key battery INFINITI FX35 2008 Workshop Manual

BL-186
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
 In the vehicle with Intelligent Key system, security indicator always flashes with mechanical key removed
condition (key switch OFF) and ignition knob rel eased condition on LOCK position (ignition knob switch
OFF).
 Therefore, IVIS (NATS) warns outsiders that t he vehicle is equipped with the anti-theft system.
 If system detects malfunction, it turns on secu rity indicator in ignition switch ON position.
 If the owner requires, mechanical key ID can be registered for up to 5 keys.
 During trouble diagnosis or when the following parts have been replaced, and if ignition key or mechanical
key is added, registration* is required.
*: All keys kept by the owner of the vehicle s hould be registered with ignition key or mechanical key.
-ECM
-BCM
- Ignition key (models without Intelligent Key system)
- Mechanical key (models with Intelligent Key system)
 IVIS (NATS) trouble diagnoses, system initialization and addi tional registration of other IVIS (NATS) ignition
key or mechanical key IDs must be carried out usi ng CONSULT-III hardware and CONSULT-III IVIS (NATS)
software. When IVIS (NATS) initialization has been comple ted, the ID of the inserted ignition key or mechan-
ical key or mechanical key IDs can be carried out.
Regarding the procedures of IVIS (NATS) initializati on and ignition key or mechanical key ID registration,
refer to CONSULT-III operat ion manual, NATS-IVIS/NVIS.
SECURITY INDICATOR
 Warns that the vehicle has IVIS (NATS).
 In the vehicle without Intelligent Key system, security indicator always flashes with other than ignition switch
ON or START position. In the vehicle with Intelligent Key system, security indicator always flashes with
mechanical key removed condition (key switch OFF) and ignition knob released condition on LOCK position
(ignition knob switch OFF).
NOTE:
Because security indicator is highly efficient, the battery is barely affected.
Condition of Security Indicator
WITHOUT INTELLIGENT KEY SYSTEM
WITH INTELLIGENT KEY SYSTEM
 In ignition knob operation with Intelligent Key, it always turns on with pushing ignition knob, and always flashes with ignition knob released (ignition knob swit ch OFF) condition on ignition knob “LOCK” position.
 In ignition knob operation with mechanical key, it turns off on the condition that mechanical key is inserted in
key cylinder, and always flashes with ignition knob released (ignition knob switch OFF) condition on
mechanical key removed condition.
System CompositionINFOID:0000000001327924
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:
Security indicator
condition Ignition key
Operation or condition of ignition key
Ignition switch: ON position Ignition switch:
ACC position Ignition switch:
OFF position
(Key is inserted.) Ignition switch:
OFF position (Re- move key.)
Register key OFF Flashing Flashing Flashing
Ignition key not
registered ON Flashing Flashing Flashing
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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
Te r -
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
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BL-192
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Terminal and Reference Value for BCM
INFOID:0000000001327929
*: With Intelligent Key system
CONSULT-III FunctionINFOID:0000000001327930
CONSULT-III DIAGNOSTIC TEST MODE FUNCTION
NATS SELF-DIAGNOSTIC RESULT ITEM CHART
32 R/B Steering lock unit com-
munication signal Output LOCKPress ignition knob with In-
telligent Key inside vehicle.
Other than the above 5
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
SIIA1911J
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
21 G/B NATS antenna amp. Input/
Output —
Ignition knob OFF
→ ON po-
sition Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp Output LOCK Goes OFF
→ illuminates (Ev-
ery 2.4 seconds) Battery voltage
→ 0
25 BR NATS antenna amp. Input/
Output —Ignition knob or switch OFF
→
ON position Tester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch Input — Insert mechanical key into ig-
nition key cylinder
Battery voltage
Remove mechanical key
from ignition key cylinder 0
38 W/L Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
39 L CAN-H Input/
Output —— —
40 P CAN-L Input/
Output —— —
42 L/R Power source (Fuse) Input — — Battery voltage
49 B Ground — — — 0
52 B Ground — — — 0
55 G Power source (Fuse) Input — — Battery voltage
CONSULT-III DIAGNOSTIC TEST MODE Description
C/U INITIALIZATION When replacing any of the following three components, C/U initialization is necessary.
