2007 INFINITI FX35 key battery

BL-212
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for BCMNIS001PR
*: With Intelligent Key system 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
position Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp Output LOCK Goes OFF
→ illuminates
(Every 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
ignition 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

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-217
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Revision: 2006 July 2007 FX35/FX45
Trouble Diagnosis Symptom ChartNIS001PU
*: When IVIS (NATS) detects trouble, the security indicator lights up while electronic key is in the “ON” position.
Security Indicator InspectionNIS001PV
*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”. SYMPTOM
Displayed “SELF-DIAG
RESULTS” on CON- SULT-II 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-218, "
Diag-
nostic Procedure 1" . Open circuit in battery voltage line to BCM (NATS
IMMU) circuit
Open circuit in ignition line to BCM (NATS IMMU)
circuit
Open circuit in ground line to BCM (NATS IMMU)
circuit
Open or short circuit between BCM (NATS IMMU)
and ECM communication line.
ECM
BCM (NATS IMMU)
DIFFERENCE OF KEY [P1615] Refer to
BL-219, "
Diag-
nostic Procedure 2" . Unregistered key
NATS IMMU
CHAIN OF IMMU-KEY
[P1614] Refer to
BL-222, "
Diag-
nostic 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-220, "
Diag-
nostic Procedure 3"
System initialization has not yet been completed.
ECM
LOCK MODE [P1610] Refer to
BL-221, "
Diag-
nostic Procedure 4" . LOCK MODE

MIL staying ON

Security indicator
lighting up* DON'T ERASE
BEFORE CHECKING
ENG DIAG Refer to
BL-216, "WORK FLOW" . 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-224, "
Diagnostic
Procedure 6" .
Open circuit between Fuse and BCM (NATS
IMMU)
Continuation of initialization mode
BCM (NATS IMMU)

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-223
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Revision: 2006 July 2007 FX35/FX45
4. CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
Check voltage between NATS antenna amp. connector M25 terminal 1 (L/R) and ground with CONSULT-II 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-II. For initialization, refer to “CONSULT-II Operation Manual NATS–IVIS/NVIS”.
6. CHECK NATS ANTENNA AMP. SIGNAL LINE- 2
Check voltage between NATS antenna amp. connector M25 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-II. For initialization, refer to “CONSULT-II Operation Manual NATS–IVIS/NVIS”.
1 (L/R) – Ground : Battery voltage
PIIA6145E
Before inserting mechanical key in ignition knob
Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6146E
Before inserting mechanical key in ignition knob Voltage: 0V
Just after inserting mechanical key in ignition knob : Pointer of tester should move.
PIIA6147E

UNIFIED METER AND A/C AMP DI-33
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Revision: 2006 July 2007 FX35/FX45
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 Ground Circuit InspectionNKS003HN
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, "
POWER
SUPPLY ROUTING CIRCUIT" .
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] condition 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/OFF] 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

DI-64
WARNING CHIME
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for BCMNKS0030P
CAUTION:

Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal and wiper switch OFF not to be fluctuated by overloaded.

Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to LT- 11 7 , "
DATA MONITOR" .
Te r -
mina l No. Wire
color Item Measuring condition
Reference value
Igni-
tion
switc h Operation or condition
2 G/Y Combination switch
input 5 ON Lighting, 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 ON Lighting, turn, wiper switch
(Wiper intermittent dial posi-
tion 4) OFF
Approx. 7.2 V
Lighting switch
1ST (The same
result with light-
ing switch 2ND)
Approx. 1.2 V
37 B/W Key switch signal OFF Key is removed Approx. 0 V
Key is inserted 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 supply OFF — Battery voltage
PKIB4959J
PKIB4960J
PKIB4958J

