Page 809 of 3383
BL-28
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
ACTIVE TEST
Test itemContent
ALL LOCK/UNLOCK This test is able to check all door lock actuators lock operation. These actuators lock when
"ON" on CONSULT
–II screen is touched.
DR UNLOCK This test is able to check front door lock assembly LH (actuator) unlock operation.These actu-
ators lock when "ON" on CONSULT
–II screen is touched.
OTHER UNLOCK This test is able to check door lock actuators [except front door lock assembly LH (actuator)]
unlock operation.These actuators unlock when "ON" on CONSULT
–II screen is touched.
Page 810 of 3383

POWER DOOR LOCK SYSTEMBL-29
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
Trouble Diagnoses Symptom ChartEIS005ZE
BCM Power Supply and Ground Circuit CheckEIS005ZF
1. CHECK FUSE AND FUSIBLE LINK
Check the following BCM fuse and fusible link.
NOTE:
Refer to BL-99, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse, refer to PG-4,
"POWER SUPPLY ROUTING CIRCUIT" .
SymptomRepair orderRefer to page
Key reminder door function does not operate
properly. 1. Door switch check
BL-31
2. Key switch (insert) checkBL-33
3. Replace BCM.BCS-20
Power door lock does not operate with door lock
and unlock switch on main power window and
door lock/unlock switch or power window and
door lock/unlock switch RH.1. Door lock/unlock switch check
BL-34
2. Replace BCM.BCS-20
Front door lock assembly LH (actuator) does not
operate.1. Front door lock assembly LH (Actuator) check
BL-38
Specific door lock actuator does not operate.1. Front door lock actuator RH check
BL-392. Rear door lock actuator RH/LH checkBL-40
Power door lock does not operate with front door
key cylinder LH operation.1. Front door lock assembly LH (key cylinder
switch) check
BL-42
2. Replace BCM.
BCS-20
Power door lock does not operate.1. BCM power supply and ground circuit check
BL-292. Door lock/unlock switch checkBL-34
Back door opener does not operate.1. Back door power supply and ground circuit
inspection
BL-1152. Door switch check
BL-31
3. Power liftgate switch system inspectionBL-116
Glass hatch lock actuator does not operate
(RF door must be unlocked for normal opera-
tion).1. Glass hatch switch check
BL-36
2. Glass hatch lock actuator checkBL-41
3. Replace BCM.BCS-20
Component PartsTerminal No. (SIGNAL) AmpereNo. Location
BCM 57 (BAT power supply) 15A22 Fuse block (J/B)
BCM 70 (BAT power supply) 50AfFuse and fusible link box
Page 811 of 3383
BL-30
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connector M20 terminals 57, 70 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
Connector Terminals
Voltage (V)
(Approx.)
(+) (-)
M20 57
Ground Battery voltage
70
LIIA1039E
Connector TerminalsContinuity
M20 67Ground Yes
LIIA1040E
Page 812 of 3383
POWER DOOR LOCK SYSTEMBL-31
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
Door Switch CheckEIS005ZG
1. CHECK DOOR SWITCHES INPUT SIGNAL
With CONSULT-II
Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR
SW") in DATA MONITOR mode with CONSULT –II.Refer to BL-27, "
DATA MONITOR" .
When doors are open:
When doors are closed:
Without CONSULT-II
Check voltage between BCM connector M18 or M19 terminals 12,
13, 43, 47, 48 and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2. DOOR SW-DR : ON
DOOR SW-AS : ON
DOOR SW-RL : ON
DOOR SW-RR : ON
BACK DOOR SW : ON
DOOR SW-DR : OFF
DOOR SW-AS : OFF
DOOR SW-RL : OFF
DOOR SW-RR : OFF
BACK DOOR SW : OFF
LIIA0665E
Connector Item
Terminals
ConditionVoltage (V)
(Approx.)
(+) ( –)
M19 Back door
latch (door
ajar switch) 43
Ground Open
↓
Closed 0
↓
Battery voltage
Front door
switch LH 47
Rear door switch LH 48
M18 Front door
switch RH 12
Rear door
switch RH 13
LIIA1041E
Page 813 of 3383

