battery INFINITI M35 2007 Factory Service Manual

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
BL-145
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Steering Lock UnitNIS001YF
Terminals and Reference Value for BCMNIS001YG
Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 GR PDU signal Input LOCKPress push-button ignition
switch with Intelligent Key
inside vehicle0 → Battery voltage → 0
(Battery voltage is detected when
pressing the push-button ignition
switch)
3 O Condition signal-1 OutputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
4P/BIntelligent Key unit
signalInput/
OutputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
5 B Ground — — — 0
6 B Ground — — — 0
7 LG Power source Input LOCK — Battery voltage
8 L/Y Condition signal-2 OutputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-but-
ton igni-
tion
switch
positionOperation or conditions
23 W/V Security indicator Output LOCKIntelligent Key is removed from key
slot and power supply position is in
LOCK positionBattery voltage → 0
(Every 2.4 seconds)
37 LGKey slot
(Key switch signal)Input LOCKIntelligent Key is removed from key
slot0
Intelligent Key is inserted into key slot Battery voltage
38 WIgnition power supply
(ON or START)Input ONPower supply position is in ON posi-
tionBattery voltage
39 L CAN-HInput/
Output—— —
40 P CAN-LInput/
Output—— —
42 P Power source (fuse) Input — — Battery voltage
52 B Ground — — — 0
55 WPower source (Fusil-
lade link)Input — — Battery voltage

BL-146
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for IPDM E/RNIS001YH
Te r -
minal
No.Wire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
4 W/R Starter motor power supply InputLOCK — 0
START Starter motor is activating Battery voltage
49 L CAN HInput/
Output—— —
50 P CAN LInput/
Output—— —
53 GR/R Shift position signal InputONA/T selector lever is in N or P
positionBattery voltage
LOCKA/T selector lever is in any
position other than P and N
position0

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
BL-147
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for PDUNIS001YI
Te r -
minal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 P Wake up signal InputLOCKSleep condition (30 seconds or more
after all doors are closed under the
condition that the power supply posi-
tion is in the LOCK position)Battery voltage
— Wake-up condition (Open driver door) 0
2 G Starter control signal InputON At starter motor cranking 0
— Any condition other than above Battery voltage
3GRSteering lock unit
power sourceOutputLOCKPush-button ignition switch is pressed
under the condition that Intelligent
Key is in the vehicle or Intelligent Key
is inserted0 → Battery voltage → 0
— Any condition other than above 0
6VSteering lock control
signal-1Input—Push-button ignition switch is pressed
under the condition that Intelligent
Key is in the vehicle or Intelligent Key
is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 → Bat-
tery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
7LGSteering lock control
signal-2Input—Push-button ignition switch is pressed
under the condition that Intelligent
Key is in the vehicle or Intelligent Key
is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 → Bat-
tery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
9OSteering lock feed
back signalOutput— Steering lock: Lock 0
LOCK Steering lock: Unlock 8
10 B Ground — — — 0
11 YIPDM E/R current
signalOutputSTART At starter motor cranking 5
LOCK Any condition other than above 2
12 R Feed back signal OutputLOCKSleep condition (30 seconds or more
after all doors are closed under the
condition that the power supply posi-
tion is in the LOCK position)1
—Wake-up condition (any condition
other than above)0
13 R Starter relay OutputSTART At starter motor cranking Battery voltage
— Any condition other than above 4
14 SB Power source (fuse) Input — — Battery voltage
15 LPower source (fus-
ible link)Input — — Battery voltage
17 GPower source (fus-
ible link)Input — — Battery voltage

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
BL-149
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 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-
124, "INTELLIGENT KEY BATTERY INSPECTION" .
Can not be operated with any of the Intelligent Keys>>Perform Diagnostic Procedure. Refer to BL-177,
"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-178, "
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-178, "
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-272, "
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-274, "
Check
Security Indicator Harness" .

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
BL-151
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
CAUTION:
When CAN COMM CIRCUIT [U1000] and CONTROL UNIT (CAN) [U1010] are displayed, give priority to performing trouble diag-
nosis.
DATA MONITOR
IGN POWER CIRCUIT
[B2553]It continues for 2 seconds or more that ON power sup-
ply input to Intelligent Key unit is excessively low when
the power supply position is in ON positionCheck Intelligent Key
unit ON power supply
inputBL-161
ACC POWER CIRCUIT
[B2554]It continues for 2 seconds or more that ACC power
supply input to Intelligent Key unit is excessively low
when the power supply position is in ACC or ON posi-
tionCheck Intelligent Key
unit ACC power supply
inputBL-162
STOP LAMP CIRCUIT
[B2555]5V or less is detected at both the stop lamp switch sig-
nal input circuit that is input to Intelligent Key unit and
the monitor input before stop lamp switchCheck stop lamp switchBL-165
ENG START SW
[B2556]Condition that push-button ignition switch is pushed is
detected continuously for 100 seconds or moreCheck push-button igni-
tion switchBL-166
VEHICLE SPEED
[B2557]Some differences occur on one or more vehicle speed
inputs of Intelligent Key unitCheck vehicle speed sig-
nalBL-167
SHIFT POSITION
[B2558]

