warning INFINITI M35 2007 Factory Service Manual

TROUBLE DIAGNOSIS
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Revision: 2007 April2007 M35/M45
Steering Angle Sensor Branch Line CircuitNKS004GH
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 steering angle sensor for damage, bend and loose connection
(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 steering angle sensor.
2. Check the resistance between the steering angle sensor harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the steering angle sensor branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the steering angle sensor. Refer to BRC-14, "
Schematic"
(Models with VDC), LT- 1 4 2 , "Schematic" (Models with AFS).
OK or NG
OK >>
Present error: Replace the steering angle sensor. Refer to BRC-60, "Removal and Installation" .

Past error: Error was detected in the steering angle sensor branch line.
NG >> Repair the power supply and the ground circuit.
Low Tire Pressure Warning Control Unit Branch Line CircuitNKS004H3
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 low tire pressure warning control unit for damage, bend and
loose connection (unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
Steering angle sensor harness connector
Resistance (Ω)
Connector No. Terminal No.
M47 4 5 Approx. 54 – 66

LAN-98
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of low tire pressure warning control unit.
2. Check the resistance between the low tire pressure warning control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the low tire pressure warning control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the low tire pressure warning control unit. Refer to WT-13,
"Schematic" .
OK or NG
OK >>
Present error: Replace the low tire pressure warning control unit. Refer to WT-40, "Low Tire
Pressure Warning Control Unit" .

Past error: Error was detected in the low tire pressure warning control unit branch line.
NG >> Repair the power supply and the ground circuit.
RAS Control Unit Branch Line CircuitNKS004H4
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 RAS control unit for damage, bend and loose connection (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 RAS control unit.
2. Check the resistance between the RAS control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Replace the body No. 2 harness.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the RAS control unit. Refer to STC-20, "
Schematic" .
OK or NG
OK >>
Present error: Replace the RAS control unit.

Past error: Error was detected in the RAS control unit branch line.
NG >> Repair the power supply and the ground circuit.
Low tire pressure warning control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M19 15 16 Approx. 54 – 66
RAS control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B476 1 8 Approx. 54 – 66

LT-3
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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-6
PRECAUTIONS
Revision: 2007 April2007 M35/M45
PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS003NW
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

LT-138
ACTIVE AFS
Revision: 2007 April2007 M35/M45

through front combination lamp RH terminal 21.
Swivel position sensor detects swivel angle during ignition switch ON, and transmits swivel position sensor
signals to the AFS control unit:
When ignition switch is turn to ON position, power is supplied

to front combination lamp RH terminal 15

through AFS control unit terminal 4.
When ignition switch is turn to ON position, swivel position sensor input signal is supplied

to AFS control unit terminal 9

through front combination lamp RH terminal 14.
Ground is supplied

to front combination lamp RH terminal 19

through AFS control unit terminal 2.
The low beam headlamp RH starts to swivel to the right.
The swivel motor driving signals are blocked and the swivel motion stops when the steering angle reaches
approximately more than 80 degrees (predetermined). The low beam headlamp will not swivel any further no
matter how further right. As the steering wheel is turned back to the left, the swivel motor driving signals (both
1-phase and 2-phase) will be reversed, causing low beam headlamp RH to start swiveling to the left. When
steering angle becomes smaller than predetermined value, the low beam headlamp is set in the straight-
ahead position, swivel motor driving signals are blocked and low beam headlamps stop swiveling.
AFS OFF INDICATOR OPERATION
In response to the state of control, AFS control unit switches com-
mands of AFS off indicator signal sent to unified meter and A/C amp.
via CAN communication; and then turns on/off or blinks AFS off indi-
cator lamp built in the combination meter depending on the following
condition.

Bulb check operation
AFS off indicator lamp is turned off after illuminating for one sec-
ond as a bulb check for AFS off indicator lamp when turn ignition
switch ON is detected.
NOTE:
AFS off indicator lamp is turned off without a lapse of one sec-
ond when start of the engine is detected.

AFS switch operation
AFS off indicator lamp is illuminated while AFS switch is OFF.
AFS off indicator lamp is turned off while AFS switch is ON.

System warning operation
AFS off indicator lamp illuminates at intervals of approximately one second when AFS control unit detects
any specific DTC (diagnosis trouble code), or when unified meter and A/C amp. cannot receive AFS off
indicator signals.
NOTE:
Unified meter and A/C amp. transmits a command to combination meter to blink AFS off indicator lamp
when they cannot receive AFS off indicator signal.
SWIVEL ACTUATOR INITIALIZATION
AFS control unit performs swivel operation to initialize swivel actuator when start of the engine is detected.
Straight-ahead position of low beam headlamps is adjusted by turning low beam headlamps to outside vehicle
with specified swivel angle after turning it to the center of vehicle and making sure that it reaches the stopper.
Swivel actuator initialization shall be performed every time when start of the engine is detected.
SKIB4765E

LT-212
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45
TURN SIGNAL AND HAZARD WARNING LAMPSPFP:26120
Component Parts and Harness Connector LocationNKS003RK
System DescriptionNKS003RL
TURN SIGNAL OPERATION
With the ignition switch is in the ON or START position, power is supplied

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM (body control module) terminal 38,

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

to combination meter terminal 12,

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

to unified meter and A/C amp. terminal 53.
Ground is supplied

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.
PKIC0620E

TURN SIGNAL AND HAZARD WARNING LAMPS
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Revision: 2007 April2007 M35/M45
LH Turn Signal Lamp
When turn signal switch is moved to left position, BCM receives input signal requesting left turn signals to
flash. 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, and

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

to front combination lamp LH (turn signal) terminal 9

to side turn signal lamp LH terminal 2

through grounds E22 and E43,

to rear combination lamp LH (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 turn signal indicator
turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the LH turn signal lamps.
RH Turn Signal Lamp
When turn signal switch is moved to right position, BCM receives input signal requesting right turn signals to
flash. BCM then supplies power

through BCM terminal 46

to front combination lamp RH (turn signal) terminal 10

to side turn signal lamp RH terminal 1, and

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

to front combination lamp RH (turn signal) terminal 9

to side turn signal lamp RH terminal 2

through grounds E22 and E43,

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 right turn signal indicator
turn on in combination meter.
With power and input supplied, the BCM controls the flashing of the RH turn signal lamps.
HAZARD LAMP OPERATION
Power is supplied at all times

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

to BCM terminal 55,

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

to BCM terminal 42

to combination meter terminal 23,

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

to unified meter and A/C amp. terminal 54.
When the hazard switch is depressed, ground is supplied

to BCM terminal 29

through multifunction switch terminal 6.
Ground is supplied

to multifunction switch terminal 14

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" .

TURN SIGNAL AND HAZARD WARNING LAMPS
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Revision: 2007 April2007 M35/M45
SchematicNKS003RO
TKWT3380E

LT-216
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2007 April2007 M35/M45
Wiring Diagram — TURN —NKS003RP
TKWT3381E