BL-32
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
2. CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between door switch connector (B) B8 (front LH), B108 (front RH), B18 (rear LH), B116 (rear RH) terminal 2 or back door latch connector (C) D503 terminal 7 and BCM connectors (A) M18, M19
terminals 12, 13, 43, 47 and 48.
4. Check continuity between door switch connector (B) B8 (front LH), B108 (front RH), B18 (rear LH), B116 (rear RH) terminal 2
or back door latch connector (C) D503 terminal 7 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR SWITCHES
FRONT AND REAR DOORS
Check continuity between front or rear door switch terminal 2 and
exposed metal of switch while pressing and releasing switch.
BACK DOOR
Check continuity between back door latch connector (A) D503 termi-
nals 7 and 8 while pressing (closing back door) and releasing (open-
ing back door) switch.
OK or NG
OK >> (Front and rear doors) Switch circuit is OK.
OK >> (Back door) GO TO 4.
NG >> Replace door switch. 2 - 12
: Continuity should exist.
2 - 13 : Continuity should exist.
2 - 47 : Continuity should exist.
2 - 48 : Continuity should exist.
7 - 43 : Continuity should exist.
2 - Ground : Continuity should not exist.
7 - Ground : Continuity should not exist.
WIIA0750E
Door switch is released : Continuity should exist.
Door switch is pushed : Continuity should not exist.
WIIA0644E
When back door is open : Continuity should exist.
When back door is closed : Continuity should not exist.
WIIA0752E
Page 814 of 3383
POWER DOOR LOCK SYSTEMBL-33
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
4. CHECK BACK DOOR SWITCH GROUND
Check continuity between back door latch connector terminal 8 and
ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> Repair or replace harness.
Key Switch (Insert) CheckEIS005ZH
1. CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-II
Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT –II. Refer to BL-27, "
DATA MONI-
TOR" .
When key is inserted to ignition key cylinder:
When key is removed from ignition key cylinder:
Without CONSULT-II
Check voltage between BCM connector M18 terminal 37 and
ground.
OK or NG
OK >> Key switch (insert) circuit is OK.
NG >> GO TO 2. 8 - Ground
: Continuity should exist.
LIIA0828E
KEY ON SW : ON
KEY ON SW : OFF
LIIA0169E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(+) ( –)
M18 37 Ground Key is inserted. Battery voltage
Key is removed. 0
LIIA0567E
Page 815 of 3383

BL-34
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
2. CHECK KEY SWITCH (INSERT)
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid.
3. Check continuity between key switch and key lock solenoid terminals 3, 4.
OK or NG
OK >> Repair or replace harness.
NG >> Replace key switch.
Door Lock/Unlock Switch CheckEIS005ZI
1. CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
With CONSULT-II
Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CON-
SULT –II. Refer to BL-27, "
DATA MONITOR"
When door lock/unlock switch is turned to LOCK:
When door lock/unlock switch is turned to UNLOCK:
Without CONSULT-II
1. Remove key from ignition key cylinder.
2. Check the signal between BCM connector M18 terminal 22 and ground with oscilloscope when door lock/ unlock switch is turned to LOCK or UNLOCK.
3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after the door lock/unlock switch is turned to LOCK or UNLOCK.
OK or NG
OK >> Door lock and unlock switch circuit is OK.
NG >> GO TO 2.
Terminals Condition Continuity
3 – 4 Key is inserted.
Yes
Key is removed. No
LIIA1044E
CDL LOCK SW:ON
CDL UNLOCK SW :ON
PIIA6538E
ConnectorTerminals
Voltage (V)
(+) ( –)
M18 22 Ground
PIIA6379EPIIA1297E
Page 816 of 3383

POWER DOOR LOCK SYSTEMBL-35
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
2. CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch RH
3. Check continuity between main power window and door lock/ unlock switch connector D8 terminal 17 and ground.
4. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 11 and ground
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK POWER WINDOW BUS CIRCUIT FOR OPEN
1. Disconnect BCM.
2. Check continuity between BCM connector M18 terminal 22 and main power window and door lock/unlock switch connector D7
terminal 14.
3. Check continuity between BCM connector M18 terminal 22 and power window and door lock/unlock switch RH connector D105
terminal 16.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness. 17 - Ground
: Continuity should exist.
LIIA0392E
11 - Ground: Continuity should exist.
LIIA1140E
22 - 14 : Continuity should exist.
LIIA0394E
22 - 16: Continuity should exist.
LIIA1271E