2007 INFINITI M35 sensor

TROUBLE DIAGNOSIS
LAN-101
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2007 April2007 M35/M45
ICC Sensor Integrated Unit Branch Line CircuitNKS004H6
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the ICC sensor integrated unit for damage, bend and loose con-
nection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of ICC sensor integrated unit.
2. Check the resistance between the ICC sensor integrated unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the ICC sensor integrated unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the ICC sensor integrated unit. Refer to ACS-22, "
Sche-
matic" .
OK or NG
OK >>
Present error: Replace the ICC sensor integrated unit. Refer to ACS-70, "ICC Sensor Inte-
grated Unit" .

Past error: Error was detected in the ICC sensor integrated unit branch line.
NG >> Repair the power supply and the ground circuit.
IPDM E/R Branch Line CircuitNKS004GN
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the IPDM E/R for damage, bend and loose connection (unit side
and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
ICC sensor integrated unit harness connector
Resistance (Ω)
Connector No. Terminal No.
E61 3 6 Approx. 54 – 66

LT-2Revision: 2007 April2007 M35/M45 ACTIVE TEST ..................................................... 58
CONSULT-II Functions (IPDM E/R) ........................ 59
CONSULT-II BASIC OPERATION ....................... 59
DATA MONITOR .................................................. 59
ACTIVE TEST ..................................................... 59
Headlamp High Beam Does Not Illuminate (Both
Sides) ..................................................................... 60
Headlamp High Beam Does Not Illuminate (One
Side) ....................................................................... 63
High Beam Indicator Lamp Does Not Illuminate ..... 64
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 65
Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 68
Headlamps Do Not Turn OFF ................................. 70
General Information for Xenon Headlamp Trouble
Diagnosis ................................................................ 71
Caution: .................................................................. 71
Xenon Headlamp Trouble Diagnosis ...................... 71
Aiming Adjustment .................................................. 72
PREPARATION BEFORE ADJUSTING .............. 72
LOW BEAM AND HIGH BEAM ........................... 72
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 73
Bulb Replacement .................................................. 73
HEADLAMP (INNER) HIGH BEAM ..................... 73
HEADLAMP (OUTER) LOW BEAM .................... 74
PARKING LAMP .................................................. 74
FRONT TURN SIGNAL LAMP ............................ 74
FRONT SIDE MARKER LAMP ............................ 74
Removal and Installation ........................................ 75
REMOVAL ........................................................... 75
INSTALLATION .................................................... 75
Disassembly and Assembly .................................... 76
DISASSEMBLY ................................................... 76
ASSEMBLY ......................................................... 77
HEADLAMP (FOR CANADA) - DAYTIME LIGHT
SYSTEM - .................................................................. 78
Component Parts and Harness Connector Location ... 78
System Description ................................................. 78
OUTLINE ............................................................. 79
HEADLAMP OPERATION ................................... 80
DAYTIME LIGHT OPERATION ........................... 81
COMBINATION SWITCH READING FUNCTION ... 81
AUTO LIGHT OPERATION ................................. 81
CAN Communication System Description .............. 81
CAN Communication Unit ....................................... 81
Schematic ............................................................... 82
Wiring Diagram — DTRL — ................................... 83
Terminals and Reference Values for BCM .............. 89
Terminals and Reference Values for IPDM E/R ...... 91
How to Perform Trouble Diagnosis ......................... 91
Preliminary Check .................................................. 92
INSPECTION FOR POWER SUPPLY AND
GROUND CIRCUIT ............................................. 92
INSPECTION FOR PARKING BRAKE SWITCH
CIRCUIT .............................................................. 93
CONSULT-II Functions (BCM) ................................ 94
CONSULT-II BASIC OPERATION ....................... 94DATA MONITOR .................................................. 94
ACTIVE TEST ...................................................... 95
CONSULT-II Functions (IPDM E/R) ........................ 96
CONSULT-II BASIC OPERATION ....................... 96
DATA MONITOR .................................................. 96
ACTIVE TEST ...................................................... 96
Daytime Light Control Does Not Operate Properly
(Normal Headlamps Operate Properly) .................. 97
Headlamp High Beam Does Not Illuminate (Both
Sides) ....................................................................100
RH High Beam Does Not Illuminate But LH High
Beam Illuminates ..................................................104
LH High Beam Does Not Illuminate But RH High
Beam Illuminates ..................................................106
Headlamp Low Beam Does Not Illuminate (Both
Sides) ....................................................................108
Headlamp Low Beam Does Not Illuminate (One
Side) ...................................................................... 111
Headlamps Do Not Turn OFF ...............................113
General Information for Xenon Headlamp Trouble
Diagnosis ..............................................................114
CAUTION: .............................................................114
Xenon Headlamp Trouble Diagnosis ....................114
Aiming Adjustment ................................................114
Bulb Replacement .................................................114
Removal and Installation .......................................114
Disassembly and Assembly ..................................114
AUTO LIGHT SYSTEM ...........................................115
Component Parts and Harness Connector Location .115
System Description ...............................................115
OUTLINE ...........................................................115
COMBINATION SWITCH READING FUNCTION .116
EXTERIOR LAMP BATTERY SAVER CONTROL .116
DELAY TIMER FUNCTION ................................116
CAN Communication System Description ............116
CAN Communication Unit .....................................116
Major Components and Functions ........................116
Schematic .............................................................117
Wiring Diagram — AUTO/L — ..............................118
Terminals and Reference Values for BCM ............124
Terminals and Reference Values for IPDM E/R ....126
How to Perform Trouble Diagnoses ......................126
Preliminary Check .................................................127
SETTING CHANGE FUNCTIONS .....................127
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ...................................................................127
CONSULT-II Functions (BCM) ..............................128
CONSULT-II BASIC OPERATION .....................128
WORK SUPPORT .............................................128
DATA MONITOR ................................................129
ACTIVE TEST ....................................................130
Symptom Chart .....................................................130
Lighting Switch Inspection ....................................131
Optical Sensor System Inspection ........................131
Removal and Installation for Optical Sensor .........133
REMOVAL ..........................................................133
INSTALLATION ..................................................133
ACTIVE AFS ............................................................134
Component Parts and Harness Connector Location .134