[IVIS (NATS) ignition key/ BCM/ ECM]
SELF- DIAGNOSTIC RESULTS Detected items (screen terms) are as shown in the chart.
PIN READ Individual control unit number can be read.
For future information,
refer to operation manual NATS-IVIS/NVIS
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-195
< SERVICE INFORMATION >
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Trouble Diagnosis Symptom ChartINFOID:0000000001327932
*: When IVIS (NATS) detects trouble, the security indica tor lights up while electronic key is in the “ON” position.
Security Indicator InspectionINFOID:0000000001327933
*: CONSULT-III self-diagnostic results display screen “no malfunction is detected”.
Diagnosis Procedure 1INFOID:0000000001327934
Self-diagnostic results:
“CHAIN OF ECM-IMMU” is display on CONSULT-III screen
First perform the “SELF-DIAG RESULTS” in “BCM” wi th CONSULT-III, then perform the trouble diag-
nosis of malfunction system indicated “SEL F-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
U1000
CAN Communication Circuit".
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU” is displayed on the screen?
Does CONSULT-III screen display as shown in figure?
SYMPTOM Displayed “SELF-DIAG
RESULTS” on CON- SULT-III screen. DIAGNOSTIC PROCE-
DURE SYSTEM (Malfunctioning part or mode)
 Security indicator lighting up*
 Engine hard to start CHAIN OF ECM-IMMU
[P1612] Refer to
BL-195, "
Diag-
nosis Procedure 1".Open circuit in battery voltage line to BCM (NATS
IMMU) circuit
Open circuit in ignition
line to BCM (NATS IMMU) cir-
cuit
Open circuit in ground line to BCM (NATS IMMU) cir-
cuit
Open or short circuit between BCM (NATS IMMU)
and ECM communication line.
ECM
BCM (NATS IMMU)
DIFFERENCE OF KEY [P1615] Refer to
BL-197, "
Diag-
nosis Procedure 2".Unregistered key
NATS IMMU
CHAIN OF IMMU-KEY [P1614] Refer to
BL-198, "
Diag-
nosis Procedure 5".Open or short circuit between BCM (NATS IMMU)
and NATS antenna amp.
Malfunction of key ID chip
BCM (NATS IMMU)
Antenna amp.
ID DISCORD, IMM-ECM [P1611] Refer to
BL-197, "
Diag-
nosis Procedure 3"
System initialization has not yet been completed.
ECM
LOCK MODE [P1610] Refer to
BL-197, "
Diag-
nosis Procedure 4".LOCK MODE
 MIL staying ON
 Security indicator lighting up* DON'T ERASE BEFORE
CHECKING ENG DIAG Refer to
BL-194, "
Diag-
nosis Procedure".Engine trouble data and IVIS (NATS) trouble data
have been detected in ECM
SYMPTOM
SYSTEM
(Malfunctioning part or mode) DIAGNOSTIC PROCEDURE
Security indicator does not operate* Security indicator
Refer to BL-200, "
Diagnosis
Procedure 6".
Open circuit between Fuse and BCM (NATS IM-
MU)
Continuation of initialization mode
BCM (NATS IMMU)
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-199
< SERVICE INFORMATION >
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NG >> Reinstall NATS antenna amp. correctly.
3.CHECK KEY ID CHIP
Start engine with another registered ignition key or mechanical key.
Does the engine start?
YES >> Ignition key or mechanical key ID chip is malfunctioning.  Replace the ignition key or mechanical key.
 Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT -III Operation Manual NATS–IVIS/NVIS”.
NO >> GO TO 4.
4.CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
Check voltage between NATS antenna amp. connector M25 terminal 1 (L/R) and ground with CONSULT-III or
tester.
OK or NG
OK >> GO TO 5.
NG >> Check harness for open or short between NATS antenna amp. and fuse.
5.CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
Check voltage between NATS antenna amp. connector M25 terminal 2 (G/B) and ground with analogue tester.