DI-68
WARNING CHIME
Revision: 2006 July 2007 FX35/FX45
PRELIMINARY INSPECTION
1. CHECK BCM (CONSULT-II)
Perform self-diagnosis of BCM. Refer to DI-66, "
CONSULT-II Function (BCM)" .
Self
-diagnosis results
No malfunction detected >> GO TO 2.
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
2. CHECK UNIFIED METER AND A/C AMP. (CONSULT-II)
Perform self-diagnosis of unified meter and A/C amp. Refer to DI-31, "
CONSULT-II Function (METER A/C
AMP)" .
Self
-diagnosis results
No malfunction detected >> INSPECTION END
Malfunction detected >> Check applicable parts, and repair or replace corresponding parts.
Symptom ChartNKS003I2
Power Supply and Ground Circuit InspectionNKS003I3
1. CHECK FUSE AND FUSIBLE LINK
Check for blown BCM fuses and fusible link.
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,
"POWER SUPPLY ROUTING CIRCUIT" .
Symptom Diagnoses/Service procedure
All warning chimes do not activate. Perform the following inspections.
1. DI-69, "
Combination Meter Buzzer Circuit Inspection".
2. DI-68, "
Power Supply and Ground Circuit Inspection".
Replace BCM, found normal function in the above inspections.
Ignition key
warning chime
does not acti-
vate. Without Intelligent Key.
Perform the following inspections.
1. DI-71, "
Front Door Switch (Driver Side) Signal Inspection".
2. DI-72, "
Key Switch Signal Inspection (Without Intelligent Key)".
Replace BCM, found normal function in the above inspections.
With Intelligent Key, when mechan-
ical key is used. Perform the following inspections.
1. DI-71, "
Front Door Switch (Driver Side) Signal Inspection".
2. DI-73, "
Key Switch and Ignition Knob Switch Signal Inspection (With Intelli-
gent Key, When Mechanical Key Is Used)".
Replace BCM, found normal function in the above inspections.
With Intelligent Key, when Intelli-
gent Key is carried with the driver. Refer to
BL-121, "
WARNING CHIME FUNCTION MALFUNCTION" .
Light warning chime does not activate. Perform the following inspections.
1. DI-71, "
Front Door Switch (Driver Side) Signal Inspection".
2. LT- 11 8 , "
Combination Switch Inspection".
Replace BCM, found normal function in the above inspections.
Seat belt warning chime does not activate. Perform
DI-75, "
Seat Belt Buckle Switch (Driver Side) Signal Inspection" .
Replace BCM, found normal function in the above inspection.
Power source Fuse and fusible link No.
Battery power supply M
22
Ignition power supply 1

WARNING CHIME DI-69
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Revision: 2006 July 2007 FX35/FX45
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 InspectionNKS003I4
1. CHECK OPERATION OF COMBINATION METER BUZZER
1. Select “BUZZER” of “BCM” on CONSULT-ll.
2. Perform “LIGHT WARN ALM”, “IGN KEY WARN ALM” or “SEAT BELT WARN TEST” of “ACTIVE TEST”.
Does chime sound?
YES >> GO TO 4.
NO >> GO TO 2.
Terminals Ignition switch position
(+) (–) OFF ON
Connector Terminal
M34 38 Ground 0 V Battery voltage
M35 42
Battery voltage Battery voltage
55
PKIB3988E
52 – Ground : Continuity should exist.
PKIB5011E
SKIA6331E

WARNING CHIME DI-73
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Revision: 2006 July 2007 FX35/FX45
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-14, "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 Mechanical Key Is Used)
NKS003I7
1. CHECK BCM INPUT SIGNAL
With CONSULT-ll
1. Select “BCM”.
2. With “DATA MONITOR” of “BUZZER”, confirm “KEY ON SW” when the key is operated.
Without CONSULT-ll
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 IGNITION KNOB SWITCH
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check key switch and ignition knob switch. Refer to DI-76, "
KEY SWITCH AND IGNITION KNOB
SWITCH" .
OK or NG
OK >> GO TO 3.
NG >> Replace key switch and ignition knob switch. 2 – Ground : Battery voltage
SKIA5051E
“KEY ON SW”
When key is inserted to ignition
key cylinder : ON
When key is removed from
ignition key cylinder : OFF
SKIA1960E
37 – Ground
When key is inserted to ignition
key cylinder : Approx. 12 V
When key is removed from
ignition key cylinder : Approx. 0 V
SKIA5048E