LT-3
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45 System Description .............................................. 134
AFS (ADAPTIVE FRONT-LIGHTING SYSTEM) . 135
HEADLAMP AUTO AIMING .............................. 136
OUTLINE ........................................................... 136
AFS OPERATION ............................................. 137
HEADLAMP AUTO AIMING OPERATION ........ 139
CAN COMMUNICATION SYSTEM DESCRIP-
TION .................................................................. 139
CAN COMMUNICATION UNIT ......................... 139
Component Parts Description .............................. 140
AFS CONTROL UNIT ....................................... 140
SWIVEL ACTUATOR ........................................ 140
AIMING MOTOR ............................................... 140
AFS SWITCH .................................................... 141
HEIGHT SENSOR ............................................ 141
STEERING ANGLE SENSOR .......................... 141
IPDM E/R .......................................................... 141
ECM .................................................................. 141
TCM .................................................................. 141
UNIFIED METER AND A/C AMP. ..................... 141
COMBINATION METER ................................... 141
Schematic ............................................................ 142
Wiring Diagram — AFS — ................................... 143
Terminals and Reference Values for AFS Control
Unit ....................................................................... 149
How to Proceed with Trouble Diagnosis .............. 151
Preliminary Check ................................................ 151
CONSULT-II Function (ADAPTIVE LIGHT) .......... 152
CONSULT-II BASIC OPERATION ..................... 152
WORK SUPPORT (STEERING ANGLE SEN-
SOR ADJUSTMENT) ........................................ 152
WORK SUPPORT (LEVELIZER ADJUSTMENT)
. 152
SELF-DIAG RESULTS ...................................... 153
DATA MONITOR ............................................... 157
ACTIVE TEST ................................................... 159
Symptom Chart .................................................... 160
DTC B2503 SWIVEL ACTUATOR RH ................. 161
DTC B2504 SWIVEL ACTUATOR LH .................. 168
DTC B2514 HI SEN UNUSUAL RR ..................... 175
DTC B2521 ECU CIRC ........................................ 179
AFS Operation Check (Function Test) ................. 182
Auto Aiming Operation Check (Function Test) ..... 184
AFS Switch Does Not Operate ............................. 186
Auto Aiming Does Not Operate (Check Aiming
Motor System Circuit) ........................................... 188
AFS OFF Indicator Does Not Operate ................. 191
Removal and Installation of Steering Angle Sensor . 191
Removal and Installation of Front Combination
Lamp .................................................................... 191
Removal and Installation of AFS Control Unit ...... 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 192
Removal and Installation of AFS Switch .............. 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 192
Removal and Installation of Height Sensor .......... 193
REMOVAL ......................................................... 193
INSTALLATION ................................................. 193FRONT FOG LAMP ................................................194
Component Parts and Harness Connector Location .194
System Description ...............................................194
OUTLINE ...........................................................195
COMBINATION SWITCH READING FUNCTION .196
EXTERIOR LAMP BATTERY SAVER CONTROL .196
CAN Communication System Description ............196
CAN Communication Unit .....................................196
Schematic .............................................................197
Wiring Diagram — F/FOG — ................................198
Terminals and Reference Values for BCM ............202
Terminals and Reference Values for IPDM E/R ....203
How to Perform Trouble Diagnoses .....................203
Preliminary Check ................................................203
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................203
CONSULT-II Functions (BCM) ..............................204
CONSULT-II Functions (IPDM E/R) ......................204
Front Fog Lamps Do Not Illuminate (Both Sides) . 205
Front Fog Lamp Does Not Illuminate (One Side) . 208
Front Fog Lamps Do Not Turn OFF ......................209
Aiming Adjustment ................................................210
Bulb Replacement ................................................211
Removal and Installation ......................................211
REMOVAL .........................................................211
INSTALLATION .................................................211
TURN SIGNAL AND HAZARD WARNING LAMPS .212
Component Parts and Harness Connector Location .212
System Description ...............................................212
TURN SIGNAL OPERATION ............................212
HAZARD LAMP OPERATION ...........................213
COMBINATION SWITCH READING FUNCTION .214
CAN Communication System Description ............214
CAN Communication Unit .....................................214
Schematic .............................................................215
Wiring Diagram — TURN — .................................216
Terminals and Reference Values for BCM ............220
How to Perform Trouble Diagnoses .....................221
Preliminary Check ................................................222
CHECK POWER SUPPLY AND GROUND CIR-
CUIT ..................................................................222
CONSULT-II Functions (BCM) ..............................223
CONSULT-II BASIC OPERATION .....................223
DATA MONITOR ...............................................223
ACTIVE TEST ...................................................223
Turn Signal Lamp Does Not Operate ...................224
Hazard Warning Lamp Does Not Operate But Turn
Signal Lamp Operate ............................................226
Turn Signal Indicator Lamp Does Not Operate ....227
Bulb Replacement/Removal and Installation of Side
Turn Signal Lamp .................................................229
REMOVAL .........................................................229
INSTALLATION .................................................229
Bulb Replacement (Front Turn Signal Lamp) .......229
Bulb Replacement (Rear Turn Signal Lamp) ........229
Removal and Installation of Front Turn Signal Lamp .229
Removal and Installation of Rear Turn Signal Lamp .229
LIGHTING AND TURN SIGNAL SWITCH ..............230
Removal and Installation ......................................230

