vdc INFINITI M35 2007 Factory Service Manual

LAN-54
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45

*1: Models with adaptive front-lighting system

*2: Models with lane departure warning

*3: Models with rear active steer

*4: Models with ICC system Seat belt buckle switch signal R T
Target A/C evaporator temperature signal R T
Vehicle speed signalRRR RRRT RR R
RRRRR TR
Steering angle sensor signal R T R R
Tire pressure data signal R T
Tire pressure signalRR T
TR
RAS signalTR
A/T shift schedule change demand signal R T
ABS malfunction signalTR
ABS operation signal TR
ABS warning lamp signal R T
Brake pressure control signalTR
Brake warning lamp signal R T
Side G sensor signal R T
SLIP indicator lamp signal R T
TCS malfunction signalTR
TCS operation signal TR
VDC malfunction signalTR
VDC OFF indicator lamp signal R T
VDC OFF switch signalTR
VDC operation signalTR
Deceleration degree commandment value signalRT
ICC OD cancel request signal R T
ICC operation signal R T
ICC warning lamp signal R T
Front wiper stop position signal R T
High beam status signal RT
Hood switch signal R T
Low beam status signal R R T
Rear window defogger control signal R R T
Starter relay status signal R TSignals
ECM
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
RAS
*3
PSB
ADP
ABS
ICC
*4
IPDM-E

TROUBLE DIAGNOSIS
LAN-57
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LAN
Revision: 2007 April2007 M35/M45

*1: Models with adaptive front-lighting system

*2: Models with lane departure warning

*3: Models with ICC system Seat belt buckle switch signal R T
Target A/C evaporator temperature signal R T
Vehicle speed signalRRRRRRT RRR
RRRRR TR
Steering angle sensor signal R T R
Tire pressure data signal R T
Tire pressure signalRR T
TR
A/T shift schedule change demand signal R T
ABS malfunction signalTR
ABS operation signal TR
ABS warning lamp signal R T
Brake pressure control signalTR
Brake warning lamp signal R T
Side G sensor signal R T
SLIP indicator lamp signal R T
TCS malfunction signalTR
TCS operation signal TR
VDC malfunction signalTR
VDC OFF indicator lamp signal R T
VDC OFF switch signalTR
VDC operation signalTR
Deceleration degree commandment value signalRT
ICC OD cancel request signal R T
ICC operation signal R T
ICC warning lamp signalRT
Front wiper stop position signal R T
High beam status signal RT
Hood switch signal R T
Low beam status signal R R T
Rear window defogger control signal R R T
Starter relay status signal R TSignals
ECM
4WD
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
PSB
ADP
ABS
ICC
*3
IPDM-E

TROUBLE DIAGNOSIS
LAN-97
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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

LT-152
ACTIVE AFS
Revision: 2007 April2007 M35/M45
CONSULT-II Function (ADAPTIVE LIGHT)NKS003QM
CONSULT-II can display each diagnostic item using diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT (STEERING ANGLE SENSOR ADJUSTMENT)
Work Support Item List
CAUTION:
Never use this function but on VDC side.
Notes on Steering Angle Sensor (Neutral Point) Adjustment

Be sure to adjust steering angle sensor neutral point before driving if any of the following has been
removed/installed or replaced: Steering angle sensor; Steering system part, Suspension system part.

On vehicle with VDC, perform steering angle sensor neutral point adjustment only on VDC side. Never
perform the adjustment on ADAPTIVE LIGHT side as this may lead to VDC malfunctions. If the adjust-
ment has been performed on AFS side, readjust on VDC side. For steering angle sensor neutral point
adjustment procedures on VDC side, refer to BRC-6, "
Adjustment of Steering Angle Sensor Neutral Posi-
tion" in “ON-VEHICLE SERVICE”.

When replaced steering angle sensor, AFS control unit detects “DTC B2515 ST ANG SEN SIG”. Delete
the malfunction history after adjust steering angle sensor on VDC side.

