2007 INFINITI M35 Warning chime

WARNING CHIME
DI-71
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2007 April2007 M35/M45
2. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. With “DATA MONITOR”, confirm “BUZZER” under the condition
of buzzer input. (Seat belt warning chime, turn signal lamp oper-
ate, etc.)
OK or NG
OK >> GO TO 3.
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" .
3. REPLACE COMBINATION METER
Replace combination meter.
Does meter buzzer beep?
YES >> INSPECTION END
NO >> Replace unified meter and A/C map.
Lighting Switch Signal InspectionNKS003V9
1. CHECK BCM INPUT SIGNAL
1. Select “BCM” on CONSULT-II.
2. With “DATA MONITOR” of “BUZZER”, confirm “TAIL LAMP SW”
when the lighting switch is operated.
OK or NG
OK >> Lighting switch signal is OK. Return to DI-70, "SYMP-
TOM CHART" .
NG >> Check the lighting switch. Refer to LT- 2 3 0 , "
Switch Cir-
cuit Inspection" . “BUZZER”
Under the condition of buzzer input : ON
Except above : OFF
PKIA2063E
“TAIL LAMP SW”
Lighting switch ON (1st position) : ON
Lighting switch OFF : OFF
PKIC0697E

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
DI-73
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2007 April2007 M35/M45
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-74
WARNING CHIME
Revision: 2007 April2007 M35/M45
4. CHECK SEAT BELT BUCKLE SWITCH (DRIVER SIDE)
Check seat belt buckle switch (driver side). Refer to DI-74, "
SEAT BELT BUCKLE SWITCH (DRIVER SIDE)" .
OK or NG
OK >> Check seat belt buckle switch (driver side) ground circuit.
NG >> Replace seat belt buckle switch (driver side).
Electrical Component InspectionNKS003VC
FRONT DOOR SWITCH (DRIVER SIDE)
Check continuity between terminal 2 and door switch case ground.
SEAT BELT BUCKLE SWITCH (DRIVER SIDE)
Check continuity between terminals 1 and 2.
Terminal Condition Continuity
2Door switch
case groundWhen door switch is released. Yes
When door switch is pushed. No
PKIC0245E
Terminal Condition Continuity
12When seat belt is unfastened. Yes
When seat belt is fastened. No
PKIB7665E

LANE DEPARTURE WARNING SYSTEM
DI-75
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2007 April2007 M35/M45
LANE DEPARTURE WARNING SYSTEM PFP:28442
Precautions for Lane Departure Warning (LDW) systemNKS003VF
WARNING:
Lane Departure Warning (LDW) is only a warning device to inform the driver of an unintended lane
departure. It will not steer the vehicle or prevent loss of control. It is the driver's responsibility to stay
alert, drive safely, keep the vehicle in the traveling lane, and be in control of the vehicle at all times.

LDW system does not operate under the following conditions:
–At speeds below approx. 72 km/h (45 MPH).
–If it cannot detect lane markers.

LDW system may not function properly under the following conditions:
–On roads where a water puddle, dirt or snow is covering the lane markers.
–On roads where the lane markers are faded or are not painted clearly.
–On roads where the lane markers are painted yellow.

LDW system may not monitor the lane markers in certain road, weather or driving conditions.
–On roads where there are sharp curves.
–Where the traveling lane merges or separates.
–On roads where the discontinued lane markers are present, such as near tollgates, etc.
–On roads where there are not general lane markers.
–On roads where the lane width is too narrow.
–During bad weather (rain, fog, snow, etc.).
–When strong light (for example, at sunrise or sunset) is directly shining on the front of the vehicle.
–When entering or exiting a tunnel where sudden changes in brightness occur.
–When traveling close to the vehicle in front of you, which causes obstruction of the camera unit
range.
–When the vehicle's traveling direction does not align with the lane marker.
–When rain, snow or dirt adhere to the windshield in front of the camera unit.

Excessive noise interferes with warning system chime sound and the chime may not be heard.
CAUTION:
To keep the LDW system operating properly, be sure to observe the following:

Always keep the windshield clean. The sensing capability of the camera unit depends on the con-
dition of the windshield. See “Appearance and care” for cleaning instruction.

Never strike or damage the areas around the camera unit.

Never touch the camera lens.

