2007 INFINITI M35 wiring

AUTO LIGHT SYSTEM
LT-127
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
Preliminary CheckNKS003Q8
SETTING CHANGE FUNCTIONS

Sensitivity of auto light system can be adjusted using CONSULT-II. Refer to LT- 1 2 8 , "WORK SUPPORT" .
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSE AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-118, "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
38Approx.
0VApprox.
0VBattery
voltage
M242Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIA5204E

ACTIVE AFS
LT-139
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
HEADLAMP AUTO AIMING OPERATION
The height sensor detects a change in height of rear vehicle with ignition switch ON, and transmits signals to
the AFS control unit:
When ignition switch is turn to ON position, power is supplied

to height sensor terminal 1

through AFS control unit terminal 6.
When ignition switch is turned to ON position, height sensor input signal is supplied

to AFS control unit terminal 28

through height sensor terminal 2.
Ground is supplied

to height sensor terminal 3

through AFS control unit terminal 8.
Aiming motor driving signal (voltage signal that corresponds to the vehicle height) is transmitted depending on
the height sensor signal at the start of the engine

to front combination lamp LH terminal 12

through AFS control unit terminal 40,

to front combination lamp RH terminal 12

through AFS control unit terminal 19.
Output of aiming motor driving signal is maintained unless headlamp (HIGH/LOW) illuminate detected.
Auto aiming control operation starts when headlamps (HIGH/LOW) illuminate detected.
When headlamps (HIGH/LOW) illuminate, output of aiming motor driving signal is changed according to the
height sensor signal. After the change, it is changed according to height sensor signals with predetermined
timing based on driving condition while headlamps are ON.
Auto Aiming Operation
AFS control unit starts outputting aiming motor drive signal when the engine starts, and continues to output it
until the engine stops. Aiming motor drive signal changes output when the specified conditions described
below are met.
Headlamp aiming motors set the low beam projectors according to aiming motor drive signals received from
AFS control unit, both headlamp aiming motors cause the low beam projectors to move to the position com-
manded by the signal.
The aiming motor drive signal level retains when the following conditions are not met.

AFS control unit operation when the vehicle is stopped (low beam headlamps illuminated)
Headlamp aiming motor drive signal is changed when vehicle height is stabilized with a parked condition,
depending on the height sensor signal detected with height sensor signal by AFS control unit.

AFS control unit operation when the vehicle is running (low beam headlamps illuminated)
When vehicle is running, headlamp aiming motor drive signal is changed depending on the height sensor
signal which is detected when AFS control unit detects constant steady speed of vehicle.
When the vehicle is accelerating or decelerating, AFS control unit keeps headlamp aiming motor drive sig-
nal voltage level rather than changing it, so that the low beam projectors of both headlamps do not oper-
ate.
CAN COMMUNICATION SYSTEM DESCRIPTION
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 a 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 a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN COMMUNICATION UNIT
Refer to LAN-50, "CAN System Specification Chart" .

ACTIVE AFS
LT-143
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
Wiring Diagram — AFS —NKS003QI
TKWT5260E

ACTIVE AFS
LT-151
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
How to Proceed with Trouble DiagnosisNKS003QK
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 3 4 , "
System Description" .
3. Perform the preliminary check. Refer to LT- 1 5 1 , "
Preliminary Check" .
4. Perform self-diagnosis by CONSULT-II. Refer to LT- 1 5 3 , "
SELF-DIAG RESULTS" .
5. Check symptom and repair or replace the cause of malfunction.
6. Does the AFS operate normally? If YES: GO TO 7. If NO: GO TO 4.
7. INSPECTION END
Preliminary CheckNKS003QL
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-143, "Wiring Diagram — AFS —" .
OK or NG
OK >> GO TO 2.
NG >> If the fuse is brown be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK AFS CONTROL UNIT VOLTAGE
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between AFS control unit harness connector
and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse No.
AFS control unit Ignition switch ON or START 12
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 1 Ground Battery voltage
SKIB4776E
AFS control unit
connectorTerminal
GroundContinuity
F110 25 Yes
SKIB4775E

