2007 INFINITI QX56 air condition

BL-32
< SERVICE INFORMATION >
POWER DOOR LOCK SYSTEM
Front Door Lock Assembly LH (Actuator) Check
INFOID:0000000003532908
1.CHECK DOOR LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M20 terminals 59, 65
and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace BCM. Refer to BCS-24, "
BCM".
2.CHECK DOOR LOCK ACTUATOR HARNESS
1. Disconnect BCM and front door lock assembly LH (actuator).
2. Check continuity between BCM connector M20 terminals 59, 65
and front door lock assembly LH (actuator) connector D14 termi-
nals 2, 3.
3. Check continuity between BCM connector M20 terminals 59, 65
and ground.
OK or NG
OK >> Replace front door lock assembly LH (actuator). Refer to BL-110.
NG >> Repair or replace harness.
Front Door Lock Actuator RH CheckINFOID:0000000003532909
1.CHECK FRONT DOOR LOCK ACTUATOR RH SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M20 terminals 65, 66
and ground.
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M2059
GroundDriver door lock/unlock
switch is turned to UN-
LOCK0 → Battery voltage
65Driver door lock/unlock
switch is turned to LOCK0 → Battery voltage
LIIA1046E
Connector Terminals Connector Terminals Continuity
M2059
D142Yes
65 3 Yes
Connector Terminals Continuity
M2059
GroundNo
65 No
LIIA1574E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M2065
GroundDoor lock/unlock switch is
turned to LOCK0 → Battery voltage
for 300 ms
66Door lock/unlock switch is
turned to UNLOCK0 → Battery voltage
for 300 ms
LIIA1048E

POWER DOOR LOCK SYSTEM
BL-33
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
OK or NG
OK >> GO TO 2.
NG >> Replace BCM. Refer to BCS-24, "
BCM".
2.CHECK FRONT DOOR LOCK ACTUATOR RH HARNESS
1. Disconnect BCM and front door lock actuator RH.
2. Check continuity between BCM connector M20 terminals 65, 66
and front door lock actuator RH D114 terminals 2, 3.
3. Check continuity between BCM connector M20 terminals 65, 66
and ground.
OK or NG
OK >> Replace front door lock actuator RH. Refer to BL-110.
NG >> Repair or replace harness.
Rear Door Lock Actuator RH/LH CheckINFOID:0000000003532910
1.CHECK DOOR LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M20 terminals 65, 66
and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace BCM. Refer to BCS-24, "
BCM".
2.CHECK REAR DOOR LOCK ACTUATOR LH OR RH HARNESS
1. Disconnect BCM and each door lock actuator.
Terminals Continuity
65 3 Yes
66 2 Yes
Terminals Continuity
65
GroundNo
66 No
LIIA1479E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M2065
GroundDoor lock/unlock switch
is turned to LOCK0 → Battery voltage
for 300 ms
66Door lock/unlock switch
is turned to UNLOCK0 → Battery voltage
for 300 ms
LIIA1048E

BL-34
< SERVICE INFORMATION >
POWER DOOR LOCK SYSTEM
2. Check continuity between BCM connector M20 terminals 65, 66
and rear door lock actuator RH/LH connectors terminals 2, 3.
3. Check continuity between BCM connector M20 terminals 65, 66
and ground.
OK or NG
OK >> Replace door lock actuator. Refer to BL-113.
NG >> Repair or replace harness.
Glass Hatch Lock Actuator CheckINFOID:0000000003532911
1.CHECK GLASS HATCH LOCK ACTUATOR SIGNAL
1. Turn ignition switch OFF.
2. Check voltage between BCM connector M19 terminal 53 and
ground.
OK or NG
OK >> GO TO 2.
NG >> Replace BCM. Refer to BCS-24, "
BCM".
2.CHECK GLASS HATCH LOCK ACTUATOR HARNESS
1. Disconnect BCM and glass hatch lock actuator.
2. Check continuity between BCM connector M19 terminal 53 and
glass hatch lock actuator connector D711 terminal 3.
3. Check continuity between BCM connector M19 terminals 53 and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK GLASS HATCH LOCK ACTUATOR GROUND CIRCUIT
1. Disconnect glass hatch lock actuator.
Terminals Continuity
65 3 Yes
66 2 Yes
Terminals Continuity
65
GroundNo
66 No
LIIA1480E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M19 53 GroundGlass hatch switch is
turned to depressed0 → Battery voltage
for 300 ms
LIIA1938E
Terminals Continuity
53 3 Yes
Terminals Continuity
53 Ground No
LIIA1939E

POWER DOOR LOCK SYSTEM
BL-35
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
2. Check continuity between glass hatch lock actuator connector
D711 terminal 1 and ground.
OK or NG
OK >> Replace glass hatch lock actuator. Refer to BL-114.
NG >> Repair or replace harness.
Front Door Lock Assembly LH (Key Cylinder Switch) CheckINFOID:0000000003532912
1.CHECK DOOR KEY CYLINDER SWITCH LH
With CONSULT-II
Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in
DATA MONITOR mode with CONSULT–II. Refer to BL-24, "
CONSULT-II Function (BCM)".
• When key inserted in front key cylinder is turned to LOCK:
• When key inserted in front key cylinder is turned to UNLOCK:
Without CONSULT-II
Check voltage between main power window and door lock/unlock
switch connector D7 terminals 4, 6 and ground.
OK or NG
OK >> Front door lock assembly LH (key cylinder switch) signal is OK.
NG >> GO TO 2.
2.CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS
Terminals Continuity
1 Ground Yes
LIIA1940E
KEY CYL LK-SW : ON
KEY CYL UN-SW : ON
LIIA0188E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
D74
GroundNeutral/Unlock 5
Lock 0
6Neutral/Lock 5
Unlock 0
LIIA0566E

