2006 INFINITI M35 brake

BL-150
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
6. CHECK INTELLIGENT KEY FUNCTION
Operate Push-button ignition switch with carrying Intelligent Key to check the power source position can be
turned with all of the Intelligent Keys.
CAUTION:
Operate Push-button ignition switch without depressing the brake pedal.
Can be operated with all of the Intelligent Keys>>GO TO 7.
Can not be operated with particular Intelligent Key>>Check the malfunctioning Intelligent Key. Refer to BL-
126, "INTELLIGENT KEY BATTERY INSPECTION" .
Can not be operated with any of the Intelligent Keys>>Perform Diagnostic Procedure. Refer to BL-179,
"Trouble Diagnosis Symptom Chart 1" .
7. CHECK TURNING TIMING OF POWER SOURCE POSITION 1
Check the power source turning delay time after Push-button ignition switch is pushed. (Approx. 3 sec)
CAUTION:
Operate Push-button ignition switch without depressing the brake pedal.
No delay time exists>>GO TO 8.
Delay time exists>>Perform Diagnostic Procedure. Refer to BL-180, "
Trouble Diagnosis Symptom Chart 2" .
8. CHECK TURNING TIMING OF POWER SOURCE POSITION 2
Check all the Intelligent Keys for power source turning delay time after Push-button ignition switch is pushed
with Intelligent Key inserted into key slot. (Approx. 3 sec)
CAUTION:
Operate Push-button ignition switch without depressing the brake pedal.
No delay time exists>>GO TO 9.
Delay time exists when operated with particular Intelligent Key.>>Perform “C/U INITIALIZATION” referring to
CONSULT-II operation manual IVIS/NVIS NATS. In case that delay time still exists after the initial-
ization, replace the Intelligent Key.
Delay time exists when operated with any of the Intelligent Keys.>>Perform Diagnostic Procedure. Refer to
BL-180, "
Trouble Diagnosis Symptom Chart 3" .
9. CHECK ENGINE START FUNCTION
Check that engine can be started with Intelligent Key carried and inserted into the key slot respectively.
Engine can be started.>>GO TO 10.
Engine cannot be started.>>Inspect Trouble Diagnosis Flow Chart for IVIS (NATS). Refer to BL-275, "
Trou-
ble Diagnoses Flow Chart for IVIS (NATS)" .
10. CHECK SECURITY INDICATOR FUNCTION
Check Security Indicator for lighting up under the two conditions below.
Security Indicator lights off when Push-button ignition switch is pushed with Intelligent Key inserted into or
pulled out of the key slot.
Security Indicator blinks when Intelligent Key is pulled out and Push-button ignition switch is in lock posi-
tion.
Lighting up condition is normal.>>Inspection END.
Lighting up condition is malfunctioning.>>Perform Security Indicator Inspection. Refer to BL-277, "
Check
Security Indicator Harness" .

BL-156
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
INDICATORThis test is able to check warning lamp operation.“KEY” Warning lamp illuminates when “KEY IND ON” on CONSULT-II screen is touched.
“KEY” Warning lamp flashes when “KEY IND FSH” on CONSULT-II screen is touched.
LCDThis test is able to check meter display information
Engine start information displays when “BRAKE/P” on CONSULT-II screen is touched.
Engine start information displays when “BRAKE/P/ON” on CONSULT-II screen is touched.
Key ID warning displays when “KEY ID NG” on CONSULT-II screen is touched.
Steering lock information displays when “STLCK RELES” on CONSULT-II screen is touched.
P position warning displays when “P RNG IND” on CONSULT-II screen is touched.
Intelligent Key insert information displays when “INSERT KEY” on CONSULT-II screen is
touched.
Intelligent Key low battery warning displays when “KEY BAT LOW” on CONSULT-II screen is
touched.
Take away from window warning displays when “TK AWAY WDW” on CONSULT-II screen is
touched.
Take away warning display when “TAKE AWAY” on CONSULT-II screen is touched.
OFF position warning display when “IGN OFF WARN” on CONSULT-II screen is touched.
P RANGEThis test is able to check A/T device power supply
A/T device power is supplied when “ON” on CONSULT-II screen is touched.
ENGINE SW ILLUMIThis test is able to check push-ignition switch illumination operation.
Push-ignition switch illumination illuminates when “ON” on CONSULT-II screen is touched.
LOCK INDCATORThis test is able to check LOCK indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
ACC INDCATORThis test is able to check ACC indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
IGNITION ON INDThis test is able to check INGITION ON indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
KEY SLOT ILLUMIThis test is able to check key slot illumination operation.
Key slot illumination flash when “ON” on CONSULT-II screen is touched. Test item Description

