2007 INFINITI M35 display

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-273
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Revision: 2007 April2007 M35/M45
7. TROUBLE DIAGNOSIS
Repair IVIS (NATS) according to “SELF DIAGNOSIS”.
NOTE:
Do not erase “SELF DIAGNOSIS” using CONSULT-II.
>> GO TO 8.
8. CONFIRM SELF DIAGNOSIS
Confirm SELF DIAGNOSIS “ECM” using CONSULT-II.
>> GO TO 9.
9. CONFIRM SELF DIAGNOSIS DISPLAY
In case that malfunction of engine control system is displayed other than “NATS MALFUNCTION” in “SELF
DIAGNOSIS”, repair engine control system.
NOTE:
In case that only “NATS MALFUNCTION” is displayed, erase record of “SELF DIAGNOSIS”.
>> GO TO 10.
10. CHECK ENGINE FOR START
Check that the engine can be started when Push-button ignition switch is operated with Intelligent Key
inserted into the key slot.
NG >> GO TO 2.
OK >> GO TO 11.
11 . CONFIRM SELF DIAGNOSIS
Confirm SELF DIAGNOSIS “ECM” using CONSULT-II.
“NO DTC” is displayed.>>Inspection END.
Malfunction information is displayed.>>GO TO 2.

BL-274
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
Symptom Chart for Security IndicatorNIS0020Q
Security indicator does not turn ON or flash.
CAUTION:

Follow Trouble Diagnosis Flowchart referring to “Diagnosis Procedure”. Determine malfunction-
ing condition before performing this diagnosis.

Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting
diagnosis.

Check systems shown in the “Action” column in this order.
CONDITIONS OF VEHICLE (OPERATING CONDITIONS)

Intelligent Key is not inserted into key slot.

Engine switch is not depressed.
Check Security Indicator HarnessNIS0020R
1. SECURITY INDICATOR LAMP ACTIVE TEST
With CONSULT-II
Check (“THEFT IND”) in “ACTIVE TEST” mode with CONSULT-II.
OK or NG
OK >> Security indicator lamp is OK.
NG >> GO TO 2.
Action Reference page
1. Check security indicator harnessBL-274
2. Replace BCMBCS-15
Perform operation shown on display indicator lamp
should illuminate.
PIIA7005E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Revision: 2007 April2007 M35/M45
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect multifunction switch (security indicator) connector.
3. Check voltage between multifunction switch (security indicator)
connector and ground.
OK or NG
OK >> Check the following.

Harness for open or short between BCM and multifunction switch (security indicator)

Security indicator lamp condition
NG >> Check the following.

15A fuse [No.37, located in fuse block (J/B)]

Harness for open or short between multifunction switch (security indicator) and fuse
DTC P1612 CHAIN of ECM-IMMUNIS0020S
Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-II screen
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, then perform the trouble diagno-
sis of malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
CAN Com-
munication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU”
displayed on CONSULT-II screen.
NOTE:
In rare case, “CHAIN OF ECM-IMMU” might be stored during key
registration procedure, even if the system is not malfunctioning.
Is CONSULT-II screen displayed as shown in figure?
Ye s > > G O T O 2 .
No >> GO TO BL-268, "
“NATS V5.0” SELF-DIAGNOSTIC
RESULTS ITEM CHART" .
Terminals
Voltage (V)
(Approx.) (+)
(–) multifunction switch
(security indicator)
connectorTerminal
M69 1 Ground Battery voltage
PIIB6218E
PIIA1260E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-277
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Revision: 2007 April2007 M35/M45
DTC P1611 ID DISCORD, IMM-ECMNIS0020T
Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” displayed on CONSULT-II screen.
NOTE:
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
Is CONSULT-II screen displayed as shown in figure?
Ye s > > G O T O 2 .
No >> GO TO BL-268, "
“NATS V5.0” SELF-DIAGNOSTIC
RESULTS ITEM CHART" .
2. PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-II Operation Manual NATS-
IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows message on the screen.
Can the system be initialized?
Ye s > >
Start engine. (END)

(System initialization had not been completed.)
No >> ECM is malfunctioning.

