SYSTEM (INTELLIGENT KEY SYSTEM)DLK-37
< SYSTEM DESCRIPTION >
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TRUNK LID OPENER SYSTEM : System DiagramINFOID:0000000009461789
TRUNK LID OPENER SYSTEM : System DescriptionINFOID:0000000009461790
Only when pressing the request switch, it is possibl e to open the trunk by carrying the Intelligent Key.
• The Intelligent Key system is a system that makes it possible to open the trunk (trunk open function) by car-
rying the Intelligent Key which operates based on the resu lts of electronic ID verification using two-way com-
munications between the Intelli gent Key and the vehicle (BCM).
CAUTION:
The driver should always carry the Intelligent Key
• If an action that does not meet the operating conditions of the Intelligent Key system is taken, the buzzer
goes off to inform the driver (warning chime functions).
• When trunk is opened with request switch or remote controller button operation, the hazard lamps flash and the Intelligent Key warning buzzer or horns sound (hazard and buzzer/horn reminder function).
• The settings for each functi on can be changed with the CONSULT.
• If an Intelligent Key is lost, a new Intelligent Key can be registered. A maximum of 4 Intelligent Keys can be registered.
• It is possible to perform a diagnosis on the system and register an Intelligent Key with the CONSULT.
OPERATION DESCRIPTION/TRUNK OPEN
• When the BCM detects that trunk open request switch is pressed, it starts the outside key antenna (trunk
room) and inside key antenna corresponding to the pressed trunk open request switch and transmits the
request signal to the Intelligent Key. And then, c heck that the Intelligent Key is near the trunk.
• If the Intelligent Key is within the outside key ant enna (rear bumper) detection area, it receives the request
signal and transmits the key ID signal to the BCM via remote keyless entry receiver.
• BCM receives the key ID signal and compares it with the registered key ID.
• BCM transmits the trunk open request signal and sounds Intelligent Key warning buzzer 4 consecutive
times.
• When BCM receives the trunk open request signal, it operates the trunk release solenoid and opens the trunk.
OPERATION CONDITION
If the following conditions are not satisfied, trunk open operation is not performed even if the request switch is
operated.
*: Even with a registered Intelligent Key remaining inside the vehicle, door locks can be unlocked from outside of the vehicle with a spare
Intelligent Key as long as key IDs are different.
OUTSIDE KEY ANTENNA DETECTION AREA
ALKIA0181GB
Each request switch operation Operation condition
Trunk open operation • Intelligent Key is within outside key antenna (rear bumper) detection area*
• Trunk cancel switch is ON
• Key reminder functions operate (trunk)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DLK-42
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)INFOID:0000000009952500
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and a no-start condition.
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
Ecu Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Su pport Mntr
Door lock DOOR LOCK ××××
Rear window defogger REAR DEFOGGER ×××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ×××
Exterior lamp HEADLAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITIONER ×
Intelligent Key system INTELLIGENT KEY ××××
Combination switch COMB SW ×
BCM BCM × × ×××
Immobilizer IMMU ×××
Interior room lamp battery saver BATTERY SAVER ××
Trunk open TRUNK ×
Vehicle security system THEFT ALM ×××
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DIAGNOSIS SYSTEM (BCM)DLK-45
< SYSTEM DESCRIPTION >
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ACTIVE TEST
VEH SPEED 2 [mph/km/h] ×Indicates condition of vehicle speed signal received from combination
meter on CAN communication line.
DOOR STAT -DR [LOCK/READY/UNLK] ×Indicates condition of driver side door status.
DOOR STAT -AS [LOCK/READY/UNLK] ×Indicates condition of passenger side door status.
DOOR STAT -RR [LOCK/READY/UNLK] ×Indicates condition of rear right side door status.
DOOR STAT -RL [LOCK/READY/UNLK] ×Indicates condition of rear left side door status.
ID OK FLAG [Set/Reset] Indicates condition of Intelligent Key ID.
PRMT ENG STRT [Set/Reset] Indicates condition of engine start possibility.
PRMT RKE STRT [Set/Reset] Indicates condition of engine start possibility from Intelligent Key.
I-KEY OK FLAG [Key ON/Key OFF] ×Indicates condition of Intelligent Key OK flag.
PRBT ENG STRT [Set/Reset] Indicates condition of engine start prohibit.
ID AUTHENT CANCEL TIMER [STOP] Indicates condition of Intelligent Key ID authentication.
ACC BATTERY SAVER [STOP] Indicate s condition of battery saver.
CRNK PRBT TMR [On/Off] In dicates condition of crank prohibit timer.
AUT CRNK TMR [On/Off] Indicates condition of automatic engine crank timer from Intelligent Key.
CRNK PRBT TME [sec] I ndicates condition of engine crank prohibit time.
AUTO CRNK TME [sec] Indicates co ndition of automatic engine crank time from Intelligent Key.
CRANKING TME [sec] Indicates condition of engine cranking time from Intelligent Key.
DETE SW PWR [On/Off] Indicates condition of detent switch voltage.
ACC RLY -REQ [On/Off] Indicates condition of accessory relay control request.