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
BL-167
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Revision: 2006 January2006 M35/M45
3. CHECK POWER SUPPLY CIRCUIT 2
1. Connect Intelligent Key unit and power distribution unit connector.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Check the condition of harness and conenctor. If it is
OK, check the self-diagnosis results using CONSULT-II
again.
NG >> Check the following.
10A fuse [No.6, located in the fuse block (J/B)]
Harness for open or short between fuse and Intelligent Key unit.
DTC B2555 STOP LAMP CIRCUITNIS001YS
DIAGNOSIS DESCRIPTION
B2555 stop lamp system monitors the open circuit before the stop lamp switch (models without ICC system),
which detects the brake pedal operation input to the Intelligent Key unit, or ICC brake relay (models with ICC
system). If it detects the open circuit, it judges that it is the malfunction and displays the DTC (Diagnostic Trou-
ble Code)
TERMINALS AND REFERENCE VALUE FOR INTELLIGENT KEY UNIT INPUT
CONSULT-II DATA MONITOR STANDARD VALUE
SELF-DIAGNOSTIC LOGIC
Terminals
Ignition
switch
conditionVoltage (V)
(Approx.) (+)
(–)
Intelligent Key unit
connectorTe r m i n a l
M32 30 GroundACC Battery voltage
OFF 0
PIIB6237E
Te r m i -
nal
No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
11 P Stop lamp switch —Brake pedal depressed Battery voltage
Brake pedal released Battery voltage
29 V/R Stop lamp switch —Brake pedal depressed Battery voltage
Brake pedal released 0
Monitor item Measuring condition Reference value
STOP LAMPBrake pedal is depressed ON
Brake pedal is released OFF
DTC Self-diagnosis name DTC detecting condition Possible causes
B2555 STOP LAMP CIRCUIT5V or less is detected at both the stop lamp switch signal
input circuit that is input to Intelligent Key unit and the
monitor input before stop lamp switch
10A fuse
Harness and connector
(Open in the circuit
between the units)

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-251
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Revision: 2006 January2006 M35/M45
Operation DescriptionNIS0020E
SYSTEM DIAGRAM
OPERATION WHEN INSERTING TO KEY SLOT
1. When inserting the Intelligent Key (with transponder) into the key slot, the key switch in the key slot turns
ON, and then it is detected that the Intelligent Key is inserted.
2. When pressing the push-button ignition switch at that time, BCM starts the IVIS (NATS) antenna amplifier
integrated with the key slot and starts the IVIS (NATS) ID communication with the transponder integrated
with the Intelligent Key.
3. BCM sends the IVIS (NATS) ID verification result to ECM via CAN communication and performs the ID
verification.
4. If the IVIS (NATS) ID verification result is OK, BCM sends the key ID verification OK signal to Intelligent
Key unit via CAN communication line.
5. The Intelligent Key unit sends the steering unlock signal to the steering lock unit when receiving the sig-
nal. Then, it sends each power supply request signal to PDU (Power Distribution Unit) after unlocking the
steering lock.
6. If the Intelligent Key unit judges that the engine start condition is satisfied, it sends the starter request sig-
nal via CAN communication to IPDM E/R and turns the starter motor relay ON.
7. The steering lock unit unlocks the latch when receiving the signal. PDU starts the power distribution
according to the power supply position when receiving the signal.
NOTE:
If it is not in the engine start condition*, the starter motor relay is turned OFF. Therefore, the engine cannot be
started and the power distributions of ACC, ON, and LOCK are performed only according to the push-button
ignition switch operation.
*: For the engine start condition, refer to BL-251, "
PUSH-BUTTON IGNITION SWITCH OPERATION PROCE-
DURE" .
OPERATION WHEN INTELLIGENT KEY IS CARRIED
By carrying the Intelligent Key, the engine start/stop operation can be performed only when pushing the push-
button ignition switch.
For the details of the function, refer to BL-127, "
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION" .
PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE
The power supply position changing operation can be performed with the following operation.
NOTE:
When an Intelligent Key is carried and when it is inserted to the key slot, the following operation is the
same.
When starting the engine, the Intelligent Key unit monitors the engine start conditions (brake pedal opera-
tion, A/T selector lever position, vehicle speed, and steering lock condition).
PIIB6277E