LT-24
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -
Revision: 2007 April2007 M35/M45
NOTE:
This item is displayed, but cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “BACK” deactivates the operation.
Display Item List
NOTE:
This item is displayed, but cannot be tested.HEAD LAMP SW 1 “ON/OFF”Displays status (headlamp switch 1: ON/others: OFF) of headlamp switch 1 judged from light-
ing switch signal.
HEAD LAMP SW 2 “ON/OFF”Displays status (headlamp switch 2: ON/others: OFF) of headlamp switch 2 judged from light-
ing switch signal.
TAIL LAMP SW “ON/OFF”Displays status (lighting switch 1ST or 2ND position: ON/others: OFF) of lighting switch judged
from lighting switch signal.
AUTO LIGHT SW “ON/OFF”Displays status of the lighting switch as judged from the lighting switch signal. (AUTO position:
ON/other than AUTO position: OFF)
PASSING SW “ON/OFF”Displays status (flash-to-passing switch: ON/others: OFF) of flash-to-passing switch judged
from lighting switch signal.
FR FOG SW “ON/OFF”Displays status (front fog lamp switch: ON/others: OFF) of front fog lamp switch judged from
lighting switch signal.
DOOR SW - DR “ON/OFF”Displays status of the driver door as judged from the driver door switch signal. (door is open:
ON/door is closed: OFF)
DOOR SW - AS “ON/OFF”Displays status of the passenger door as judged from the passenger door switch signal. (door
is open: ON/door is closed: OFF)
DOOR SW - RR “ON/OFF”Displays status of the rear door as judged from the rear door switch (RH) signal. (door is open:
ON/door is closed: OFF)
DOOR SW - RL “ON/OFF”Displays status of the rear door as judged from the rear door switch (LH) signal. (door is open:
ON/door is closed: OFF)
BACK DOOR SW
NOTE “OFF” —
I - KEY LOCK “ON/OFF” Displays “locked (ON)/other (OFF)” status, determined from lock signal.
OPTICAL SENSOR “0 - 5V” Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged from
optical sensor signal.
VEHICLE SPEED “km/h” Displays vehicle speed as judged from vehicle speed signal.Monitor item Contents
Test item Description
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF.
DAYTIME RUNNING LIGHT
NOTE—
HEAD LAMP (HI, LO) Allows headlamp relay to operate by switching ON-OFF.

