2011 INFINITI QX56 keyless

DIAGNOSIS SYSTEM (BCM)DLK-43
< SYSTEM DESCRIPTION >
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*: OFF is displayed when brake pedal is depressed while brake switch power supply is OFF.
ACTIVE TEST
S/L LOCK-IPDM Indicates [On/Off] condition of steering lock unit (LOCK)
S/L UNLK-IPDM Indicates [On/Off] condition of steering lock unit (UNLOCK)
S/L RELAY-REQ Indicates [On/Off] condition of steering lock relay
VEH SPEED 1 Display the vehicle speed signal received from combination meter by numerical value [Km/h]
VEH SPEED 2 Display the vehicle spee d signal received from ABS or VDC or TCM by numerical value [Km/h]
DOOR STAT-DR Indicates [LOCK/READY/UNLK] condition of unlock sensor
DOOR STAT-AS Indicates [LOCK/READY/UNLK] condition of passenger side door status
ID OK FLAG Indicates [Set/Reset] condition of key ID
PRMT ENG STRT Indicates [Set/Reset] condition of engine start possibility
PRMT RKE STRT NOTE:
This item is displayed, but cannot be monitored
TRNK/HAT MNTR NOTE:
This item is displayed, but cannot be monitored
RKE-LOCK Indicates [On/Off] condition of LOCK signal from Intelligent Key
RKE-UNLOCK Indicates [On/Off] condition of UNLOCK signal from Intelligent Key
RKE-TR/BD NOTE:
This item is displayed, but cannot be monitored
RKE-PANIC Indicates [On/Off] condition of PANIC button of Intelligent Key
RKE-MODE CHG Indicates [On/Off] condition of MODE CHANGE signal from Intelligent Key
RKE OPE COUN1 When remote keyless entry receiver receives the signal transmitted while operating on Intelli-
gent Key, the numerical value start changing
RKE OPE COUN2 NOTE:
This item is displayed, but cannot be monitored
Monitor Item Condition
Test item Description
BATTERY SAVER This test is able to check interior room lamp operation
 On: Operate
 Off: Non-operation
OUTSIDE BUZZER This test is able to check Intelligent Key warning buzzer operation
 On: Operate
 Off: Non-operation
INSIDE BUZZER This test is able to check warning chime in combination meter operation
 Take Out: Take away warning chime sounds when CONSULT-III screen is touched
 Key: Key warning chime sounds when CONSULT-III screen is touched
 Knob: OFF position warning chime sounds when CONSULT-III screen is touched
 Off: Non-operation
INDICATOR This test is able to check warning lamp operation
 KEY ON: “KEY” Warning lamp illuminates when CONSULT-III screen is touched
 KEY IND: “KEY” Warning lamp blinks when CONSULT-III screen is touched
 Off: Non-operation
INT LAMP This test is able to check interior room lamp operation
 On: Operate
 Off: Non-operation
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (AUTOMATIC BACK DOOR CONTROL UNIT)
DLK-45
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (AUTOMATIC BACK DOOR CONTROL UNIT)
CONSULT-III Function (AUTOMATIC BACK DOOR CONTROL UNIT)INFOID:0000000006225858
APPLICATION ITEM
CONSULT-III performs the following functions via CA N communication with automatic back door control unit.
DATA MONITOR
SELF-DIAG RESULT
Refer to DLK-50, "DTCIndex".
Diagnosis mode Function Description
Self Diagnostic Result Displays the diagnosis results judged by automatic back door control unit
CAN Diag Support Monitor Monitors the reception status of CAN communication viewed from automatic back door
control unit
Data Monitor The automatic back door control unit input/output signals are displayed
Ecu Identification The automatic back door control unit part number is displayed
Monitor Item Unit Description
VHCL SPEED MTR [km/h] Display the vehicle speed signal received from combination meter by nu-
merical value
VHCL SPEED ABS [km/h] Display the vehicle speed
signal received from ABS actuator and electrical
unit by numerical value
VHCL SPEED SIG [NORMAL/ER-
ROR] Indicates condition of vehicle speed from automatic back door control unit
MAIN SW [ON/OFF] Indicates condition of automatic back door main switch
AUTO BD SW [ON/OFF] Indicates condition of automatic back door switch
BK DOOR CL SW [ON/OFF] Indicates condition of automatic back door close switch
UNLOCK SEN DR [ON/OFF] Indicates condition of unlock sensor
OPEN SW [ON/OFF] Indicates condition of open switch
CLOSE SW [ON/OFF] Indicates condition of close switch
HALF LATCH SW [ON/OFF] Indicates condition of half latch switch
TOUCH SEN RH [ON/OFF/OPEN] Indicates condition of touch sensor RH
TOUCH SEN LH [ON/OFF/OPEN] Indicates condition of touch sensor LH
P RANGE IND [ON/OFF] Indicates condition of P range signal from combination meter
RKE REQ [OFF/MOVE/
REV] Indicates condition of remote keyless entry signal from BCM
IGN SW [ON/OFF] Indicates condition of IGN power supply
ENCODER A [LO/HI] Indicates condition of encoder signal from encoder A
ENCODER B [LO/HI] Indicates condition of encoder signal from encoder B
BD OPENER SW [ON/OFF] Indicates condition of back door opener switch
UNLOCK SEN BD [LOCK/
UNLOCK] NOTE:
This item is displayed, but cannot be monitored
DESTINATION [JPN/NAM] Indicates specification of destination of the automatic back door system
HAZARD [ON/OFF] Indica tes specification of hazard warning
Revision: 2010 May2011 QX56