BL-252
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 January2006 M35/M45
Unless each start condition is fulfilled, the engine will not response regardless of how many times the
push-button ignition switch is pushed. At that time, illumination repeats the position in the order of LOCK
ACC ON LOCK.
*1: When the A/T selector lever position is N position, the engine start condition is different according to the vehicle speed.
At vehicle speed of 5 km/h or less, the engine can start only when the brake pedal is depressed.
At vehicle speed of 5 km/h or more, the engine can start even if the brake pedal is not depressed. (It is the same as “Engine stall
return operation while driving”.)
*2: When the A/T selector lever position is in any position other than P position and when the vehicle speed is 5 km/h or more, the
engine stop condition is different.
Press and hold the push-button ignition switch for 2 seconds or more. (When the push-button ignition switch is pressed for too short
a time, the operation may be invalid, so properly press and hold to prevent the incorrect operation.)
Press the push-button ignition switch 3 times within 1.5 seconds. (Emergency stop operation)
ECM Re-Communicating FunctionNIS0020F
Performing following procedure can automatically perform re-communication of ECM and BCM or Intelligent
Key unit, but only when the ECM has been replaced with a new one (*1).
*1: New one means a virgin ECM which has never been energized on-board.
(In this step, initialization procedure by CONSULT-II is not necessary)
NOTE:
When registering new Key IDs or replacing the ECM other than brand new, refer to CONSULT-II
Operation Manual NATS-IVIS/NVIS.
If multiple keys are attached to the key holder, separate them before work.
Distinguish keys with unregistered key ID from those with registered ID.
1. Install ECM.
2. Insert the registered Intelligent Key (*2), turn ignition switch to “ON”.
*2: To perform this step, use the key that has been used before performing ECM replacement.
3. Maintain ignition switch in “ON” position for at least 5 seconds.
4. Turn ignition switch to “OFF”.
Power supply positionEngine start/stop condition
Engine switch operation fre-
quency
Brake pedal A/T selector lever position
LOCK
ACCNot depressed
(When A/T selector lever is in
any position other than P or N,
there will be no effect even if it
is depressed.)Any position other than P or N
(When the brake pedal is not
depressed, there will be no
effect even if the A/T selector
lever is in P or N position.)1
LOCK
ACC ONNot depressed
(When A/T selector lever is in
any position other than P or N,
there will be no effect even if it
is depressed.)Any position other than P or N
(When the brake pedal is not
depressed, there will be no
effect even if the A/T selector
lever is in P or N position.)2
LOCK
ACC ON LOCKNot depressed
(When A/T selector lever is in
any position other than P or N,
there will be no effect even if it
is depressed.)Any position other than P or N
(When the brake pedal is not
depressed, there will be no
effect even if the A/T selector
lever is in P or N position.)3
LOCK
START
ACC
START
ON
START
(Engine start)Depressed P or N position (*1)1
[If the switch is pushed once,
the engine starts from any
power supply position (LOCK,
ACC, and ON)]
Engine start condition
LOCK
(Engine stop)— P position 1
Engine start condition
ACC
(Engine stop)— Any position other than P (*2) 1
Engine stall return operation
while driving—N position 1

BL-264
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 January2006 M35/M45
Terminals and Reference Value for Intelligent Key UnitNIS0020I
Te r m i -
nal
No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 SB Power source (fuse) — — Battery voltage
3YIPDM E/R current sig-
nalSTART At starter motor cranking 5
LOCK Any condition other than above 2
8WPush-button ignition
switch LOCK indicatorLOCKPower supply position is in LOCK
position0
—Power supply position is in any posi-
tion other than LOCK1.2
9LPush-button ignition
switch ACC indicatorACCPower supply position is in ACC posi-
tion0
—Power supply position is in any posi-
tion other than ACC1.2
10 VPush-button ignition
switch ON indicatorONPower supply position is in ON posi-
tion0
—Power supply position is in any posi-
tion other than ON1.2
11 P Stop lamp switch —Brake pedal depressed Battery voltage
Brake pedal released Battery voltage
12 L/RPush-button ignition
switch illumination—Push-button ignition switch illumina-
tion is turned on2.6
Push-button ignition switch illumina-
tion is turned off
(15 seconds or more after the driver
door is closed)0
13 LG/B Key slot illumination LOCKDriver door is opened under the condi-
tion that the Intelligent Key is inserted
into the key slot0
Battery voltage 0
Intelligent Key is removed from key
slot (when key slot illumination is
turned off)0
15 LGSteering lock unit
power sourceLOCK — Battery voltage
16 P/BSteering lock unit sig-
nalLOCK Steering lock: Lock Battery voltage
ACCSteering lock: Unlock
(Unlocked moment)0
17 OSteering lock unit con-
dition signal-1LOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
18 L/YSteering lock unit con-
dition signal-2LOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
19 BR/Y Key switch LOCKIntelligent Key is inserted into key slot Battery voltage
Intelligent Key is removed from key
slot0
20 B Ground — — 0