LT-196
FRONT FOG LAMP
Revision: 2007 April2007 M35/M45
FOG LAMP OPERATION
The fog lamp switch is built in combination switch. The lighting switch must be in 2ND position or AUTO posi-
tion (headlamp is ON) and fog lamp switch must be ON for fog lamp operation.
With the fog lamp switch in the ON position, the CPU located in IPDM E/R grounds coil side of the fog lamp
relay. Fog lamp relay then directs power

through IPDM E/R terminal 37

to front fog lamp RH terminal 1,

through IPDM E/R terminal 36

to front fog lamp LH terminal 1.
Ground is supplied

to front fog lamp RH terminal 2

through grounds E22 and E43,

to front fog lamp LH terminal 2

through grounds E22 and E43.
With power and grounds supplied, the front fog lamps illuminate.
The unified meter and A/C amp. that received the front fog lamp request signal by BCM across the CAN com-
munication makes a front fog lamp indicator lamp turn on in combination meter.
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 (ON), 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.
CAN Communication System DescriptionNKS003R4
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 a 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 a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003R5
Refer to LAN-50, "CAN System Specification Chart" .

LT-198
FRONT FOG LAMP
Revision: 2007 April2007 M35/M45
Wiring Diagram — F/FOG —NKS003R7
TKWT3387E

LT-204
FRONT FOG LAMP
Revision: 2007 April2007 M35/M45
Refer to LT-198, "Wiring Diagram — F/FOG —" .
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 >> Check harness for open or short between BCM and
fuse.
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)NKS003RC
Refer to LT- 5 7 , "CONSULT-II Functions (BCM)" in HEADLAMP (FOR USA) -XENON TYPE-.
Refer to LT- 2 3 , "
CONSULT-II Functions (BCM)" in HEADLAMP (FOR USA) -CONVENTIONAL TYPE-.
Refer to LT- 9 4 , "
CONSULT-II Functions (BCM)" in HEADLAMP (FOR CANADA).
CONSULT-II Functions (IPDM E/R)NKS003RD
Refer to LT- 5 9 , "CONSULT-II Functions (IPDM E/R)" in HEADLAMP (FOR USA) -XENON TYPE-.
Refer to LT- 2 5 , "
CONSULT-II Functions (IPDM E/R)" in HEADLAMP (FOR USA) -CONVENTIONAL TYPE-.
Refer to LT- 9 6 , "
CONSULT-II Functions (IPDM E/R)" in HEADLAMP (FOR CANADA).
Terminal Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTerminal
M111
GroundApprox.
0VBattery
voltageBattery
voltage
38Approx.
0VApprox.
0VBattery
voltage
M242Battery
voltageBattery
voltageBattery
voltage
55Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
BCM connector Terminal
GroundContinuity
M2 52 Yes
SKIB5125E

LT-214
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45

to BCM terminal 52

to combination meter terminals 9, 10 and 11

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

through grounds M16 and M70.
BCM then supplies power

through BCM terminal 45

to front combination lamp LH (turn signal) terminal 10

to side turn signal lamp LH terminal 1

to rear combination lamp LH (turn signal) terminal 3,

through BCM terminal 46

to front combination lamp RH (turn signal) terminal 10

to side turn signal lamp RH terminal 1

to rear combination lamp RH (turn signal) terminal 3.
Ground is supplied

to front combination lamp LH (turn signal) terminal 9

to front combination lamp RH (turn signal) terminal 9

to side turn signal lamp LH terminal 2

to side turn signal lamp RH terminal 2

through grounds E22 and E43,

to rear combination lamp LH (turn signal) terminal 4

to rear combination lamp RH (turn signal) terminal 4

through grounds B5, B40 and B131.
The BCM also supplies input to unified meter and A/C amp. terminals 56 and 72 across the CAN communica-
tion lines.
The unified meter and A/C amp. which received the turn indicator signal makes the left and right turn signal
indicator turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the hazard warning lamps.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
CAN Communication System DescriptionNKS003RM
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 a 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 a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNKS003RN
Refer to LAN-50, "CAN System Specification Chart" .