OK or NG
OK >> GO TO 6.
NG >>  Check harness for open or short between NATS antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.
6.CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector M 25 terminal 4 (BR) and ground with analogue tester.
OK or NG
OK >> GO TO 7.
NG >>  Check harness for open or short between NATS antenna amp. and BCM.
NOTE:
If harness is OK, replace BCM, perform initialization
with CONSULT-III. For initialization, refer to “CONSULT-III Operation Manual NATS–IVIS/NVIS”.
1 (L/R) – Ground : Battery voltage
PIIA6145E
Before inserting mechani
cal key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6146E
Before inserting mechani cal key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6147E
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UNIFIED METER AND A/C AMPDI-29
< SERVICE INFORMATION >
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NOTE:
Monitored item that does not match the vehicle is deleted from the display automatically.
*1: It dose not change when fastening or unfastening the passenger seat belt.
*2: Monitor keeps indicating “off” when brake warning lamp is on by the parking brake operation or low brake fluid level.
Power Supply and Gro und Circuit InspectionINFOID:0000000001328459
1.CHECK FUSE
Check for blown unified meter and A/C amp. fuses.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-3, "
Schematic".
2.CHECK POWER SUPPLY CIRCUIT
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]
*2X 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.
BRAKE SW [On/Off] X Indicates [On/Off] condition of brake switch (stop lamp switch).
AT-M IND [On/Off] X X Indicates [On/Off] condition of A/T manual mode indicator.
AT-M GEAR [5-1] X X Indicates [5-1] condition of A/T manual mode gear position.
P RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift P range indicator.
R RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift R range indicator.
N RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift N range indicator.
D RANGE IND [On/Off] X X Indicates [On/Off] condition of A/T shift D range indicator.
AT CHECK W/L X Indicates [On/Off] cond ition of AT CHECK warning lamp.
CRUISE IND [On/Off] X Indicates [On/Off] condition of CRUISE indicator lamp.
SET IND [On/Off] X Indicates [On/Off] condition of SET indicator lamp.
CRUISE W/L [On/Off] X Indicates [On/Of f] condition of ICC warning lamp.
4WD LOCK SW [On/Off] X This item is not used for this model. “off” is always displayed.
4WD LOCK IND [On/Off] X This item is not used for this model. “off” is always displayed.
4WD W/L [On/Off] X Indicates [On/Off] condition of AWD warning lamp.
RR COMB STATE [OK/NG] X Indicates [OK/NG] condition of rear combination lamp circuit. Display item [Unit]
MAIN
SIGNALS SELECTION
FROM MENU Contents
Power source Fuse No.
Battery power supply 19 ACC power supply 10, 11
Ignition power supply 12
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DI-58
< SERVICE INFORMATION >
WARNING CHIME
Te r -mi-
nal
No. Wire
color Item Measuring condition
Reference value
Igni-
tion
switc h Operation or condition
2G/Y Combination switch
input 5 ONLighting, turn, wiper switch
(Wiper intermittent dial posi-
tion 4) OFF Approx. 0 V
Lighting switch
1ST
Approx. 1.0 V
33 G Combination switch
output 4 ONLighting, turn, wiper switch
(Wiper intermittent dial posi-
tion 4) OFF
Approx. 7.2 V
Lighting switch
1ST Approx. 1.2 V
37 B/W Key switch signal OFF When key is removed to ignition key cylinder. Approx. 0 V
When key is inserted to ignition key cylinder. Battery voltage
38 W/L Ignition power supply ON — Battery voltage
39 L CAN-H OFF — —
40 P CAN-L OFF — —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52
55 G Battery power supp ly OFF — Battery voltage
62 W Front door switch DR
signal
OFF Front door switch DR ON (open) Approx. 0 V
OFF (closed)
Approx. 7.0 - 7.5 V
PKIB4959J
PKIB4960J
PKIB4958J
PKIB4960J
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DI-62
< SERVICE INFORMATION >
WARNING CHIME
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse or fusible link. Refer to PG-3
.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between BCM harness connector terminals and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between BCM and fuse.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM harness connector M35 terminal 52 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Combination Meter Buzzer Circuit InspectionINFOID:0000000001328485
1.CHECK OPERATION OF COMBINATION METER BUZZER
1. Select “BUZZER” of “BCM” on CONSULT-III.
2. Perform “LIGHT WARN ALM”, “IGN KEY WARN AL M” or “SEAT BELT WARN TEST” of “Active Test”.
Does chime sound?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. Operate switches to meet the requirements to s ound warning chime with “BUZZER” of “Data Monitor” and
check operation status.