Steering angle sensor neutral point adjustment should be performed using CONSULT-II. (The adjustment
will not be possible without CONSULT-II.)
Operation Procedure
Refer to BRC-6, "Adjustment of Steering Angle Sensor Neutral Position" .
WORK SUPPORT (LEVELIZER ADJUSTMENT)
Work Support Item List
Operation Procedure
1. Set the vehicle in unload condition. (Removal all loads in driver, passenger and trunk rooms.)
2. Touch “ADAPTIVE LIGHT” on “SELECT SYSTEM” screen.
3. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
4. Touch “LEVELIZER ADJUSTMENT”.
5. Touch “START”.
6. “ADJUSTMENT COMPLETE” will be displayed.
CAUTION:
When “CAN NOT BE TESTED” is displayed, AFS control unit stops levelizer adjustment as it
detected the change of height sensor signal. AFS control unit detects “DTC B2519 LEVELIZER
CALIB”.
System part Check item, diagnosis mode Description
ADAPTIVE LIGHTWORK SUPPORTAdjusts steering angle sensor (Never use this function but on VDC side) and
adjusts levelizer.
SELF-DIAG RESULTS Displays self-diagnosis
DATA MONITOR Displays AFS control unit inputs and outputs in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TESTAFS control unit sends a drive signal to electronic components to check their
operation.
ECU PART NUMBER AFS control unit part number can be read.
Item Description
ST ANG SEN ADJUSTMENT Adjust steering angle sensor neutral point (straight-ahead position).
Item Description
LEVELIZER ADJUSTMENT Adjust the height sensor signal value at unloaded vehicle position recognized by AFS control unit.

LT-294
ILLUMINATION
Revision: 2007 April2007 M35/M45
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU located in the IPDM E/R controls the tail lamp relay coil,
which, when energized, directs power

through IPDM E/R terminal 21

to combination meter terminal 13

to LDW switch (illumination) terminal 5 (with lane departure warning)

to VDC off switch (illumination) terminal 3

to trunk lid opener switch (illumination) terminal 3

to combination switch (spiral cable) terminal 24

to door mirror remote control switch (illumination) terminal 16

to AFS switch (illumination) terminal 5 (with AFS)

to rear sunshade front switch (illumination) terminal 5 (with rear control switch)

to A/T illumination terminal 1

to snow mode switch (illumination) terminal 5 (AWD models)

to rear control cancel switch (illumination) terminal 4 (with rear control switch)

to clock terminal 3

to multifunction switch terminal 3

to audio unit terminal 9

to DVD player terminal 18 (with DVD player)

to NAVI control unit terminal 61 (with navigation system)

to AV control unit terminal 61 (without navigation system)

to climate controlled seat switch driver side (illumination) terminal 7 (with climate controlled seat)

to climate controlled seat switch passenger side (illumination) terminal 7 (with climate controlled seat)

to ashtray illumination (rear LH) terminal 1

to ashtray illumination (rear RH) terminal 1

to illumination control switch terminal 1

to cigarette lighter socket (illumination) terminal 2

to map lamp (illumination) terminal 8

to power window main switch illumination terminal 1

to glove box lamp terminal 1

to rear control switch terminal 2

to rear power seat switch RH (illumination) terminal 4 (with rear control switch)

to rear heated seat switch RH (illumination) terminal 7 (with rear control switch)

to rear sunshade cancel relay terminal 6 (with rear control switch)

to automatic return cancel switch (illumination) terminal 4 (with rear control switch)

to rear power seat switch LH (illumination) terminal 4 (with rear control switch) and

to rear heated seat switch LH (illumination) terminal 7 (with rear control switch),

through Intelligent Key unit terminal 12

to push button ignition switch (illumination) terminal 3.
Ground is supplied

to combination meter terminal 14

to combination meter terminal 9, 10 and 11

to push button ignition switch (illumination) terminal 2

to LDW switch (illumination) terminal 4 (with lane departure warning)

to VDC off switch (illumination) terminal 4

to trunk lid opener switch (illumination) terminal 4

to combination switch (spiral cable) terminal 25

HARNESS
PG-97
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Revision: 2007 April2007 M35/M45
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE)
PHSB1 EC Camshaft Position Sensor (PHASE) (Bank 1)
PHSB2 EC Camshaft Position Sensor (PHASE) (Bank 2)
PNP/SW AT Park/Neutral Position Switch
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (CKPS) (POS)
POWER PG Power Supply Routing Circuit
PRE/SE EC EVAP Control System Pressure Sensor
PS/SEN EC Power Steering Pressure Sensor
PSB SB Pre-Crash Seat Belt
R/SEAT SE Auto Return Seat
RAS STC Rear Active Steer
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor
SEAT SE Power Seat
SEN/PW EC Sensor Power Supply
SHADE EI Rear Sunshade
SHIFT AT A/T Shift Lock System
SNOWSW EC Snow Mode Switch
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
START SC Starting System
STOP/L LT Stop Lamp
STSIG AT Start Signal Circuit
T/WARN WT Low Tire Pressure Warning System
TAIL/L LT Parking, License and Tail Lamps
TLID BL Trunk Lid Opener
TPS1 EC Throttle Position Sensor (Sensor 1)
TPS2 EC Throttle Position Sensor (Sensor 2)
TPS3 EC Throttle Position Sensor
TRNSCV BL Homelink Universal Transceiver
TURN LT Turn Signal and Hazard Warning Lamp
VDC BRC Vehicle Dynamics Control System
VEHSEC BL Vehicle Security System
VENT/V EC EVAP Canister Vent Control Valve
VIAS EC Variable Induction Air Control System
VIAS/V EC VIAS Control Solenoid Valve
VSSA/T AT Vehicle speed Sensor A/T (Revolution Sensor)
WARN DI Warning Lamps
WINDOW GW Power Window
WIPER WW Front Wiper and Washer Code Section Wiring Diagram Name

STC-2Revision: 2007 April2007 M35/M45 Inspection 3: RAS Motor Output Malfunction ......... 37
Inspection 4: Vehicle Speed Signal ........................ 38
Inspection 5: Steering Angle Signal Malfunction .... 39
Inspection 6: Rear Main Signal and Rear Sub Signal
Malfunction ............................................................. 40
Inspection 7: VDC Malfunction ............................... 43
Inspection 8: Engine Speed Signal Malfunction ..... 44
Inspection 9: CAN Communication System Mal-
function ................................................................... 44Inspection 10: Stop Lamp Switch Harness ............. 45
Inspection 11: RAS Warning Lamp Harness ........... 46
Diagnosis Chart by Symptom 1 .............................. 47
Diagnosis Chart by Symptom 2 .............................. 47
Check RAS Static/Dynamic Characteristics ............ 49
Component Inspection ............................................ 50
RAS MOTOR RELAY ........................................... 50
RAS MOTOR ....................................................... 50
REAR WHEEL STEERING ANGLE SENSOR .... 50

STC-16
[RAS]
SYSTEM DESCRIPTION
Revision: 2007 April2007 M35/M45
SYSTEM DESCRIPTIONPFP:00000
ComponentsNGS000E8
RAS (Rear Active Steer) FunctionNGS000E9
A. RAS control unit B. Model following control C. Target vehicle dynamics model
D. Rear wheel steering angle com-
mand value operationE. Rear wheel steering angle servo F. Vehicle speed signal (CAN)
G. Steering angle signal (CAN) H. Vehicle speed sensor I. Steering angle sensor
J. RAS actuator assembly
SGIA1241E
Part name Function
RAS control unit

Calculate the vehicle speed signal from CAN communication and the signals from steering
angle sensor and rear wheel steering angle sensor by a computer, and then control the rear
wheel steering angle.

Fail-safe function is activated when the electrical system is malfunctioning. The output signal
to the actuator is turned OFF during this mode. At that time, the RAS warning lamp illumi-
nates and indicates the system is malfunctioning.

It performs the communication control function with other control units via CAN communica-
tion.

This enables system diagnosis with CONSULT-II.
RAS actuatorThe efficiency of the rear wheel steer improves by locating the electric motor actuator into the
lower link of rear suspension.
Steering angle sensor

Measure the steering angle and send it to RAS control unit via CAN communication.

It is shared with the steering angle sensor for VDC.
Rear wheel steering angle sensor

It sends the rear wheel steering angle status to RAS control unit. The accuracy of rear wheel
steer improves by comparing the vehicle speed signal from CAN communication with the
rear wheel steering angle target value calculated from the wheel angle sensor signal, and it
controls them.

There are 2 types of rear wheel steering angle sensors (main/sub). If one of them is malfunc-
tioning, the other operates the fail-safe mode and stops the control.
RAS warning lamp

It turns on when the fail-safe function is operated and indicates that a RAS control malfunc-
tion has occurred.

It turns on when ignition switch turns on and turns off after the engine is started.

It indicates the suspect system by blinking when performing the self-diagnosis (without CON-
SULT-II).

