2006 INFINITI M35 ignition

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
LT-113
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Revision: 2006 January2006 M35/M45
3. CHECK HEADLAMP GROUND
1. Turn ignition switch OFF.
2. Check continuity between front combination lamp RH or LH har-
ness connector and ground.
OK or NG
OK >> Check connecting condition headlamp harness connec-
tor.
NG >> Repair harness or connector.
4. CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT COMBINATION LAMP
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector (A) and
front combination lamp RH or LH harness connector (B).
4. Check continuity between IPDM E/R harness connector (A) 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.
Front combination lamp
connectorTe r m i n a l
GroundContinuity
RH E47 4
Ye s
LH E54 4
SKIB4759E
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH
E720 E47 8
Ye s
LH 30 E54 8
A
GroundContinuity
Connector Terminal
RH
E720
No
LH 30
SKIB4760E

LT-114
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
Revision: 2006 January2006 M35/M45
Headlamps Do Not Turn OFFNKS003PQ
1. CHECK HEADLAMP TURN OFF
Make sure that lighting switch is OFF. And make sure is headlamp turns off when ignition switch is turned OFF.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK COMBINATION SWITCH INPUT SIGNAL
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “HEAD LAMP SW 1” and “HEAD LAMP SW 2” turns ON-
OFF linked with operation of lighting switch.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
NG >> Check lighting switch. Refer to LT- 2 4 0 , "
Combination
Switch Inspection" .
3. CHECK CAN COMMUNICATIONS BETWEEN BCM AND IPDM E/R
Select “BCM” by CONSULT-II, and perform self-diagnosis for “BCM”.
Display of self-diagnosis results
NO DTC>> Replace IPDM E/R. Refer to PG-31, "Removal and
Installation of IPDM E/R" .
CAN COMM CIRCUIT>> Refer to BCS-15, "
CAN Communication
Inspection Using CONSULT-II (Self-Diagnosis)" . When lighting switch is OFF
position: HEAD LAMP SW 1 OFF
: HEAD LAMP SW 2 OFF
PKIA7011E
SKIA1039E

AUTO LIGHT SYSTEM
LT-117
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Revision: 2006 January2006 M35/M45
to optical sensor terminal 1.
Optical sensor, ground is supplied
to optical sensor terminal 3
through BCM terminal 18.
When ignition switch is turn to ON position, and
When outside brightness is darker than prescribed level, input is supplied
from optical sensor terminal 2
to BCM terminal 14.
The headlamps will then illuminate. For a description of headlamp operation, Refer to LT- 11 6 , "
System
Description" .
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (or if auto light system is activated), and
the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
DELAY TIMER FUNCTION
Delay timer function carries out a function that BCM activates the timer and controls lights out of headlamps by
door switch signal and lightning switch signal when turning the Ignition switch OFF while it is ON and head-
lamps are ON by the auto light function.
Timer types are a 5 minutes timer and a 45 seconds timer
When opening any door (door switch is ON), the 5 minutes timer starts and then headlamps go out five
minutes later
When all the doors are closed (from door switch ON to OFF), the 45 second timer starts and then head-
lamps go out 45 seconds later. If any door is opened (door switch ON) while the 45 seconds timer is in
operation, the 5 minutes timer starts again
The timer stops when turning on the ignition switch or turning off the auto light switch under the above
conditions.
Delay timer control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionNKS003Q0
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing the high rate of information transmission with less wir-
ing. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003Q1
Refer to LAN-34, "CAN Communication Unit" .
Major Components and FunctionsNKS003Q2
Components Functions
BCM
Turns on/off circuits of tail light and headlamp according to signals from optical sensor, lighting switch
(AUTO), driver door switch, passenger door switch, rear door switch, and ignition switch (ON, OFF).
Optical sensor
Converts outside brightness (lux) to voltage, and sends it to BCM. (Detects brightness of 50 to 1,300 lux)