DLK-134
< DTC/CIRCUIT DIAGNOSIS >
REMOTE KEYLESS ENTRY RECEIVER
REMOTE KEYLESS ENTRY RECEIVER
Component Function CheckINFOID:0000000006225947
1.CHECK FUNCTION
1. Select “INTELLIGE NT KEY” of “BCM” using CONSULT-III.
2. Select “RKE OPE COUN1” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Remote keyless entry receiver is OK.
NO >> Refer to DLK-134, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225948
1.CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK REMOTE K EYLESS ENTRY RECEIVER CIRCUIT 1
1. Disconnect BCM and remote keyless entry receiver connector
2. Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace harness.
Monitor item Condition
RKE OPE COUN1 Checks whether value changes when operating Intelligent Key
(+) (–) Condition Signal
(Reference value)
Remote keyless entry receiver
Connector Terminal
B21 2 Ground Waiting
Signal receiving
JMKIA3838GB
JMKIA3841GB
BCM Remote keyless entry receiver
Continuity
Connector Terminal Connector Terminal
M68 20 B21 2 Existed
Revision: 2010 May2011 QX56

REMOTE KEYLESS ENTRY RECEIVERDLK-135
< DTC/CIRCUIT DIAGNOSIS >
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3.CHECK REMOTE KEYLESS EN TRY RECEIVER CIRCUIT 2
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY
1. Disconnect remote keyless entry receiver.
2. Check signal between remote keyless entry rece iver harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> GO TO 6.
NO >> GO TO 5.
5.CHECK REMOTE KEYLESS EN TRY RECEIVER CIRCUIT 3
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
6.CHECK REMOTE KEYLESS ENTR Y RECEIVER GROUND CIRCUIT 1
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
BCM
GroundContinuity
Connector Terminal
M68 20 Not existed
(+)
(–)Signal
(Reference value)
Remote keyless entry receiver
Connector Terminal
B21 4 Ground
JMKIA3838GB
BCM Remote keyless entry receiver Continuity
Connector Terminal Connector Terminal
M68 19 B21 4 Existed
BCM GroundContinuity
Connector Terminal
M68 19 Not existed
BCM Remote keyless entry receiver Continuity
Connector Terminal Connector Terminal
M68 18 B21 1 Existed
Revision: 2010 May2011 QX56

DLK-136
< DTC/CIRCUIT DIAGNOSIS >
REMOTE KEYLESS ENTRY RECEIVER
3. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace harness.
7.CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT 2
1. Connect BCM connector.
2. Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> Replace remote keyless entry receiver.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
8.CHECK REMOTE KEYLESS ENTRY RE CEIVER RSSI OUTPUT SIGNAL
1. Connect BCM and remote keyless entry receiver connector.
2. Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Replace remote keyless entry receiver.
9.CHECK REMOTE KEYL ESS ENTRY RECEIVER RSSI CIRCUIT
1. Disconnect BCM and remote keyless entry receiver connector.
2. Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
BCM
GroundContinuity
Connector Terminal
M68 18 Not existed
BCM GroundContinuity
Connector Terminal
M68 18 Existed
(+) (–) Condition Signal
(Reference value)
Remote keyless entry receiver
Connector Terminal
B21 3 Ground Waiting 0 V
Signal receiving
JMKIA3838GB
BCM Remote keyless entry receiver
Continuity
Connector Terminal Connector Terminal
M68 22 B21 3 Existed
Revision: 2010 May2011 QX56

