2006 INFINITI M35 check engine

BL-152
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
6. Select diagnosis mode. “WORK SUPPORT”, “SELF-DIAG
RESULTS”, “CAN DIAG SUPPORT MNTR”, “DATA MONITOR”,
“ACTIVE TEST” and “ECU PART NUMBER” are available.
CONSULT-II Application ItemsNIS001YM
SELF-DIAGNOSTIC RESULTS
How to Read SELF-DIAGNOSTIC RESULTS
BCIA0031E
PIIB6280E
Suspect Systems
[DTC]Diagnostic item is detected when... Repair work Reference page
CAN COMM 1
[U1000]Malfunction is detected in CAN communicationPerform CAN communi-
cation system inspectionBL-181
CAN COMM 2
[U1010]Malfunction is detected in CAN communication caused
by Intelligent Key unit internal malfunctionReplace Intelligent Key
unit.BL-181
STRG COMM 1
[B2013]Communication malfunction with steering lock unit is
detectedCheck steering lock unitBL-157
STEERING LOCK UNIT
[B2551]Even if the communication with steering lock unit is
normally performed, the steering lock is malfunctioningReplace steering lock
unitBL-159
INTELLIGENT KEY
[B2552]Internal malfunction is detected in Intelligent Key unitReplace Intelligent Key
unit.BL-163
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-163
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-164
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-167

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
CAUTION:
When CAN COMM 1 [U1000] and CAN COMM 2 [U1010] are displayed, give priority to performing trouble diagnosis.
DATA MONITOR
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-168
VEHICLE SPEED
[B2557]Some differences occur on one or more vehicle speed
inputs of Intelligent Key unitCheck vehicle speed sig-
nalBL-169
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-172
PDU
[B2559]Internal malfunction is detected in PDU Replace PDUBL-174
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-174
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-177
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-178
NATS MALFUNCTION
[B2590]Malfunction is detected in immobilizer systemCheck (IVIS) NATS trou-
ble diagnosis procedureBL-268
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.
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.

BL-154
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
*: Select “SELECTION FROM MENU”.
WORK SUPPORT
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
PANIC ALARM DELAYPanic alarm button's pressing time on Intelligent Key remote control button can be selected from
the following with this mode. The operation mode will be changed when “CHANGE SETT” on
CONSULT-II screen is touched.
0.5 sec
1.5 sec
OFF: Non-operation
TRUNK/GLASS HATCH OPENBuzzer reminder function mode by trunk opener request switch 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.

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
ACTIVE TEST
TRUNK OPEN DELAYTrunk button's pressing time on Intelligent Key button can be selected from the following with this
mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-II screen is
touched.0.5 sec
1.5 sec
OFF: Non-operation
P/W DOWN DELAYUnlock button's pressing time on Intelligent Key button can be selected from the following with
this mode. The operation mode will be changed when “CHANGE SETT” on CONSULT-II screen
is touched.
3 sec
5 sec
OFF: Non-operation
ENGINE START BY I-KEYEngine start 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.
LOCK/UNLOCK BY I-KEYDoor lock/unlock function by door request switch (driver side, passenger side and trunk) 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. Monitor item Description
Test item Description
DOOR LOCK/UNLOCKThis test is able to check door lock/unlock operation.
The all door lock actuators are locked when “LOCK” on CONSULT-II screen is touched.
The all door lock actuators are unlocked when “ALL UNLK” on CONSULT-II screen is touched.
The door lock actuator (driver side) is unlocked when “DR UNLK” on CONSULT-II screen is
touched.
The door lock actuator (passenger side) is unlocked when “AS UNLK” on CONSULT- II screen
is touched.
The trunk lid opener actuator is open when “TRUNK OPEN” on CONSULT- II screen is
touched.
ANTENNAThis test is able to check Intelligent Key antenna operation.
When the following conditions are met, hazard warning lamps flash.
Inside key antenna (Instrument center) detects Intelligent Key, when “ROOM ANT1” on CON-
SULT-II screen is touched.
Inside key antenna (Center console) detects Intelligent Key, when “ROOM ANT2” on CON-
SULT-II screen is touched.
Inside key antenna (rear seat) detects Intelligent Key, when “ROOM ANT3” on CONSULT-II
screen is touched.
Inside key antenna (Trunk room) detects Intelligent Key, when “LAG ANT1” on CONSULT-II
screen is touched.
Outside key antenna (Driver side) detects Intelligent Key, when “DRIVER ANT” on CONSULT-II
screen is touched.
Outside key antenna (Passenger side) detects Intelligent Key, when “ASSIST ANT” on CON-
SULT-II screen is touched.
Outside key antenna (Trunk room) detects Intelligent Key, when “BD/TR ANT” on CONSULT-II
screen is touched.
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.

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
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Revision: 2006 January2006 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-158
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 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
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Revision: 2006 January2006 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
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
71 LG PDU signalLOCK Steering lock: Lock Battery voltage
ACC Steering lock: Unlocked moment 0