AUTO LIGHT SYSTEM
LT-123
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Revision: 2006 January2006 M35/M45
Terminals and Reference Values for BCMNKS003Q5
CAUTION:
Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch 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-129, "
DATA MONITOR" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
4R/GCombination
switch input 3ONLighting, turn, wiper
OFF
(Wiper dial position 4)Lighting switch AUTO
Approx. 1.0V
OFF Approx. 0V
11 VIgnition switch
(ACC)ACC — Battery voltage
12 PFront door switch
passenger side
signalOFFFront door switch pas-
senger sideON (open) Approx. 0V
OFF (closed)
Approx. 8.0 - 8.5V
13 O/LRear door switch
RH signalOFF Rear door switch RHON (open) Approx. 0V
OFF (closed)
Approx. 8.5 - 9.0V
14 W/BOptical sensor
signalONWhen optical sensor is illuminated.
3.1V or more
NOTE
When optical sensor is not illuminated. 0.6V or less
17 YOptical sensor
power supplyON — Approx. 5V
18 BOptical sensor
groundON — Approx. 0V
PKIB4957J
SKIB3419J
SKIB4865E

LT-124
AUTO LIGHT SYSTEM
Revision: 2006 January2006 M35/M45
NOTE:
Optical sensor must be securely subjected to work lamp light. If the optical sensor is insufficiently illuminated, the measured value may
not satisfy standard.33 GRCombination
switch output 4ONLighting, turn, wiper
OFF
(Wiper dial position 4)Lighting switch AUTO
Approx. 1.2V
OFF
Approx. 7.0 - 7.5V
38 WIgnition switch
(ON) ON — Battery voltage
39 L CAN
H — — —
40 P CAN
L — — —
42 PBattery power
supplyOFF — Battery voltage
52 B Ground ON — Approx. 0V
55 WBattery power
supplyOFF — Battery voltage
62 VFront door switch
driver side signalOFFFront door switch
driver sideON (open) Approx. 0V
OFF (closed)
Approx. 7.5 - 8.0V
63 R/GRear door switch
LH signalOFF Rear door switch LHON (open) Approx. 0V
OFF (closed)
Approx. 7.5 - 8.0V Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4958J
PKIB4960J
PKIB4960J
PKIB4960J

AUTO LIGHT SYSTEM
LT-125
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Revision: 2006 January2006 M35/M45
Terminals and Reference Values for IPDM E/RNKS003Q6
How to Perform Trouble DiagnosesNKS003Q7
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 11 6 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 1 2 6 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction. Refer to LT-130, "
Symptom Chart" .
5. Does the auto light system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END.
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
20 R Headlamp low (RH) ONLighting switch 2ND
positionOFF Approx. 0V
ON Battery voltage
21 R/LParking, license plate,
and tail lampONLighting switch 1ST
positionOFF Approx. 0V
ON Battery voltage
27 BR Headlamp high (RH) ONLighting switch HIGH
or PASSING positionOFF Approx. 0V
ON Battery voltage
28 R/Y Headlamp high (LH) ONLighting switch HIGH
or PASSING positionOFF Approx. 0V
ON Battery voltage
30 R/B Headlamp low (LH) ONLighting switch 2ND
positionOFF Approx. 0V
ON Battery voltage
38 B Ground ON — Approx. 0V
49 L CAN
H — — —
50 P CAN
L — — —
51 B Ground ON — Approx. 0V

LT-126
AUTO LIGHT SYSTEM
Revision: 2006 January2006 M35/M45
Preliminary CheckNKS003Q8
SETTING CHANGE FUNCTIONS
Sensitivity of auto light system can be adjusted using CONSULT-II. Refer to LT-128, "WORK SUPPORT" .
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSE AND FUSIBLE LINK
Check for blown fuses.
Refer to LT-119, "Wiring Diagram — AUTO/L —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCMBatteryF
21
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6
IPDM E/R Battery71
72
74
76
78
86
Terminal Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTerminal
M111
GroundApprox. 0VBattery
voltageBattery
voltage
38 Approx. 0V Approx. 0VBattery
voltage
M242Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIA5204E

AUTO LIGHT SYSTEM
LT-127
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Revision: 2006 January2006 M35/M45
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check harness ground circuit.
CONSULT-II Functions (BCM)NKS003Q9
CONSULT-II can display each diagnostic item using the diagnostic test mode 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.
2. Touch “START (NISSAN BASED VHCL)”.
BCM connector Terminal
GroundContinuity
M2 52 Yes
SKIB5125E
BCM diagnosis part Diagnosis mode Description
HEADLAMPWORK SUPPORT Changes the setting for each function.
DATA MONITOR Displays BCM input data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
BCMSELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
SKIB3794E
BCIA0029E