Page 1665 of 5598
FUEL LID LOCK ACTUATORDLK-129
< DTC/CIRCUIT DIAGNOSIS >
C
DE
F
G H
I
J
L
M A
B
DLK
N
O P
Is the inspection result normal?
YES >> Check for internal short of each door lock actuator.
NO >> Replace BCM. Refer to BCS-81, "
Removal and Installation".
(+)
(–) Condition Vo l ta g e
(Approx.)
BCM
Connector Terminal
M70 65
Ground Door lock and unlock switch Lock
12 V
66 Unlock
Revision: 2010 May2011 QX56
Page 1666 of 5598

DLK-130
< DTC/CIRCUIT DIAGNOSIS >
UNLOCK SENSOR
UNLOCK SENSOR
Component Function CheckINFOID:0000000006225941
1.CHECK FUNCTION
1. Select “INTELLIGE NT KEY” of “BCM” using CONSULT-III.
2. Select “UNLK SEN-DR” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Unlock sensor is OK.
NO >> Refer to DLK-130, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225942
1.CHECK UNLOCK SENSOR INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly (driver side) connector.
3. Check signal between front door lock assembly (d river side) harness connector and ground with oscillo-
scope.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK UNLOCK SENSOR CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector and front door lock assembly (driver side) 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".
Monitor item Condition Status
UNLK SEN -DR Driver side door Lock OFF
Unlock ON
(+)
(–)Signal
(Reference value)
Front door lock assembly (driver side)
Connector Terminal
D9 3 Ground
PKIB4960J
BCM Front door lock assembly (driver side) Continuity
Connector Terminal Connector Terminal
M68 31 D9 3 Existed
BCM GroundContinuity
Connector Terminal
M68 31 Not existed
Revision: 2010 May2011 QX56
Page 1667 of 5598

UNLOCK SENSORDLK-131
< 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 UNLOCK SENSOR 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 UNLOCK SENSOR
Refer to DLK-131, "
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:0000000006225943
1.CHECK UNLOCK SENSOR
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
3 4 Driver side door Unlock Existed
Lock Not existed
Revision: 2010 May2011 QX56
Page 1668 of 5598

DLK-132
< DTC/CIRCUIT DIAGNOSIS >
DOOR KEY CYLINDER SWITCH
DOOR KEY CYLINDER SWITCH
Component Function CheckINFOID:0000000006225944
1.CHECK FUNCTION
1. Select “DOOR LOCK” of “BCM” using CONSULT-III.
2. Select “KEY CYL LK-SW”, “KEY CY L UN-SW” in “DATA MONITOR” mode.
3. Check that the function operates normall y according to the following conditions.
Is the inspection result normal?
YES >> Door key cylinder switch is OK.
NO >> Refer to DLK-132, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006225945
1.CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front door lock assembly (driver side) connector.
3. Check voltage between front door lock assembly (driver side) harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK DOOR KEY CYLINDER SWITCH SIGNAL CIRCUIT
1. Disconnect power window main switch connector.
2. Check continuity between power window main s witch harness connector and front door lock assembly
(driver side) harness connector.
3. Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES >> Replace power window main switch. Refer to PWC-74, "Removal and Installation".
Monitor item Condition Status
KEY CYL LK-SW Driver side door key cylinder Lock ON
Neutral / Unlock OFF
KEY CYL UN-SW Unlock ON
Neutral / Lock OFF
(+)
(–)Vo l ta g e
(Approx.)
Front door lock assembly (driver side)
Connector Terminal
D9 5
Ground 5 V
6
Power window main switch Front do or lock assembly (driver side)
Continuity
Connector Terminal Connector Terminal
D5 4
D9 6
Existed
65
Power window main switch GroundContinuity
Connector Terminal
D5 4
Not existed
6
Revision: 2010 May2011 QX56
Page 1669 of 5598

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
Page 1670 of 5598

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
Page 1671 of 5598

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
Page 1672 of 5598

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