ignition INFINITI M35 2007 Factory Service Manual

WARNING LAMPS
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Revision: 2007 April2007 M35/M45
6. CHECK BCM INPUT SIGNAL
1. Select “SIGNAL BUFFER” of “BCM” on CONSULT-II.
2. Operate ignition switch with “OIL PRESS SW” of “DATA MONI-
TOR” and check operate status.
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installa-
tion of BCM" .
NG >> Replace IPDM E/R. Refer to PG-31, "
Removal and Installation of IPDM E/R" .
Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)NKS003UT
NOTE:
For oil pressure inspection, refer to LU-8, "
OIL PRESSURE CHECK" (VQ35DE) or LU-27, "OIL PRESSURE
CHECK" (VK45DE).
1. CHECK OPERATION OF OIL PRESSURE WARNING LAMP
Activate IPDM E/R auto active test. Refer to PG-23, "
Auto Active Test" .
Does oil pressure warning lamp is blinking?
YES >> GO TO 2.
NO >> GO TO 5.
2. CHECK IPDM E/R OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between oil pressure switch harness connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer to DI-54, "
OIL PRESSURE SWITCH" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and Installation of IPDM E/R" .
NG >> Replace oil pressure switch.“OIL PRESS SW”
When ignition switch is in ON
position (Engine stopped): ON
When engine running : OFF
SKIA8709E
Terminals
Voltage (Approx.) (+)
(–)
Oil pressure switch
connectorTerminal
F21 1 Ground 12 V
PKIB7658E

DI-54
WARNING LAMPS
Revision: 2007 April2007 M35/M45
4. CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and
ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
5. CHECK IPDM E/R (CONSULT-II)
Perform self-diagnosis of IPDM E/R. Refer to PG-20, "
CONSULT-II Function (IPDM E/R)" .
Self
-diagnostic results content
No malfunction detected>> Replace combination meter.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
Electrical Component InspectionNKS003UU
OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
IPDM E/R connector Terminal
GroundContinuity
E9 52 No
PKIB7659E
Condition
Oil pressure [kPa (kg/cm2 , psi)]Continuity
Engine stopped Less than 29 (0.3, 4) Yes
Engine running More than 29 (0.3, 4) No
ELF0044D

WARNING CHIME
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Revision: 2007 April2007 M35/M45
WARNING CHIMEPFP:24814
System DescriptionNKS003UY

The buzzer (1) for warning chime system is installed in the com-
bination meter.

The buzzer sounds when the combination meter receives
buzzer output signal from each unit through unified meter and A/
C amp.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

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

to BCM terminal 55,

through 10A fuse [No. 21, located in the fuse block (J/B)]

to BCM terminal 42, and

to combination meter terminal 23,

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

to unified meter and A/C amp. terminal 54.
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 53,

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

to combination meter terminal 12.
Ground is supplied

to BCM terminals 52,

to unified meter and A/C amp. terminals 55 and 71, and

to combination meter terminals 9, 10 and 11,

through grounds M16 and M70.
SKIB2633J

DI-60
WARNING CHIME
Revision: 2007 April2007 M35/M45
IGNITION KEY WARNING CHIME (WITH INTELLIGENT KEY)
Refer to BL-54, "WARNING FUNCTION" in intelligent key system.
LIGHT WARNING CHIME
With ignition switch in OFF or ACC position, driver door open, and lighting switch in 1ST or 2ND position, the
light warning chime will sound.

BCM detects ignition switch in OFF 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 line.

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 seat belt unfastened, seat belt warning chime will sound for approxi-
mately 6 seconds.

BCM receives seat belt buckle switch signal [seat belt buckle switch (driver side) ON] from unified meter
and A/C amp. with CAN communication line.

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
line.