There is a difference between the shift position input
via CAN communication and the P position input by
detent switch

Vehicle speed (5 km/h or more) is detected continu-
ously for 10 seconds or more even if the shift posi-
tion is detected in P position when the power supply
position is in ON positionCheck shift position inputBL-170
PDU
[B2559]Internal malfunction is detected in PDU Replace PDUBL-172
START POW SUP CIRC
[B2560]Though the engine start operation is not performed,
starter relay in IPDM E/R is ONCheck starter power sup-
plyBL-172
LOW VOLTAGE
[B2562]Battery power supply input to Intelligent Key unit (8.8V
or less) is detected continuously for 1.5 seconds or
moreCheck battery low volt-
ageBL-175
HI VOLTAGE
[B2563]Battery power supply input to Intelligent Key unit (18V
or more) is detected continuously for 90 seconds or
moreCheck for battery high
voltageBL-176
NATS MALFUNCTION
[B2590]Malfunction is detected in immobilizer systemCheck (IVIS) NATS trou-
ble diagnosis procedureBL-265
Suspect Systems
[DTC]Diagnostic item is detected when... Repair work Reference page
Monitor item Content
DR REQ SW Indicates [ON/OFF] condition of door request switch (driver side).
AS REQ SW Indicates [ON/OFF] condition of door request switch (passenger side).
BD/TR REQ SW Indicates [ON/OFF] condition of trunk opener request switch.
ON POS Indicates [ON/OFF] condition of ignition switch in ON position.
ACC POS Indicates [ON/OFF] condition of ignition switch in ACC position.
DOOR STAT SW Indicates [ON/OFF] condition of door unlock sensor.
STOP LAMP SW Indicates [ON/OFF] condition of stop lamp switch.
P RANGE SW Indicates [ON/OFF] condition of park position switch.
TR CANCEL SW* Indicates [ON/OFF] condition of trunk cancel switch.
DOOR LOCK SIG* Indicates [ON/OFF] condition of door lock signal from Intelligent Key remote controller button.
DOOR UNLOCK SIG* Indicates [ON/OFF] condition of door unlock signal from Intelligent Key remote controller button.
KEYLESS TRUNK* Indicates [ON/OFF] condition of trunk open signal from Intelligent Key remote controller button.
KEYLESS PANIC* Indicates [ON/OFF] condition of panic alarm signal from Intelligent Key remote controller button.

BL-152
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
*: Select “SELECTION FROM MENU”.
WORK SUPPORT
DOOR SW DR*Indicates [OPEN/CLOSE] condition of front door switch driver side from BCM via CAN communica-
tion line.
DOOR SW AS*Indicates [OPEN/CLOSE] condition of front door switch passenger side from BCM via CAN commu-
nication line.
DOOR SW RR* Indicates [OPEN/CLOSE] condition of rear door switch LH from BCM via CAN communication line.
DOOR SW RL* Indicates [OPEN/CLOSE] condition of rear door switch RH from BCM via CAN communication line.
DOOR BK SW* Indicates [OPEN/CLOSE] condition of back door switch from BCM via CAN communication line.
TRUNK SW*Indicates [OPEN/CLOSE] condition of trunk room lamp switch from BCM via CAN communication
line.
VEHICLE SPEED* Indicates [km/h] condition of vehicle speed.Monitor item Content
Monitor item Description
CONFIRM KEY FOB ID It can be checked whether Intelligent Key ID code is registered or not in this mode.
TAKE OUT FROM WINDOW
WARNTake away warning chime (from window) mode can be changed to operate (ON) or not operate
(OFF) with this mode. The operation mode will be changed when “CHANGE SETT” on CON-
SULT-II screen is touched.
LOW BAT OF KEY FOB WARNIntelligent Key low battery warning mode can be changed to operate (ON) or not operate (OFF)
with this mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-II
screen is touched.
ANSWER BACK FUNCTIONHazard and buzzer reminder function mode can be changed to operate (ON) or not operate
(OFF) with this mode. The operation mode will be changed when “CHANGE SETT” on CON-
SULT-II screen is touched.
SELECTIVE UNLOCK FUNC-
TIONSelective unlock function mode can be changed to operate (ON) or not operate (OFF) with this
mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-II screen is
touched.
ANTI KEY LOCK IN FUNCTIONKey reminder function mode can be changed to operate (ON) or not operate (OFF) with this
mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-II screen is
touched.
HORN WITH KEYLESS LOCKHorn reminder function mode by Intelligent Key button can be changed to operate (ON) or not
operate (OFF) with this mode. The operation mode will be changed when “CHANGE SETT” on
CONSULT-II screen is touched.
HAZARD ANSWER BACKHazard reminder function mode can be selected from the following with this mode. The operation
mode will be changed when “CHANGE SETT” on CONSULT-II screen is touched.