Replace ECM.

Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”
Removal and Installation of Key SlotNIS0020U
REMOVAL
1. Remove instrument driver lower panel. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect key slot connector.
3. Remove key slot mounting screw, and then remove key slot.
INSTALLATION
Installation is in the reverse order of removal.
PIIA1262E
SEL297W
PIIB6284E

BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
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SECTION BRC
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BRC
Revision: 2007 April2007 M35/M45
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Procedures without Cowl Top Cover ..... 3
Precautions for Brake System .................................. 3
Precautions for Brake Control .................................. 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 5
ON-VEHICLE SERVICE ............................................. 6
Adjustment of Steering Angle Sensor Neutral Posi-
tion ........................................................................... 6
SYSTEM DESCRIPTION ............................................ 7
System Diagram ....................................................... 7
Functions .................................................................. 7
ABS ....................................................................... 7
EBD ....................................................................... 7
TCS ....................................................................... 8
VDC ....................................................................... 8
ECD ....................................................................... 8
Operation That Is Not "System Error" ...................... 8
ABS ....................................................................... 8
TCS ....................................................................... 8
VDC ....................................................................... 8
Hydraulic Circuit Diagram ........................................ 9
CAN Communication ................................................ 9
SYSTEM DESCRIPTION ...................................... 9
TROUBLE DIAGNOSIS ............................................ 10
Fail-Safe Function .................................................. 10
ABS, EBD SYSTEM ............................................ 10
VDC/TCS ............................................................ 10
How to Perform Trouble Diagnoses ....................... 10
BASIC CONCEPT ............................................... 10
DIAGNOSIS FLOW CHART ................................ 11
ASKING COMPLAINTS ...................................... 12
EXAMPLE OF DIAGNOSIS WORKSHEET ........ 12
Component Parts Location ..................................... 13
Schematic .............................................................. 14Wiring Diagram — VDC — ..................................... 15
Control Unit Input/Output Signal Standard ............. 21
REFERENCE VALUE FROM CONSULT-II ......... 21
CONSULT-II Functions (ABS) ................................ 23
CONSULT-II MAIN FUNCTION ........................... 23
CONSULT-II SETTING PROCEDURE ................ 23
Self-Diagnosis ........................................................ 24
OPERATION PROCEDURE ................................ 24
ERASE MEMORY ............................................... 24
DISPLAY ITEM LIST ........................................... 25
Data Monitor ........................................................... 28
OPERATION PROCEDURE ................................ 28
DISPLAY ITEM LIST ........................................... 28
Active Test .............................................................. 30
OPERATION PROCEDURE ................................ 30
TEST ITEMS ....................................................... 31
For Fast and Accurate Diagnosis ........................... 32
PRECAUTIONS FOR DIAGNOSIS ..................... 32
Basic Inspection ..................................................... 33
BASIC INSPECTION 1: BRAKE FLUID LEVEL,
LEAK INSPECTION AND BRAKE PAD .............. 33
BASIC INSPECTION 2: LOOSENESS OF
POWER SYSTEM TERMINALS AND BATTERY ... 33
BASIC INSPECTION 3: ABS WARNING LAMP,
BRAKE WARNING LAMP, VDC OFF INDICATOR
LAMP AND SLIP INDICATOR LAMP .................. 33
TROUBLE DIAGNOSIS FOR SYSTEM .................... 34
Wheel Sensor Circuit .............................................. 34
INSPECTION PROCEDURE .............................. 34
Engine System ....................................................... 36
INSPECTION PROCEDURE .............................. 36
ABS Actuator and Electric Unit (Control Unit) ........ 36
INSPECTION PROCEDURE .............................. 36
ABS Actuator and Electric Unit (Control Unit) Power
Supply and Ground Circuit ..................................... 37
INSPECTION PROCEDURE .............................. 37
ABS Motor and Motor Relay Circuit ........................ 38
INSPECTION PROCEDURE .............................. 38
Solenoid, VDC Change-Over Valve and Actuator
Relay Circuit ........................................................... 39

