2007 INFINITI FX35 key

WARNING CHIME DI-57
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Revision: 2006 July 2007 FX35/FX45
IGNITION KEY WARNING CHIME (WITHOUT INTELLIGENT KEY)
With the key inserted into the key switch, and the ignition switch in OFF or ACC position, when driver's door is
opened, the ignition key warning chime will sound.

BCM detects key inserted into the key switch, ignition switch in OFF or ACC position, and front door
switch (driver side) ON. And then transmits buzzer output signal (ignition key warning chime) to unified
meter and A/C amp. with CAN communication.

Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combination
meter with communication line.

When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
When Mechanical Key Is Used
With the key inserted into the ignition switch, and the ignition switch LOCK or ACC position, when driver's door
is opened, the warning chime will sound.

BCM detects key inserted into the key switch, ignition switch in LOCK or ACC position, and front door
switch (driver side) ON. And then transmits buzzer output signal (ignition key warning chime) to unified
meter and A/C amp. with CAN communication.

Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combination
meter with communication line.

When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
When Intelligent Key Is Carried With The Driver
Refer to BL-91, "WARNING AND ALARM FUNCTION" .
SKIB6481E
SKIB7258E

DI-58
WARNING CHIME
Revision: 2006 July 2007 FX35/FX45
LIGHT WARNING CHIME
With ignition switch in LOCK or ACC position, driver's door is opened, and lighting switch in 1ST or 2ND posi-
tion, the light warning chime will sound.

BCM detects ignition switch in LOCK or ACC position, front door switch (driver side) ON, and lighting
switch in 1ST or 2ND position. And then transmits buzzer output signal (light warning chime) to unified
meter and A/C amp. with CAN communication.

Unified meter and A/C amp. transmits buzzer output signal (light warning chime) to combination meter
with communication line.

When combination meter receives buzzer output signal (light warning chime), it sounds the buzzer.
NOTE:
For further details of combination switch, refer to BCS-3, "
COMBINATION SWITCH READING FUNCTION" .
SEAT BELT WARNING CHIME
With ignition switch turned ON and driver's seat belt unfastened, seat belt warning chime will sound for
approximately 6 seconds.

Combination meter reads a ON/OFF signal from seat belt buckle switch (driver side), and transmits seat
belt buckle switch signal to unified meter and A/C amp. with communication line.

BCM receives seat belt buckle switch signal from unified meter and A/C amp. with CAN communication.

BCM detects ignition switch turned ON and seat belt buckle switch (driver side) ON. And then transmits
buzzer output signal (seat belt warning chime) to unified meter and A/C amp. with CAN communication.

Unified meter and A/C amp. transmits buzzer output signal (seat belt warning chime) to combination
meter with communication line.

When combination meter receives buzzer output signal (seat belt warning chime), it sounds the buzzer.
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
SKIB3858E
SKIB6482E

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

WARNING CHIME DI-67
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Revision: 2006 July 2007 FX35/FX45
5. Touch “START”.
6. During monitoring, touching “RECORD” can start recording the monitored item status.
Display Item List
ACTIVE TEST
Operation Procedure
1. Touch “BUZZER” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch the item to be tested, and check the operation.
4. During the operation check, touching “OFF” deactivates the operation.
Display Item List
SELF-DIAG RESULTS
Operation Procedure
1. Touch “BCM” on “SELECT TEST ITEM” screen.
2. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
3. Self-diagnosis results are displayed.
Display Item List
NOTE:
If “CAN communication [U1000]” is indicated, after printing the monitor item, go to “LAN system”. Refer to
LAN-49, "
CAN System Specification Chart" .
Trouble DiagnosisNKS003I1
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to DI-56, "
System Description" .
3. Perform the preliminary inspection. Refer to DI-68, "
PRELIMINARY INSPECTION" .
4. Referring to trouble diagnosis chart, make sure the cause of the malfunction and repair or replace applica- ble parts. Refer to DI-68, "
Symptom Chart" .
5. Does the warning chime operate normally? If so, GO TO 6. If not, GO TO 3.
6. INSPECTION END
Monitored item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
KEY ON SW Indicates [ON/OFF] condition of key switch.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch (driver side).
LIGHT SW 1ST Indicates [ON/OFF] condition of lighting switch.
BUCKLE SW Indicates [ON/OFF] condition of seat belt switch (driver side).
Test item Malfunction is detected when···
LIGHT WARN ALM This test is able to check light warning chime operation.
IGN KEY WARN ALM This test is able to check ignition key warning chime operation.
SEAT BELT WARN TEST This test is able to check seat belt warning chime operation.
Monitored Item CONSULT-ll display Description
CAN communication CAN communication [U1000] Malfunction is detected in CAN communication.

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

DI-72
WARNING CHIME
Revision: 2006 July 2007 FX35/FX45
Key Switch Signal Inspection (Without Intelligent Key)NKS003I6
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
1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check key switch. Refer to DI-76, "
KEY SWITCH" .
OK or NG
OK >> GO TO 3.
NG >> Replace key switch.
3. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
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. “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
37 – 1 : Continuity should exist.
37 – Ground : Continuity should not exist.
PKIB3833E

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