Never attach a sticker (including transparent material) or install an accessory near the camera
unit.

Never place reflective materials, such as a white paper or mirrors on the instrument panel. Reflec-
tion of the sunlight may adversely affect the camera unit's lane marker detection capability.
System DescriptionNKS003VG
LDW SYSTEM OPERATION

The Lane Departure Warning (LDW) system warns the driver when the vehicle is traveling close to either
the left or the right of the traveling lane.

The system monitors lane markers of the traveling lane using the LDW camera unit. When the LDW cam-
era unit detects that the vehicle is traveling close to either the left or the right of the traveling lane, the
LDW indicator lamp flashes and a chime sounds to alert the driver.
NOTE:
When activating turn signal, LDW system does not give a warning to the lane marker on the turn signal
side.

The LDW system can be turned on or off by pushing the LDW switch. When the system is on, the LDW
system ON indicator illuminates.

The LDW system has an automatic mode and manual mode.

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

LANE DEPARTURE WARNING SYSTEM
DI-77
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2007 April2007 M35/M45
System Diagram
Components Description
NOTE:
*: This indicates in a few seconds for the system check during ignition switch ON.
POWER SUPPLY AND GROUND CIRCUIT
With the ignition switch in the ON or START position, power is supplied

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

to LDW camera unit terminal 1.
Ground is supplied

to LDW camera unit terminals 6 and 12

through grounds M16 and M70.
Action TestNKS003VH
LDW SYSTEM RUNNING TEST
WARNING:

Be careful when performing road test.

Understand “Precautions” and “System Description” well before the road test. Refer to DI-75,
"Precautions for Lane Departure Warning (LDW) system" and DI-75, "System Description" .
Function Check
Check the LDW system operation according to the condition that the warning function works. Refer to DI-75,
"LDW SYSTEM OPERATION" .
PKIC0698E
Component Description
LDW camera unitDetects the lane marker by the built-in camera, gives judgement for the warning according to the
result of detection and signals from each unit, and transmits the operation signal to LDW chime and
LDW indicator lamp.
LDW switch

Selects ON/OFF of the system.

Indicates ON/OFF of the signal with LDW system ON indicator.
LDW chime Gives a warning chime according to the direction from LDW camera unit.
LDW indicator lampInstalled in combination meter, and indicates the system condition.

Blinks when LDW system is functioning to alert the driver.

Stays on when LDW system is malfunctioning.*
BCM Transmits turn indicator signal to LDW camera unit with CAN communication signal.
ABS actuator and electric unit
(control unit)Transmits vehicle speed signal to LDW camera unit with CAN communication signal.
TCM Transmits vehicle speed signal to LDW camera unit with CAN communication signal. (For detecting
incorrect speed.)

DI-88
LANE DEPARTURE WARNING SYSTEM
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for LDW Camera UnitNKS003VL
NOTE:
*: Perform “ACTIVE TEST” with CONSULT-II. Refer to DI-91, "
ACTIVE TEST" .
CONSULT-II Function (LDW)NKS003VM
DESCRIPTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, and then turn
ignition switch ON.
Te r m i n a l
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
1 B/R Ignition switch ON or START ON — Battery voltage
3 R/W LDW chime ON LDW chimeActivated
*0 V
Not activated 12 V
4 V System ON indicator ON LDW systemON 0 V
OFF 12 V
5 P CAN–L — — —
6 B Ground ON — 0 V
8 G/W LDW indicator lamp ON LDW indicator lamp Illuminated
*0 V
Turned OFF 12 V
9 GR LDW switch ON LDW switchPushed 0 V
Released 5 V
10 L CAN–H — — —
12 B Ground ON — 0 V
System Diagnosis mode DescriptionReference
page
LDWWORK SUPPORT Displays causes of automatic cancellation of the LDW system.DI-89
SELF-DIAG RESULTS Displays malfunctioning system memorized in LDW camera unit.DI-89
DATA MONITOR Displays real-time input/output data of LDW camera unit.DI-90
CAN DIAG SUPPORT MNTR Displays the results of transmit/receive diagnosis of CAN communication.LAN-44
ACTIVE TEST Enables operation check of electrical loads by sending driving signal to them.DI-91
ECU PART NUMBER Displays part number of LDW camera unit. —
SKIB3794E