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.
SKIB3858E
SKIB3859E

DI-66
WARNING CHIME
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Combination MeterNKS003V2
Terminals and Reference Value for Unified Meter and A/C Amp.NKS003V3
Terminal
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
9
B Ground ON — 0 V 10
11
12 BR Ignition switch ON or START ON — Battery voltage
15 RRX communication line (From
unified meter and A/C amp.)ON —
16 GTX communication line (To
unified meter and A/C amp.)ON —
23 W/G Battery power supply OFF — Battery voltage
SKIA3362E
SKIA3361E
Te r m i n a l
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
7RTX communication line
(To combination meter)ON —
9W/LSeat belt buckle switch
(drive side)ONSeat belt is unfastened
(Seat belt buckle switch ON)0 V
Seat belt is fastened
(Seat belt buckle switch OFF)12 V
27 GRX communication line
(From combination meter)ON —
53 W/G Ignition switch ON or START ON — Battery voltage
54 W/G Battery power supply OFF — Battery voltage
55 B Ground ON — 0 V
56 L CAN–H — — —
SKIA3362E
SKIA3361E

WARNING CHIME
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value for BCMNKS003V4
71 B Ground (Power) ON — 0 V
72 P CAN–L — — — Terminal
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
Terminal
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
2 L/R Combination switch input 5 ONLighting switch is 1ST position
(Wiper dial position 4)
Lighting switch is OFF position 0 V
33 GR Combination switch output 4 ONLighting switch is 1ST position
(Wiper dial position 4)
Lighting switch is OFF position
37 LG Key switch signal OFFIntelligent Key is inserted into
key slot12 V
Intelligent Key is removed from
key slot0 V
38 W Ignition switch ON or START ON — Battery voltage
39 L CAN–H — — —
40 P CAN–L — — —
42 P Battery power supply OFF — Battery voltage
52 B Ground ON — 0 V
55 W Battery power supply OFF — Battery voltage
62 V Front door switch (driver side) OFFWhen driver side door is
opened (Door switch ON)0 V
When driver side door is closed
(Door switch OFF)12 V
PKIB4957J
PKIB4958J
PKIB4960J

DI-68
WARNING CHIME
Revision: 2007 April2007 M35/M45
CONSULT-II Function (BCM)NKS003V5
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
DATA MONITOR
Operation Procedure
1. Touch “BCM” on “SELECT SYSTEM” screen.
2. Touch “BUZZER” on “SELECT TEST ITEM” screen.
3. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
4. Touch “ALL SIGNALS” or “SELECTION FROM MENU” on “DATA MONITOR” screen.
5. If “SELECTION FROM MENU” is selected, touch the desired monitor item. If “ALL SIGNALS” is selected,
all items required to control are monitored.
6. Touch “START”.
7. During monitoring, touching “RECORD” can start recording the monitored item status.
Display Item List
×: Applicable System Test item Diagnosis mode DescriptionReference
page
BCMBUZZERDATA MONITOR Displays BCM input data in real time.DI-68
ACTIVE TESTOperation of electrical loads can be checked by sending driving signal
to them.DI-69
BCM SELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.DI-69
PKIB4914E
ALL SIGNALS Monitors main items.
SELECTION FROM MENU Selects and monitors items.
Display item [Unit] ALL SIGNALSSELECTION
FROM MENUDescription
IGN ON SW [ON/OFF] X X Displays [ON/OFF] condition of ignition switch.
KEY ON SW [ON/OFF] X X Displays [ON/OFF] condition of key switch.
DOOR SW-DR [ON/OFF] X X Displays [ON/OFF] condition of front door switch (driver side).
TAIL LAMP SW [ON/OFF] X X Displays [ON/OFF] condition of lighting switch.
FR FOG SW [ON/OFF] X X Displays [ON/OFF] condition of front fog lamp switch.
BUCKLE SW [ON/OFF] X X Displays [ON/OFF] condition of seat belt buckle switch (driver side).

