2011 INFINITI QX56 ground

DOOR KEY CYLINDER SWITCHDLK-133
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
NO >> Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly (driver side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK DOOR KEY CYLINDER SWITCH
Refer to DLK-133, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace front door lock assembly (driver side).
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225946
1.CHECK DOOR KEY CYLINDER SWITCH
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly (driver side) connector.
3. Check continuity between front door lock assembly (driver side) terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace front door lock assembly (driver side).
Front door lock assembly (driver side)
GroundContinuity
Connector Terminal
D9 4 Existed
Front door lock assembly (driver side) Condition Continuity
Te r m i n a l
5 4 Driver side door key cylinder Unlock Existed
Neutral / Lock Not existed
6 Lock Existed
Neutral / Unlock Not existed
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 >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
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

DOOR REQUEST SWITCHDLK-137
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
DOOR REQUEST SWITCH
Component Function CheckINFOID:0000000006225949
1.CHECK FUNCTION
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2. Select “REQ SW-DR”, “REQ SW-AS” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Front door request switch is OK.
NO >> Refer to DLK-137, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225950
1.CHECK DOOR REQUEST SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect malfunctioning front door request switch connector.
3. Check voltage between malfunctioning front door request switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK DOOR REQUEST SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between malfunctioning front door request switch harness connector and BCM harness
connector.
3. Check continuity between malfunctioning front door request switch harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
Monitor item Condition Status
REQ SW -DR Driver side door request switchPressed ON
Released OFF
REQ SW -AS Passenger side door request switch Pressed ON
Released OFF
(+)
(–)Vo l ta g e
(Approx.)
Front door request switch
Connector Terminal
Driver side D11 1 Ground 12 V
Passenger side D31
Front door request switch BCM Continuity
Connector Terminal Connector Terminal
Driver side D11 1M7175
Existed
Passenger side D31 76
Front door request switch GroundContinuity
Connector Terminal
Driver side D11 1 Not existed
Passenger side D31
Revision: 2010 May2011 QX56

DLK-138
< DTC/CIRCUIT DIAGNOSIS >
DOOR REQUEST SWITCH
3.CHECK DOOR REQUEST SWITCH GROUND CIRCUIT
Check continuity between malfunctioning front door request switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK DOOR REQUEST SWITCH
Refer to DLK-138, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace malfunctioning front door request switch.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225951
1.CHECK DOOR REQUEST SWITCH
1. Turn ignition switch OFF.
2. Disconnect malfunctioning front door request switch connector.
3. Check continuity between malfunctioning front door request switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace malfunctioning front door request switch.
Front door request switch
GroundContinuity
Connector Terminal
Driver side D11 2 Existed
Passenger side D31
Front door request switch Condition Continuity
Te r m i n a l
1 2 Door request switch Pressed Existed
Released Not existed
Revision: 2010 May2011 QX56

BACK DOOR REQUEST SWITCHDLK-139
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
BACK DOOR REQUEST SWITCH
Component Function CheckINFOID:0000000006225952
1.CHECK FUNCTION
1. Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.
2. Select “REQ SW-BD/TR” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Back door request switch is OK.
NO >> Refer to DLK-139, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225953
1.CHECK BACK DOOR REQUEST SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect back door opener switch assembly connector.
3. Check voltage between back door opener switch assembly harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK BACK DOOR REQUEST SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and back door opener switch assembly harness con-
nector.
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.
3.CHECK BACK DOOR REQUEST SWITCH GROUND CIRCUIT
Check continuity between back door opener s witch assembly harness connector and ground.
Monitor item Condition Status
REQ SW-BD/TR Back door request switch Pressed On
Released Off
(+)
(–)Vol tag e
(Approx.)
Back door opener switch assembly
Connector Terminal D154 4 Ground 12 V
BCM Back door opener switch assembly Continuity
Connector Terminal Connector Terminal
M69 51 D154 4 Existed
BCM GroundContinuity
Connector Terminal
M69 51 Not existed
Revision: 2010 May2011 QX56

DLK-140
< DTC/CIRCUIT DIAGNOSIS >
BACK DOOR REQUEST SWITCH
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK BACK DOOR REQUEST SWITCH
Refer to DLK-140, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace back door opener switch assembly.
5.CHECK INTERMITTENT INCIDENT
Refer to GI-40, "
Intermittent Incident".
>> INSPECTION END
Component InspectionINFOID:0000000006225954
1.CHECK BACK DOOR REQUEST SWITCH
1. Turn ignition switch OFF.
2. Disconnect back door opener switch assembly connector.
3. Check continuity between back door opener switch assembly terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace back door opener switch assembly.
Back door opener switch assembly
GroundContinuity
Connector Terminal
D154 3 Existed
Back door opener switch assembly Condition Continuity
Te r m i n a l
3 4 Back door request switch Pressed Existed
Released Not existed
Revision: 2010 May2011 QX56