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-265
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Revision: 2006 January2006 M35/M45
27 VA/T device (Detention
switch)LOCK A/T selector lever is in P position 0
ONA/T selector lever is in any position
other than PBattery voltage
28 SB Starter relayON A/T selector lever is in N or P position Battery voltage
—Power supply position is in LOCK
position or A/T selector lever is in any
position other than N or P position0
29 V/R Stop lamp switch —Brake pedal depressed Battery voltage
Brake pedal released 0
30 L/WIgnition power supply
(ACC)ACCPower supply position is in ACC posi-
tionBattery voltage
31 GRIgnition power supply
(ON)ONPower supply position is in ON posi-
tionBattery voltage
33 O PDU signalLOCK Steering lock: Lock 0
ACC Steering lock: Unlock 8
34 R PDU feed back signal LOCK At wake-up (Open driver door) 0
35 LG Vehicle speed signal ONAt speedometer operation (vehicle
speed approx. 40 km/h)
37 P CAN L — — —
38 L CAN H — — —
39 BR/WPush-button ignition
switch—Push-button ignition switch is pressed 0
Push-button ignition switch is released Battery voltage
40 B Ground — — 0
41 Y Power source (fuse) — — Battery voltage
42 P PDU wake up signalLOCKAt sleep (30 seconds or more after all
doors are closed under the condition
that the power supply position is in the
LOCK position)Battery voltage
— At wake-up (Open driver door) 0
43 G Starter signalON At starter motor cranking 0
— Other than above Battery voltage
46 V PDU signal— Steering lock: Lock Battery voltage
LOCK Steering lock: Unlocked moment 0
56 B Ground — — 0
57 L Power source (fuse) — — Battery voltage
58 OA/T device (Detention
switch)LOCKAt sleep (30 seconds or more after all
doors are closed under the condition
that the power supply position is in the
LOCK position)0
— At wake-up (Open driver door) Battery voltage Te r m i -
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No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
PKIA1935E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-273
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Revision: 2006 January2006 M35/M45
3. CONFIRMATION BEFORE DIAGNOSIS
Before performing diagnostic procedure, grasp the operating systems with referring to the items below.
“System operation with carrying Intelligent Key”. Refer to BL-251, "OPERATION WHEN INTELLIGENT
KEY IS CARRIED" .
“System operation by using Key slot”. Refer to BL-251, "OPERATION WHEN INSERTING TO KEY SLOT"
.
>> GO TO 4.
4. CONFIRM SELF DIAGNOSIS 1
Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULT “Intelli-
gent Key”. Refer to BL-151, "
CONSULT-II Inspection Procedure" .
No malfunction>>GO TO 5.
Malfunction exist>>Repair the items displayed in “SELF DIAG RESULTS”. Refer to BL-152, "
SELF-DIAG-
NOSTIC RESULTS" .
5. CONFIRM SELF DIAGNOSIS 2
Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULTS “NATS
BCM or S/ENT” and “NATS I-KEY”. Refer toBL-268, "
CONSULT-II INSPECTION PROCEDURE" .
NOTE:
NATS program card is necessary to display “SELF DIAG RESULTS”.
No malfunction>>GO TO 6.
Malfunction exist>>Repair the items displayed in “SELF DIAG RESULTS”. Refer to BL-271, "
“NATS BCM OR
S/ENT” SELF-DIAGNOSTIC RESULTS ITEM CHART" and BL-272, "“NATS I-KEY” SELF-DIAG-
NOSTIC RESULTS ITEM CHART" .
6. CHECK INTELLIGENT KEY FUNCTION
Operate Push-button ignition switch with carrying Intelligent Key to check the power source position can be
turned with all of the Intelligent Keys.
CAUTION:
Operate Push-button ignition switch without depressing the brake pedal.
Can be operated with all of the Intelligent Keys>>GO TO 7.
Can not be operated with particular Intelligent Key>>Check the malfunctioning Intelligent Key. Refer to BL-
126, "INTELLIGENT KEY BATTERY INSPECTION" .
Can not be operated with any of the Intelligent Keys>>Perform Trouble diagnosis symptom chart 1. Refer to
BL-179, "
Trouble Diagnosis Symptom Chart 1" .
7. CHECK TURNING TIMING OF POWER SOURCE POSITION 1
Check the power source turning delay time after Push-button ignition switch is pushed. (Approx. 3 sec)
CAUTION:
Operate Push-button ignition switch without depressing the brake pedal.
No delay time exists>>GO TO 8.
Delay time exists>>Perform Trouble diagnosis symptom chart 2. Refer to BL-180, "
Trouble Diagnosis Symp-
tom Chart 2" .