LOCK ONLY: Door lock operation only

UNLOCK ONLY: Door unlock operation only

LOCK/UNLOCK: Lock/Unlock operation

OFF: Non-operation
ANSWER BACK WITH I-KEY
LOCKBuzzer reminder function (lock operation) mode by door request switch (driver side and passen-
ger side) can be selected from the following with this mode. The operation mode will be changed
when “CHANGE SETT” on CONSULT-II screen is touched.

HORN CHIRP: Sound horn

BUZZER: Sound Intelligent Key warning buzzer

OFF: Non-operation
ANSWER BACK WITH I-KEY
UNLOCKBuzzer reminder function (unlock operation) mode by door request switch can be changed to
operate (ON) or not operate (OFF) with this mode.
AUTO RELOCK TIMERAuto door lock timer mode can select the following with this mode.

1 min

5 min

OFF: Non-operation

BL-154
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
OUTSIDE BUZZERThis test is able to check Intelligent Key warning buzzer operation.
Intelligent Key warning buzzer sounds when “ON” on CONSULT-II screen is touched.
INSIDE BUZZERThis test is able to check warning chime into combination meter operation.

Take away warning chime sounds when “TAKE OUT” on CONSULT-II screen is touched.

Key warning chime sounds when “KEY WARN” on CONSULT-II screen is touched.

P position warning chime sounds when “P RNG WARN” on CONSULT-II screen is touched.

ACC warning chime sounds when “ACC WARN” on CONSULT-II screen is touched.
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-155
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
DTC B2013 STRG COMM 1NIS001YN
DIAGNOSIS DESCRIPTION
B2013 steering lock communication malfunction monitors the communication condition between Intelligent
Key unit and steering lock unit. If the reply from the steering lock unit against the communication from Intelli-
gent Key unit does not come twice continuously, Intelligent Key unit judges that it is the malfunction and dis-
plays the DTC (Diagnostic Trouble Code).
TERMINALS AND REFERENCE VALUE FOR INTELLIGENT KEY UNIT
SELF-DIAGNOSTIC LOGIC
DIAGNOSTIC PROCEDURE
1. CHECK STEERING LOCK UNIT POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect steering lock unit connector.
3. Check voltage between steering lock unit connector and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
Te r m i -
nal
No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
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
DTCSelf-diagnosis
nameDTC detecting condition Possible causes
B2013 STRG COMM 1There is no replay from the steering lock
unit against the communication from Intelli-
gent Key unit.

Harness and connector
(Open or shorted in the circuit between Intelligent
Key unit and steering lock unit)

Steering lock unit power supply circuit

Steering lock unit
Terminals
Voltage (V)
(Approx.) (+)
(–)
Steering lock unit
connectorTerminal
M35 7 Ground Battery voltage
PIIB6223E

BL-156
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
2. CHECK HARNESS CONTINUITY 1
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector and steering lock unit connector.
3. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Repair or replace harness.
3. CHECK STEERING LOCK UNIT SIGNAL
1. Connect steering lock unit connector.
2. Check voltage between steering lock unit connector and ground.
OK or NG
OK >> Replace steering lock unit.
NG >> GO TO 4.
AB
Continuity
Intelligent Key
unit connectorTe r m i n a l Steering lock unit
connectorTerminal
M32 15 M35 7 Yes
A
GroundContinuity
Intelligent Key
unit connectorTerminal
M32 15 No
PIIB6224E
Te r m i n a l s
ConditionVoltage (V)
(Approx.) (+)
(–)
Steering lock
unit connectorTerminal
M35 4 GroundWhen turn igni-
tion switch to
START with
Intelligent Key in
the carBattery voltage
↓
0
↓
Battery voltage
PIIB6225E

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
BL-157
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
4. CHECK HARNESS CONTINUITY 2
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and steering lock unit connector.
3. Check continuity between Intelligent Key unit connector and steering lock unit connector.
4. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> Check the condition of harness and connector. If it is OK, check the self-diagnosis results using
CONSULT-II again.
NG >> Repair or replace harness.
DTC B2551 STEERING LOCK UNITNIS001YO
DIAGNOSIS DESCRIPTION
Though the communication between the Intelligent Key unit and the steering lock unit is normal, when the
steering lock/unlock is not normal, B2551 steering lock unit malfunction judges that it is the malfunction and
displays the DTC (Diagnostic Trouble Code)
TERMINALS AND REFERENCE VALUE
Intelligent Key Unit
AB
Continuity
Intelligent Key
unit connectorTerminal Steering lock unit
connectorTerminal
M32 16 M35 4 Yes
A
GroundContinuity
Intelligent Key unit
connectorTerminal
M32 16 No
PIIB6226E
Te r m i -
nal
No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
69 OSteering lock unit con-
dition signal-1LOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
70 L/YSteering lock unit con-
dition signal-2LOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
71 LG PDU signalLOCK Steering lock: Lock Battery voltage
ACC Steering lock: Unlocked moment 0