BL-36
< SERVICE INFORMATION >
POWER DOOR LOCK SYSTEM
Check continuity between front door lock assembly LH (key cylinder
switch) connector (A) D14 terminal 5 and body ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK DOOR KEY CYLINDER SWITCH LH
Check continuity between front door lock assembly LH (key cylinder
switch) terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace front door lock assembly LH (key cylinder switch). Refer to BL-110
.
4.CHECK DOOR KEY CYLINDER HARNESS
Check continuity between main power window and door lock/unlock
switch connector (A) D7 terminals 4, 6 and front door lock assembly
LH (key cylinder switch) connector (B) D14 terminals 1, 6 and body
ground.
OK or NG
OK >> Replace main power window and door lock/unlock switch.
NG >> Repair or replace harness.
Connector Terminals Continuity
D14 5 – Ground Yes
WIIA1067E
Terminals Condition Continuity
1 – 5 Key is turned to UNLOCK or neutral. No
Key is turned to LOCK. Yes
5 – 6Key is turned to LOCK or neutral. No
Key is turned to UNLOCK. Yes
LIIA1573E
Connector Terminals ConnectorTe r m i n a l s
(wire color)Continuity
A: Main
power win-
dow and
door lock/
unlock
switch4B: Front
door lock
assembly
LH (key
cylinder
switch)1Yes
66Yes
4, 6 Ground No
WIIA1068E

REMOTE KEYLESS ENTRY SYSTEM
BL-49
< SERVICE INFORMATION >
C
D
E
F
G
H
J
K
L
MA
B
BL
N
O
P
Key Switch (Insert) CheckINFOID:0000000003532926
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-45, "
CONSULT-II
Application Item" .
• 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.
2.CHECK KEY SWITCH (INSERT)
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid connector.
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 Switch CheckINFOID:0000000003532927
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-45, "
CONSULT-II Application Item".
• When doors are open:KEY ON SW : ON
KEY ON SW : OFF
LIIA0169E
ConnectorTe r m i n a l s
Condition Voltage (V)
(+) (–)
M18 37 GroundKey is inserted. Battery voltage
Key is removed. 0
LIIA0567E
Terminals Condition Continuity
3 – 4Key is inserted. Yes
Key is removed. No
LIIA1044E

BL-52
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
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.
Keyfob Battery and Function CheckINFOID:0000000003532928
1.CHECK KEYFOB BATTERY
Remove battery and measure voltage across battery positive and negative terminals, (+) and (−).
NOTE:
Keyfob does not function if battery is not set correctly.
OK or NG
OK >> GO TO 2.
NG >> Replace battery.
2.CHECK KEYFOB FUNCTION
With CONSULT-II
Check keyfob function in “DATA MONITOR” mode with CONSULT-II.
When pushing each button of keyfob, the corresponding monitor item should be
turned as follows.
Without CONSULT-II
Check keyfob function using Remote Keyless Entry Tester J-43241.
OK or NG
OK >> WITH CONSULT-II: Keyfob, remote keyless entry receiver and wiring harness between BCM and
remote keyless entry receiver are OK. Replace BCM. Refer to BCS-24, "
BCM" .
OK >> WITHOUT CONSULT-II: Keyfob is OK. Further inspection is necessary. Refer to BL-47, "
Trouble
Diagnosis" .
NG >> WITH CONSULT-II: Further inspection is necessary. Refer to BL-47, "
Trouble Diagnosis".
NG >> WITHOUT CONSULT-II: Replace keyfob. Refer to BL-56, "
ID Code Entry Procedure". 8 - Ground : Continuity should exist.
LIIA0828E
Voltage : 2.5V - 3.0V
SEL237W
Condition Monitor item
Pushing LOCK KEYLESS LOCK : ON
Pushing UNLOCK KEYLESS UNLOCK : ON
Keep pushing UNLOCKRKE KEEP UNLK turns
to ON 3 seconds after
UNLOCK button is
pushed.
Pushing PANIC KEYLESS PANIC : ON
Pushing LOCK and UNLOCK
at the same timeRKE LCK-UNLCK : ON
Pushing Power Back Door KEYLESS PBD : ON
LIIA1487E

BL-54
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
2. Check continuity between remote keyless entry receiver con-
nector M120 terminals 1, 2, 4 and BCM connector M18 termi-
nals 18, 19, 20.
3. Check continuity between remote keyless entry receiver termi-
nals 1, 2 and 4 and ground.
OK or NG
OK >> Replace remote keyless entry receiver.
NG >> Repair or replace harness.
ACC Power CheckINFOID:0000000003532930
1.CHECK ACC POWER
With CONSULT-II
Check "ACC ON SW" in DATA MONITOR mode with CONSULT–II. Refer to BL-45, "
CONSULT-II Application
Item".
Without CONSULT-II
Check voltage between BCM connector M18 terminal 11 and
ground.
OK or NG
OK >> ACC power circuit is OK.
NG >> Check the following:
• 10A fuse [No. 4, located in fuse block (J/B)]
• Harness for open or short.
IPDM E/R Operation CheckINFOID:0000000003532931
1.CHECK IPDM E/R INPUT VOLTAGE1 - 18 : Continuity should exist.
2 - 20 : Continuity should exist.
4 - 19 : Continuity should exist.
1 - Ground : Continuity should not exist.
2 - Ground : Continuity should not exist.
4 - Ground : Continuity should not exist.
WIIA0308E
Monitor Item Condition
ACC ON SWIgnition switch position ACC : ON
Ignition switch position OFF : OFF
PIIA3367E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (–)
M18 11 GroundACC Battery voltage
OFF 0
PIIA7002E