DI-72
WARNING CHIME
Revision: 2007 April2007 M35/M45
Front Door Switch (Driver Side) Signal InspectionNKS003VA
1. CHECK BCM INPUT SIGNAL
With CONSULT-ll
1. Select “BCM” on CONSULT-II.
2. With “DATA MONITOR” of “BUZZER”, confirm “DOOR SW-DR”
when the driver side door is opened/closed.
Without CONSULT-ll
Check voltage between BCM harness connector and ground.
OK or NG
OK >> Front door switch (driver side) signal is OK. Return to
DI-70, "
SYMPTOM CHART" .
NG >> GO TO 2.
2. CHECK FRONT DOOR SWITCH (DRIVER SIDE) CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and front door switch (driver side)
connector.
3. Check continuity between BCM harness connector (A) and front
door switch (driver side) harness connector (B).
4. Check continuity between BCM harness connector (A) and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK FRONT DOOR SWITCH (DRIVER SIDE)
Check front door switch (driver side). Refer to DI-74, "
FRONT DOOR SWITCH (DRIVER SIDE)" .
OK or NG
OK >> Replace BCM. Refer to BCS-15, "Removal and Installation of BCM" .
NG >> Replace front door switch (driver side).“DOOR SW-DR”
When driver side door is opened : ON
When driver side door is closed : OFF
SEL502W
Te r m i n a l s
Condition
Voltage
(Approx.) (+)
(–)
BCM
connectorTerminal Driver side door:
M3 62 GroundOpen 0 V
Close 12 V
PKIB7662E
AB
Continuity
Connector Terminal Connector Terminal
M3 62 B11 2 Yes
A
GroundContinuity
Connector Terminal
M3 62 No
PKIB7663E

WARNING CHIME
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Seat Belt Buckle Switch Signal InspectionNKS003VB
1. CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-II.
2. With “DATA MONITOR” of “BUZZER”, confirm “BUCKLE SW”
when the seat belt is fastened/unfastened.
OK or NG
OK >> Seat belt buckle switch signal is OK. Return to DI-70,
"SYMPTOM CHART" .
NG >> GO TO 2.
2. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between unified meter and A/C amp. harness
connector and ground.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> GO TO 3.
3. CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector and seat belt
buckle switch (driver side) connector.
3. Check continuity between unified meter and A/C amp. harness
connector (A) and seat belt buckle switch (driver side) harness
connector (B).
4. Check harness continuity between unified meter and A/C amp.
harness connector (A) and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.“BUCKLE SW”
When seat belt is fastened : OFF
When seat belt is unfastened : ON
SKIA8674E
Terminals
Condition
Voltage
(Approx.) (+)
(–)
Unified meter and
A/C amp. connectorTerminalSeat belt
(driver side):
M64 9 GroundFasten 12 V
Unfasten 0 V
PKIB7664E
AB
Continuity
Connector Terminal Connector Terminal
M64 9 B203 1 Yes
A
GroundContinuity
Connector Terminal
M64 9 No
PKIB7666E

DI-76
LANE DEPARTURE WARNING SYSTEM
Revision: 2007 April2007 M35/M45
In the automatic mode
–LDW system automatically turns on, when the ignition switch is turned to the ON position.
–LDW system ON indicator located on the LDW switch illuminates, indicating that the system is on.
–To cancel LDW system, push the LDW switch to turn off LDW system ON indicator.
–To turn on the system, push LDW switch again.
In the manual mode
–LDW system is still off when the ignition switch is turned to the ON position.
–The LDW switch must be pushed to turn on the system.
To the change modes
–Push and hold LDW switch for more than 4 seconds, when LDW system ON indicator is off.
–Then LDW chime sounds and blinking of LDW system ON indicator informs that the mode change is com-
pleted.

Temporary disabled status at high temperature
–If the vehicle is parked in direct sunlight under high temperature conditions [approximately over 104 °F (40
°C)] and then started, the LDW system may sound a chime and cancel automatically. Then LDW system
ON indicator will blink.
–When the interior temperature is reduced, the system will resume to operate automatically and the LDW
system ON indicator illuminates.
Warning Function
SKIB1783E