RKE OPE COUN1 [0-19] ×When remote keyless entry receiver receives the signal transmitted while
operating on Intelligent Key, the numerical value start changing.
RKE OPE COUN2 [0-19] ×When remote keyless entry receiver receives the signal transmitted while
operating on Intelligent Key, the numerical value start changing.
TRNK/HAT MNTR [On/Off] Indicates condition of trunk room lamp switch.
RKE-LOCK [On/Off] Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off] Indicates condition of unlock signal from Intelligent Key.
RKE-TR/BD [On/Off] Indicates condition of trunk open signal from Intelligent Key.
RKE-PANIC [On/Off] Indicates condition of panic signal from Intelligent Key.
RKE-MODE CHG [On/Off] Indicates condition of mode change signal from Intelligent Key. Monitor Item [Unit] Main Description
Test Item Description
INTELLIGENT KEY LINK (CAN) This test is able to check Intelligent Key iden
tification number [Off/ID No1/ID N02/ID No3/ID
No4/ID No5].
INT LAMP This test is able to check interior room lamp operation [On/Off].
FLASHER This test is able to check hazard lamp operation [LH/RH/Off].
HORN This test is able to check horn operation [On].
BATTERY SAVER This test is able to check battery saver operation [On/Off].
TRUNK/BACK DOOR This test is able to check trunk actuator operation [Open].
OUTSIDE BUZZER This test is able to check In telligent Key warning buzzer operation [On/Off].
INSIDE BUZZER This test is able to check combination meter warning chime operation [Take Out/Knob/Key/
Off].
INDICATOR This test is able to check combination meter warning lamp operation [KEY ON/KEY IND/Off].
IGN CONT2 This test is able to check ignition relay-2 control operation [On/Off].
ENGINE SW ILLUMI This test is able to check push-bu tton ignition switch START indicator operation [On/Off].
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DLK-46
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
WORK SUPPORT
PUSH SWITCH INDICATOR This test is able to check push-button ignition switch indicator operation [On/Off].
ACC CONT This test is able to check accessory relay control operation [On/Off].
IGN CONT1 This test is able to check ignition relay-1 control operation [On/Off].
ST CONT LOW This test is able to check starter control relay operation [On/Off].
IGNITION RELAY This test is able to ignition relay operation [On/Off].
REVERSE LAMP TEST This test is able to check reverse lamp illumination operation [On/Off].
TRUNK/LUGGAGE LAMP TEST This test is able to check cargo lamp illumination operation [On/Off].
KEYFOB PW TEST This test is able to check power wind ow operation using the Intelligent Key [Off/DOWN/UP].
SHIFTLOCK SOLENOID TEST This test is able to check shift lock solenoid operation [On/Off]. Test Item Description
Support Item Setting Description
IGN/ACC BATTERY SAVER On* Battery saver function ON.
Off Battery saver function OFF.
REMOTE ENGINE STARTER On* Remote engine start function ON.
Off Remote engine start function OFF.
ANSWERBACK I-KEY LOCK UNLOCK BUZZER Buzzer reminder function by door lock/unlock request switch ON.
HORN Horn chirp reminder function by door lock request switch ON.
Off* No reminder function by door lock/unlock request switch.
INVALID This mode is not used.
ANSWERBACK KEYLESS LOCK UN-
LOCK On
Buzzer or horn chirp reminder when doors are locked/unlocked with
Intelligent Key.
Off* No buzzer or horn chirp reminder when doors are locked/unlocked
with Intelligent Key.
ANSWER BACK On* Horn chirp reminder when doors are locked with Intelligent Key.
Off No horn chirp reminder when doors are locked with Intelligent Key.
RETRACTABLE MIRROR SET On Retractable mirror set ON.
Off* Retractable mirror set OFF.
CONFIRM KEY FOB ID — Intelligent Key ID code can check.
LOCK/UNLOCK BY I-KEY On* Door lock/unlock function from Intelligent Key ON.
Off Door lock/unlock function from Intelligent Key OFF.
ENGINE START BY I-KEY On* Engine start function from Intelligent Key ON.
Off Engine start function from Intelligent Key OFF.
TRUNK/GLASS HATCH OPEN On* Buzzer reminder function by trunk opener request switch ON.
Off Buzzer reminder function by trunk opener request switch OFF.
INTELLIGENT KEY LINK SET On Intelligent Key link set ON.
Off* Intelligent Key link set OFF.
SHORT CRANKING OUTPUT Start70 msec
Starter motor operation duration times.
100 msec
200 msec
End —
INSIDE ANT DIAGNOSIS — This function allows inside key antenna self-diagnosis.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
B261B REMOTE ENGINE STARTDLK-87
< DTC/CIRCUIT DIAGNOSIS >
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B261B REMOTE ENGINE START
DTC LogicINFOID:0000000009461812
DTC DETECTION LOGIC
NOTE:
• If DTC B261B is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
BCS-68, "DTC Logic"
.
• If DTC B261B is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
BCS-69, "DTC Logic"
.
Diagnosis ProcedureINFOID:0000000009461813
1. CHECK ECM IGNITION, POWER AND GROUND CIRCUITS
Check ECM ignition power and ground circuits. Refer to EC-203, "Diagnosis Procedure"
(with QR25DE) or
EC-709, "Diagnosis Procedure"
(with VQ35DE) .