TROUBLE DIAGNOSIS
BRC-21
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Revision: 2007 April2007 M35/M45
Control Unit Input/Output Signal StandardNFS000RH
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The display shows ABS actuator and electric unit (control unit) calculation data, so a normal value
might be displayed even in the event the output circuit (harness) is open or short-circuited.
Monitor item Display contentData monitor
ConditionReference value in nor-
mal operation
FR LH SENSOR
FR RH SENSOR
RR LH SENSOR
RR RH SENSORWheel speedVehicle stopped 0 [km/h (MPH)]
Vehicle running (Note 1)Nearly matches the
speedometer display
(± 10 % or less)
STOP LAMP SW Brake pedal operationWhen brake pedal is depressed ON
When brake pedal is not depressed OFF
BATTERY VOLTBattery voltage supplied to the ABS
actuator and electric unit (control unit)Ignition switch ON 10 – 16 V
GEAR Gear position determined by TCM1st gear
2nd gear
3rd gear
4th gear
5th gear1
2
3
4
5
SLCT LVR POSI A/T select lever positionP position
R position
N position
D positionP
R
N
D
OFF SW VDC OFF switchVDC OFF switch :ON
(When VDC OFF indicator lamp is ON)ON
VDC OFF switch :OFF
(When VDC OFF indicator lamp is OFF)OFF
YAW RATE SENYaw rate detected by yaw rate/side G
sensorWhen vehicle stop Approx. 0 d/s
When vehicle turning (–75 to 75 d/s)
4WD MODE MON
(Note 2)AWD activated Engine running AUTO
ACCEL POS SIG Throttle actuator opening/closing is dis-
played (linked with accelerator pedal)Accelerator pedal not depressed
(Engine stopped)0 %
Depress accelerator pedal
(Engine stopped)0 - 100 %
SIDE G-SENSOR Transverse G detected by side G sensorVehicle stopped
Approx. 0 m/s
2
Vehicle turning rightNegative value
(m/s2 )
Vehicle turning leftPositive value
(m/s
2 )
STR ANGLE SIGSteering angle detected by steering
angle sensorStraight-ahead Approx. 0°
Steering wheel turned –720 to 720°
PRESS SENSORBrake fluid pressure detected by pres-
sure sensorWith ignition switch turned ON and brake
pedal releasedApprox. 0 bar
With ignition switch turned ON and brake
pedal depressed–40 to 300 bar
ENGINE RPM Engine speedWith engine stopped 0 rpm
Engine runningAlmost in accordance
with tachometer display