DLK-172
< SYMPTOM DIAGNOSIS >
DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH
DOOR DOES NOT LOCK/UNLOCK WITH DOOR REQUEST SWITCH
ALL DOOR REQUEST SWITCHES
ALL DOOR REQUEST SWITCHES : DescriptionINFOID:0000000006226005
All doors do not lock/unlock using all door request switches.
ALL DOOR REQUEST SWITCHES : Diagnosis ProcedureINFOID:0000000006226006
1.CHECK REMOTE KEYLESS ENTRY FUNCTION
Check remote keyless entry function.
Does door lock/unlock with Intelligent Key button?
YES >> GO TO 2.
NO >> Refer to DLK-134, "
ComponentFunctionCheck".
2.CHECK “LOCK/UNLOCK BY I-KEY” SETTING IN “WORK SUPPORT”
1. Select “INTELLIGE NT KEY” of “BCM” using CONSULT-III.
2. Select “LOCK/UNLOCK BY I-K EY” in “WORK SUPPORT” mode.
3. Check “LOCK/UNLOCK BY I-KEY” setting in “WORK SUPPORT”. Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III F unction (BCM - INTELLIGENT KEY)".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Set “ON” in “LOCK/UNLOCK BY I-KEY”.
3.CHECK DOOR SWITCH
Check door switch.
Refer to DLK-117, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK INSIDE KEY ANTENNA
Check inside key antenna.
 Instrument center: Refer to DLK-104, "
DTC Logic".
 Console: Refer to DLK-106, "
DTC Logic".
 Luggage room: Refer to DLK-108, "
DTC Logic".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CHECK OUTSIDE KEY ANTENNA
Check outside key antenna.
 Driver side: Refer to DLK-110, "
DTC Logic".
 Passenger side: Refer to DLK-112, "
DTC Logic".
 Back door: Refer to DLK-114, "
DTC Logic".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace the malfunctioning parts.
6.CHECK BACK DOOR SWITCH
Check back door switch.
Refer to DLK-120, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace the malfunctioning parts.
7.REPLACE BCM
Revision: 2010 May2011 QX56

DOOR DOES NOT LOCK/UNLOCK WITH INTELLIGENT KEYDLK-175
< SYMPTOM DIAGNOSIS >
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DOOR DOES NOT LOCK/UNLOCK WITH INTELLIGENT KEY
Diagnosis ProcedureINFOID:0000000006226013
1.CHECK POWER DOOR LOCK OPERATION
Check power door lock operation.
Does door lock/unlock with door lock and unlock switch?
YES >> GO TO 2.
NO >> Refer to DLK-168, "
ALL DOOR : Diagnosis Procedure".
2.CHECK REMOTE KEYLESS ENTRY RECEIVER
Check remote keyless entry receiver.
Refer to DLK-134, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CHECK INTELLIGENT KEY
Check Intelligent Key.
Refer to DLK-145, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.REPLACE BCM
 Replace BCM. Refer to BCS-81, "
Removal and Installation".
 Confirm the operation after replacement.
Is the result normal?
YES >> INSPECTION END
NO >> Check intermittent incident. Refer to GI-40, "
Intermittent Incident".
Revision: 2010 May2011 QX56

HAZARD AND HORN REMINDER DOES NOT OPERATEDLK-183
< SYMPTOM DIAGNOSIS >
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HAZARD AND HORN REMIND ER DOES NOT OPERATE
Diagnosis ProcedureINFOID:0000000006226021
1.CHECK “HAZARD ANSWER BACK” SETTING IN “WORK SUPPORT”
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2. Select “HAZARD ANSWER BACK” in “WORK SUPPORT” mode.
3. Check the “HAZARD ANSWER BACK” setting in “WORK SUPPORT”.
Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Set the “Lock Only”, “Unlock Only” or “Lock/Unlock” in “HAZARD ANSWER BACK”.
2.CHECK “HORN WITH KEYLESS LOCK” SETTING IN “WORK SUPPORT”
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2. Select “HORN WITH KEYLESS LOCK” in “WORK SUPPORT” mode.
3. Check the “HORN WITH KEYLESS LOCK” in “WORK SUPPORT”.
Refer to DLK-41, "
INTELLIGENT KEY : CONSULT-III Function (BCM - INTELLIGENT KEY)".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Set the “On” in “H ORN WITH KEYLESS LOCK”.
3.CHECK HAZARD FUNCTION
Check hazard function.
Refer to DLK-149, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK HORN FUNCTION
Check horn function.
Refer to SEC-143, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.REPLACE BCM
 Replace BCM. Refer to BCS-81, "
Removal and Installation".
 Confirm the operation after replacement.
Is the result normal?
YES >> INSPECTION END
NO >> Check intermittent incident. Refer to GI-40, "
Intermittent Incident".
Revision: 2010 May2011 QX56