Power source Fuse and fusible link No.
Battery power supply M
22
Ignition power supply 1
Terminals Ignition switch position
(+) (–) OFF ON
Connector Terminal
M34 38 Ground0 V Battery voltage
M35 42
Battery voltage Battery voltage
55
PKIB3988E
52 – Ground : Continui ty should exist.
PKIB5011E
“BUZZER”
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WARNING CHIMEDI-65
< SERVICE INFORMATION >
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2. Check continuity between BCM harness connector M3 terminal 37 and key switch harness connector M23 terminal 1.
3. Check continuity between BCM harness connector M3 terminal 37 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK KEY SWITCH POWER SUPPLY CIRCUIT
Check voltage between key switch harness connector M23 terminal
2 and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installa-
tion of BCM".
NG >> Check harness between key switch and fuse.
Key Switch and Ignition Knob Switch Signal Inspection (With Intelligent Key, When Me-
chanical Key Is Used)
INFOID:0000000001328488
1.CHECK BCM INPUT SIGNAL
With CONSULT-III
1. Select “BCM” on consult-III.
2. With “Data Monitor” of “BUZZER”, conf irm “KEY ON SW” when the key is operated.
Without CONSULT-III
Check voltage between BCM harness connector M3 terminal 37 and ground.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK KEY SWITCH AND IG NITION KNOB SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and i gnition knob switch connector.
3. Check key switch and ignition knob switch. Refer to DI-67, "
Component Inspection".
37 – 1 : Continuity should exist.
37 – Ground : Continuity should not exist.
PKIB3833E
2 – Ground : Battery voltage
SKIA5051E
“KEY ON SW”
When key is inserted to ignition
key cylinder
: On
When key is removed from igni-
tion key cylinder : Off
37 – Ground
When key is inserted to ignition
key cylinder: Approx. 12 V
When key is removed from igni-
tion key cylinder : Approx. 0 V
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DI-66
< SERVICE INFORMATION >
WARNING CHIME
OK or NG
OK >> GO TO 3.
NG >> Replace key switch and ignition knob switch.
3.CHECK KEY SWITCH AND IGNITION KNOB SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M3 terminal 37 and key switch and ignition knob switch harness connector
M22 terminal 4.
3. Check continuity between BCM harness connector M3 terminal 37 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK KEY SWITCH PO WER SUPPLY CIRCUIT
Check voltage between key switch and ignition knob switch harness
connector M22 terminal 3 and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installa-
tion of BCM".
NG >> Check harness between key switch and ignition knob switch and fuse.
Lighting Switch Signal InspectionINFOID:0000000001328489
1.CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-III.
2. With “Data Monitor” of “BUZZER”, confirm “LIG HT SW 1ST” when the lighting switch is operated.
OK or NG
OK >> INSPECTION END
NG >> Check the lighting switch. Refer to LT-104, "
Combination Switch Inspection".
Seat Belt Buckle Switch (Driver Side) Signal InspectionINFOID:0000000001328490
1.CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER/M&A” on CONSULT-III.
2. With “Data Monitor” of “MET ER/M&A”, confirm “SEAT BELT W/L” when the seat belt is operated.
37 – 4 : Continuity should exist.
37 – Ground : Continuity should not exist.
PKIB3578E
3 – Ground : Battery voltage
SKIA5063E
“LIGHT SW 1ST”
Lighting switch ON (1st position) : On
Lighting switch OFF : Off
“SEAT BELT W/L”
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