LT-58
HEADLAMP (FOR USA) - XENON TYPE -
Revision: 2007 April2007 M35/M45
NOTE:
This item is displayed, but cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “BACK” deactivates the operation.
Display Item List
NOTE:
This item is displayed, but cannot be tested.HEAD LAMP SW 1 “ON/OFF”Displays status (headlamp switch 1: ON/others: OFF) of headlamp switch 1 judged from light-
ing switch signal.
HEAD LAMP SW 2 “ON/OFF”Displays status (headlamp switch 2: ON/others: OFF) of headlamp switch 2 judged from light-
ing switch signal.
TAIL LAMP SW “ON/OFF”Displays status (lighting switch 1ST or 2ND position: ON/others: OFF) of lighting switch
judged from lighting switch signal.
AUTO LIGHT SW “ON/OFF”Displays status of the lighting switch as judged from the lighting switch signal. (AUTO position:
ON/other than AUTO position: OFF)
PASSING SW “ON/OFF”Displays status (flash-to-passing switch: ON/others: OFF) of flash-to-passing switch judged
from lighting switch signal.
FR FOG SW “ON/OFF”Displays status (front fog lamp switch: ON/others: OFF) of front fog lamp switch judged from
lighting switch signal.
DOOR SW - DR “ON/OFF”Displays status of the driver door as judged from the driver door switch signal. (door is open:
ON/door is closed: OFF)
DOOR SW - AS “ON/OFF”Displays status of the passenger door as judged from the passenger door switch signal. (door
is open: ON/door is closed: OFF)
DOOR SW - RR “ON/OFF”Displays status of the rear door as judged from the rear door switch (RH) signal. (door is
open: ON/door is closed: OFF)
DOOR SW - RL “ON/OFF”Displays status of the rear door as judged from the rear door switch (LH) signal. (door is open:
ON/door is closed: OFF)
BACK DOOR SW
NOTE “OFF” —
I - KEY LOCK “ON/OFF” Displays “locked (ON)/other (OFF)” status, determined from lock signal.
OPTICAL SENSOR “0 - 5V” Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged from
optical sensor signal.
VEHICLE SPEED “km/h” Displays vehicle speed as judged from vehicle speed signal.Monitor item Contents
Test item Description
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF.
DAYTIME RUNNING LIGHT
NOTE—
HEAD LAMP (HI, LO) Allows headlamp relay to operate by switching ON-OFF.

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
LT-95
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
NOTE:
This item is displayed, but cannot be monitored.
ACTIVE TEST
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch item to be tested and check operation of the selected item.
4. During the operation check, touching “BACK” deactivates the operation.
Display Item List
DOOR SW - AS “ON/OFF”Displays status of the passenger door as judged from the passenger door switch signal. (door
is open: ON/door is closed: OFF)
DOOR SW - RR “ON/OFF”Displays status of the rear door as judged from the rear door switch (RH) signal. (door is
open: ON/door is closed: OFF)
DOOR SW - RL “ON/OFF”Displays status of the rear door as judged from the rear door switch (LH) signal. (door is open:
ON/door is closed: OFF)
BACK DOOR SW
NOTE “OFF” —
PKB SW “ON/OFF”Displays status (parking brake released: ON/ parking brake applied: OFF) of parking brake
switch judged from parking brake switch signal.
ENGINE RUN “ON/OFF”Displays status (engine running: ON/ engine stopped: OFF) of engine judged from engine run
signal.
I - KEY LOCK “ON/OFF” Displays “locked (ON)/other (OFF)” status, determined from lock signal.
OPTICAL SENSOR “0 - 5V” Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged from
optical sensor signal.
VEHICLE SPEED “km/h” Displays vehicle speed as judged from vehicle speed signal.Monitor item Contents
Test item Description
TAIL LAMP Allows tail lamp relay to operate by switching ON-OFF.
FR FOG LAMP Allows front fog lamp relay to operate by switching ON-OFF.
DAYTIME RUNNING LIGHT Allows daytime relay to operate by switching ON-OFF.
HEAD LAMP (HI, LO) Allows headlamp relay to operate by switching ON-OFF.

AUTO LIGHT SYSTEM
LT-115
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
AUTO LIGHT SYSTEMPFP:28491
Component Parts and Harness Connector LocationNKS003PY
System DescriptionNKS003PZ
Automatically turns ON/OFF the parking lamps and the headlamps in accordance with ambient light.
Timing for when lamps turn ON/OFF can be selected using four modes.
OUTLINE
The auto light control system has an optical sensor inside it that detects outside brightness.
When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking lamps and the head-
lamps in accordance with ambient light. Sensitivity can be adjusted in four steps. For the details of the setting,
Refer to LT- 1 2 7 , "
SETTING CHANGE FUNCTIONS" .
Optical sensor, power is supplied

from BCM (body control module) terminal 17

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 5 , "
System
Description" .
PKID0501E

LT-116
AUTO LIGHT SYSTEM
Revision: 2007 April2007 M35/M45
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-50, "CAN System Specification Chart" .
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)