Is the inspection result normal?
YES >> Replace ECM. Refer to EC-540, "Removal and Installation" (with QR25DE) or EC-997, "Removal
and Installation" (with VQ35DE). GO TO 2.
NO >> Repair or replace harness or connectors.
2. INSPECTION
1. Turn ignition switch ON.
2. Select "Self-diagnostic result" mode with CONSULT.
3. Touch "ERASE".
4. Perform vehicle remote start operation.
Does DTC B261B return?
YES >> Replace BCM. Refer to BCS-80, "Removal and Installation".
NO >> Inspection End.
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
B261B BCM The BCM has requested ignition OFF but ECM
keeps the engine running for more than 10 seconds
after the OFF request was made. •ECM
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DLK-152
< SYMPTOM DIAGNOSIS >
INTELLIGENT KEY SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
INTELLIGENT KEY SYSTEM SYMPTOMS
Symptom TableINFOID:0000000009461907
ALL FUNCTIONS OF INTELLIGENT KEY SYSTEM DO NOT OPERATE
NOTE:
• Before performing the diagnosis in the following table, check “WORK FLOW”. Refer to DLK-81, "Work Flow"
.
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following symptoms are detected, check syst ems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• “ENGINE START BY I-KEY” and “LOCK/UNLOCK BY I-KEY” are ON when setting on CONSULT.
• All doors are closed.
Symptom Diagnosis/service procedure Reference page
All functions of Intelligent Key system do not operate. 1. Check BCM power supply and ground circuit.
BCS-74
2. Check Intelligent Key function and battery inspection.DLK-146
3. Check remote keyless entry receiver.DLK-144
4. Check Intermittent Incident. GI-43
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DLK-154
< SYMPTOM DIAGNOSIS >
DOOR LOCK FUNCTION SYMPTOMS
Conditions of Vehicle (Operating Conditions)
• “LOCK/UNLOCK BY I-KEY” is ON when setting on CONSULT.
• Intelligent Key is out of key slot.
• All doors are closed.
INTELLIGENT KEY
INTELLIGENT KEY : Symptom TableINFOID:0000000009461910
REMOTE KEYLESS ENTRY FUNCTION MALFUNCTION
NOTE:
• Before performing the diagnosis in the following table, check “WORK FLOW”. Refer to DLK-81, "Work Flow"
.
• Check that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis, and
check each symptom.
• If the following symptoms are detected, check syst ems shown in the “Diagnosis/service procedure” column
in this order.
Conditions of Vehicle (Operating Conditions)
• Intelligent Key is out of key slot.
• Ignition switch is in OFF or ACC position.
• All doors are closed.
• Retained power operation does not operate.
Symptom Diagnosis/service procedure Reference
page
Door lock/unlock system does not operate by
door request switch. 1. Check BCM power supply and ground circuit.
BCS-74
2. Check door switch.DLK-100
3. Check Intermittent Incident. GI-43
Door lock/unlock system does not operate by
request switch (driver side). 1. Check door request
switch (driver side). DLK-1292. Check outside key antenna (driver side). D L K - 111
3. Check Intermittent Incident. GI-43
Door lock/unlock system does not operate by
request switch (passenger side). 1. Check door request switch (passenger side).
DLK-1292. Check outside key antenna (passenger side).DLK-109
3. Check Intermittent Incident. GI-43
Selective unlock function does not operate by
door request switch (dri ver side) (other door
lock function operate). 1.
Check “DOOR LOCK-UNLOCK
SET” setting in “WORK
SUPPORT”. DLK-43
2.
Check selective unlock function with a remote controller
or door key cylinder. DLK-103
3. Check Intermittent Incident.
GI-43
Selective unlock function does not operate by
door request switch (passenger side) (other
door lock functions operate). 1.
Check “DOOR LOCK-UNLOCK
SET” setting in “WORK
SUPPORT”. DLK-43
2. Check Intermittent Incident.
GI-43
Auto lock function does not operate.1.
Check “AUTO LOCK SET” setting in “WORK SUP-
PORT”. DLK-432. Check door switch.
DLK-100
3. Check Intermittent Incident. GI-43
Symptom Diagnosis/service procedure Reference
page
All of the remote keyless entry functions do
not operate. 1. Check Intelligent Key battery inspection.
DLK-146
2. Check Intermittent Incident. GI-43
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
DIAGNOSIS SYSTEM (BCM)EXL-17
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)INFOID:0000000009956424
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentiall y causing a discharged battery and a no-start condition.
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
Ecu Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
Ecu Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN Diag Su pport Mntr
Door lock DOOR LOCK ××××
Rear window defogger REAR DEFOGGER ×××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ×××
Exterior lamp HEADLAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITIONER ×
Intelligent Key system INTELLIGENT KEY ××××
Combination switch COMB SW ×
BCM BCM × × ×××
Immobilizer IMMU ×××
Interior room lamp battery saver BATTERY SAVER ××
Trunk open TRUNK ×
Vehicle security system THEFT ALM ×××
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM