter M , located in the fuse and fusible link block)

to BCM terminal 55,

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

to key switch and ignition knob switch terminal 3 (with Intelligent Key)

to key switch terminal 2 (without Intelligent Key), and

to BCM terminal 42,

through 10A fuse [No. 38, located in the fuse and fusible link block (with Intelligent Key)]

to key switch and ignition knob switch terminal 1,

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

to unified meter and A/C amp. terminal 21, and

to combination meter terminal 8.
When ignition switch is in ON or START position, power is supplied

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

to BCM terminal 38,

through 10A fuse [No. 12, located in the fuse block (J/B)]

to unified meter and A/C amp. terminal 22,

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 7.
Ground is supplied

to BCM terminals 49 and 52,

to unified meter and A/C amp. terminals 29 and 30, and

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
NOTE:
When ignition key warning chime, light warning chime, and seat belt warning chime should be performed at
the same time, the priorities for each chime are the following.
1. Seat belt warning chime
2. Light warning chime
3. Ignition key warning chime
IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)
With the key inserted into the ignition switch, and the ignition switch OFF or ACC, when driver's door is
opened, the warning chime will sound.
Power is supplied

through key switch terminal 1

to BCM terminal 37.
Ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1.
Front door switch (driver side) is case grounded.
BCM detects key inserted into the ignition switch, and sends key warning signal to unified meter and A/C amp.
with CAN communication line. Unified meter and A/C amp. sends key warning signal to combination meter
with communication line between unified meter and A/C amp. and combination meter.
When combination meter receives key warning signal, it sounds warning chime.