BRC-22
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
FLUID LEV SW Brake fluid level switchBrake fluid level switch ON ON
Brake fluid level switch OFF OFF
PARK BRAKE SW Parking brake switchParking brake switch is active ON
Parking brake switch is inactive OFF
FR RH IN SOL
FR RH OUT SOL
FR LH IN SOL
FR LH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOLOperation status of all solenoid valve Actuator (solenoid valve) is active
(“ACTIVE TEST” with CONSULT-II) or
actuator relay is inactive (in fail-safe
mode)ON
When the actuator (solenoid valve) is not
active and actuator relay is active (igni-
tion switch ON)OFF
MOTOR RELAY Motor and motor relay operationWhen the motor relay and motor are
operatingON
When the motor relay and motor are not
operatingOFF
ACTUATOR RLY
(Note 3)Actuator relay operationWhen the actuator relay is operating ON
When the actuator relay is not operating OFF
ABS WARN LAMPABS warning lamp
(Note 4)When ABS warning lamp is ON ON
When ABS warning lamp is OFF OFF
OFF LAMPVDC OFF indicator lamp
(Note 4)When VDC OFF indicator lamp is ON ON
When VDC OFF indicator lamp is OFF OFF
SLIP LAMPSLIP indicator lamp
(Note 4)When SLIP indicator lamp is ON ON
When SLIP indicator lamp is OFF OFF
4WD FAIL REQ
(Note 2)AWD control unit fail-safe signal When AWD control unit is fail-safe mode ON
When AWD control unit is normal OFF
SNOW MODE SW Snow mode switchWhen snow mode switch is ON ON
When snow mode switch is OFF OFF
BST OPER SIG Not applied but displayed — OFF
M-MODE SIG Manual mode operationWhen the manual mode is active ON
When the manual mode is inactive OFF
EBD SIGNAL EBD operationEBD is active ON
EBD is inactive OFF
ABS SIGNAL ABS operationABS is active ON
ABS is inactive OFF
TCS SIGNAL TCS operationTCS is active ON
TCS is inactive OFF
VDC SIGNAL VDC operationVDC is active ON
VDC is inactive OFF
EBD FAIL SIG EBD fail-safe signalIn EBD fail-safe ON
EBD is normal OFF
ABS FAIL SIG ABS fail-safe signalIn ABS fail-safe ON
ABS is normal OFF
TCS FAIL SIG TCS fail-safe signalIn TCS fail-safe ON
TCS is normal OFF Monitor item Display contentData monitor
ConditionReference value in nor-
mal operation

TROUBLE DIAGNOSIS
BRC-23
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Revision: 2007 April2007 M35/M45
Note 1: Confirm tire pressure is normal.
Note 2: Only AWD models.
Note 3: A brief moment of ON/OFF condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it
is an operation for checking.
Note 4: On and off timing for warning lamp and indicator lamp. Refer to BRC-33, "
ON and OFF Timing for Warning Lamp and Indicator
Lamp" .
CONSULT-II Functions (ABS)NFS000QF
CONSULT-II MAIN FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II SETTING PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
VDC FAIL SIG VDC fail-safe signalIn VDC fail-safe ON
VDC is normal OFF
CRANKING SIG Crank operationCrank is active ON
Crank is inactive OFF
USV[FR-RL]
USV[FL-RR]
HSV[FR-RL]
HSV[FL-RR]
(Note 3)VDC switch-over valveWhen actuator (switch-over valve) is
active (“ACTIVE TEST” with CONSULT-
II) or actuator relay is inactive (when in
fail-safe mode)ON
When actuator (switch-over valve) is not
active and actuator relay is active (igni-
tion switch ON)OFF
V/R OUTPUT
(Note 3)Solenoid valve relay activatedWhen the solenoid valve relay is active ON
When the solenoid valve relay is not
active (in the fail-safe mode)OFF
M/R OUTPUT Actuator motor and motor relay activatedWhen the actuator motor and motor relay
are active (“ACTIVE TEST” with CON-
SULT-II)ON
When the actuator motor and motor relay
are inactiveOFF Monitor item Display contentData monitor
ConditionReference value in nor-
mal operation
Diagnostic test mode Function Reference
WORK SUPPORTThis mode enables a technician to adjust some devices faster and
more accurately by following the indications on CONSULT-II.BRC-6, "
Adjustment of Steer-
ing Angle Sensor Neutral
Position"
SELF-DIAG RESULTS Self-diagnostic results can be read and erased quickly.BRC-24, "Self-Diagnosis"
DATA MONITORInput/Output data in the ABS actuator and electric unit (control unit)
can be read.BRC-28, "Data Monitor"
CAN DIAG SUPPORT MNTRThe results of transmit/receive diagnosis of communication can be
read.LAN-44, "CAN Diagnostic
Support Monitor"
ACTIVE TESTDiagnostic Test Mode in which CONSULT-II drives some actuators
apart from the ABS actuator and electric unit (control unit) and also
shifts some parameters in a specified range.BRC-30, "Active Test"
FUNCTION TESTPerformed by CONSULT-II instead of a technician to determine
whether each system is “OK” or “NG”.—
ECU PART NUMBER ABS actuator and electric unit (control unit) part number can be read. —