TROUBLE DIAGNOSIS
STC-29
[RAS]
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STC
Revision: 2007 April2007 M35/M45
How to Erase Self-Diagnostic Results
1. Perform applicable inspection of malfunctioning item and then repair or replace.
2. Start engine, and touch “START (NISSAN BASED VHCL)” “RAS/HICAS” “SELF-DIAG RESULTS” and
“ERASE” in this order to erase the diagnostic memory.
CAUTION:
If memory cannot be erased, repeat step 1, 2.
3. Perform self-diagnosis again, and make sure that DTC memory is erased.
C1910 MOTOR OUTPUT [MOTOR LOCK]When 17 A or more current flows to
the motor, the rear wheel steering
angle sensor signal does not
change for some time.STC-37
C1919 VEHICLE SPEED SEN [NO SIGNAL]No vehicle speed signal is input for
some time.STC-38
C1900 CONTROL UNIT [ABNORMAL1]
Control unit malfunctionSTC-35
C1901 CONTROL UNIT [ABNORMAL2]
C1905 CONTROL UNIT [ABNORMAL3]
C1906 CONTROL UNIT [ABNORMAL5]
C1907 CONTROL UNIT [ABNORMAL4]
C1908 CONTROL UNIT [ABNORMAL7]
C1909 CONTROL UNIT [ABNORMAL6]
C1922 CONTROL UNIT [ABNORMAL8]
C1927 CONTROL UNIT [ABNORMAL5]
C1928 CONTROL UNIT [ABNORMAL9]
C1920 STEERING ANGLE SEN [NO SIGNAL]No steering angle signal is input for
some time.STC-39
C1926 STEERING ANGLE SEN

An unexpected signal is input.

Steering angle sensor outputs the
malfunction signal.STC-39
C1929 VDCABS actuator and electric unit (con-
trol unit) outputs the malfunction
signal.STC-43
U1000 CAN COMM CIRCUITWhen a RAS control unit is not
transmitting or receiving CAN com-
munication signal 2 seconds or
more.STC-44
U1010 CONTROL UNIT (CAN)When detecting error during the ini-
tial diagnosis of CAN controller of
RAS control unit.STC-44
DTC Diagnostic item Diagnostic item is detected when... Check items

TROUBLE DIAGNOSIS
STC-31
[RAS]
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Revision: 2007 April2007 M35/M45
Diagnosis Procedure with Self-Diagnosis Function (Without CONSULT-II)NGS000EL
DESCRIPTION
If a malfunction is detected in the system, the RAS warning lamp turns on and indicates the malfunction. At
that time, fail-safe activates, and then stops the function.
SELF-DIAGNOSIS PROCEDURE
1. Start engine.
2. Turn steering wheel left and right at 20° or more and 5 times or more within 10 seconds. And then depress
the service brake 5 times or more.
3. RAS warning lamp blinks (displays normal/malfunction).
SELF-DIAGNOSIS DISPLAY
RAS warning lamp blinks and displays the self-diagnostic results.

Only DTCs are displayed as the pattern shown in the figure, and
then repeat the display.

If all items are normal, RAS warning lamp blinks at 4 Hz cycle.
SELF-DIAGNOSIS DISPLAY ITEMS
HOW TO ERASE SELF-DIAGNOSIS
If there is the history data for when the fail-safe has activated in the past, erase the memory with CONSULT-II.
Refer to STC-29, "
How to Erase Self-Diagnostic Results" .
CAN CommunicationNGS000EM
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. Refer to LAN-50, "
CAN Sys-
tem Specification Chart" .
SGIA1243E
DTC (warning lamp blinks) Diagnosis item Inspection item
11 RAS control unitSTC-35, "
Inspection 1: RAS Control Unit Malfunction"
12 Motor power supplySTC-35, "Inspection 2: Motor Power Supply System"
13 Motor outputSTC-37, "Inspection 3: RAS Motor Output Malfunction"
21 Vehicle speed signalSTC-38, "Inspection 4: Vehicle Speed Signal"
22 Steering angle signalSTC-39, "Inspection 5: Steering Angle Signal Malfunction"
24 Rear wheel steering angle (main)STC-40, "Inspection 6: Rear Main Signal and Rear Sub Signal
Malfunction"
25 Rear wheel steering angle (sub)STC-40, "Inspection 6: Rear Main Signal and Rear Sub Signal
Malfunction"
26 VDCSTC-43, "Inspection 7: VDC Malfunction"
33 Engine speed signalSTC-44, "Inspection 8: Engine Speed Signal Malfunction"