air condition INFINITI QX56 2006 Factory Service Manual

BL-36
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
4. CHECK POWER WINDOW BUS CIRCUIT FOR SHORT
Check continuity between BCM connector M18 terminal 22 and
ground.
OK or NG
OK >> Replace main power window and door lock/unlock switch or power window and door lock/unlock switch RH
NG >> Repair or replace harness.
Glass Hatch Switch Circuit InspectionEIS00AL6
NOTE:
Repair any front door lock actuator RH malfunction before proceeding with this diagnosis.
1. CHECK GLASS HATCH SWITCH
1. Turn ignition switch OFF.
2. Insure front door lock actuator RH is in the unlock position.
3. Check continuity between glass hatch switch terminal 2 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK HARNESS CONTINUITY
1. Disconnect glass hatch switch.
2. Disconnect BCM.
3. Check continuity between BCM connector M18 (A) terminal 30 and glass hatch switch connector D710 (B) terminal 2.
4. Check continuity between BCM connector M18 (A) terminal 30 and ground.
OK or NG
OK >> Glass hatch switch circuit is OK.
NG >> Repair or replace harness. 22 - Ground
: Continuity should not exist.
LIIA2359E
Connec-
tor Terminals
ConditionContinuity
(+) (– )
D710 2 Ground With the glass hatch switch
pressed
Ye s
With the glass hatch switch
released No
LIIA2399E
30 - 2
: Continuity should exist.
30 - Ground : Continuity should not exist.
LIIA2400E

BL-38
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
Front Door Lock Assembly LH (Actuator) CheckEIS005ZK
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-20, "
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-131, "FRONT DOOR LOCK" .
NG >> Repair or replace harness.
Connector Te r m i n a l s
Condition Voltage (V)
(Approx.)
(+) (-)
M20 59
Ground Driver door lock/unlock
switch is turned to
UNLOCK
0
→ Battery voltage
65 Driver door lock/unlock
switch is turned to LOCK 0
→ Battery voltage
LIIA1046E
Connector Terminals Connector Terminals Continuity
M20 59
D14 2Y
es
65 3Yes
Connector Terminals Continuity
M20 59
Ground No
65 No
LIIA1574E

POWER DOOR LOCK SYSTEMBL-39
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
Front Door Lock Actuator RH CheckEIS005ZL
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.
OK or NG
OK >> GO TO 2.
NG >> Replace BCM. Refer to BCS-20, "
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-131, "FRONT DOOR LOCK" .
NG >> Repair or replace harness.
Connector Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M20 65
Ground Door lock/unlock switch is
turned to LOCK
0
→ Battery voltage
for 300 ms
66 Door lock/unlock switch is
turned to UNLOCK 0
→ Battery voltage
for 300 ms
LIIA1048E
Terminals Continuity
65 3 Yes
66 2 Yes
Terminals Continuity
65 Ground No
66 No
LIIA1479E

BL-40
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
Rear Door Lock Actuator RH/LH CheckEIS005ZM
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-20, "
BCM" .
2. CHECK REAR DOOR LOCK ACTUATOR LH OR RH HARNESS
1. Disconnect BCM and each door lock actuator.
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-134, "REAR DOOR LOCK" .
NG >> Repair or replace harness.
Connector Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M20 65
Ground Door lock/unlock switch
is turned to LOCK
0
→ Battery voltage
for 300 ms
66 Door lock/unlock switch
is turned to UNLOCK 0
→ Battery voltage
for 300 ms
LIIA1048E
Terminals Continuity
65 3 Yes
66 2 Yes
Terminals Continuity
65 Ground No
66 No
LIIA1480E

POWER DOOR LOCK SYSTEMBL-41
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
Glass Hatch Lock Actuator CheckEIS005ZN
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-20, "
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.
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-135,
"BACK DOOR LOCK" .
NG >> Repair or replace harness.
Connector Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M19 53 Ground Glass hatch switch is
turned to depressed0
→ Battery voltage
for 300 ms
LIIA1938E
Terminals Continuity
53 3 Yes
Terminals Continuity
53 Ground No
LIIA1939E
Terminals Continuity
1 Ground Yes
LIIA1940E

BL-42
POWER DOOR LOCK SYSTEM
Revision: November 20092006 QX56
Front Door Lock Assembly LH (Key Cylinder Switch) CheckEIS005ZO
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-27, "
DATA MONITOR" .

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
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. KEY CYL LK-SW : ON
KEY CYL UN-SW : ON
LIIA0188E
Connector
Terminals
ConditionVoltage (V)
(Approx.)
(+) (– )
D7 4
Ground Neutral/Unlock
5
Lock 0
6 Neutral/Lock
5
Unlock 0
LIIA0566E
Connector TerminalsContinuity
D14 5 – Ground Yes
WIIA1067E

POWER DOOR LOCK SYSTEMBL-43
C
DE
F
G H
J
K L
M A
B
BL
Revision: November 2009 2006 QX56
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-131, "
FRONT DOOR
LOCK" .
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.
Terminals Condition Continuity
1 – 5 Key is turned to UNLOCK or neutral.
No
Key is turned to LOCK. Yes
5 – 6 Key is turned to LOCK or neutral.
No
Key is turned to UNLOCK. Yes
LIIA1573E
Connector Terminals ConnectorTerminals
(wire color) Continuity
A: Main
power win-
dow and
door lock/ unlock
switch 4B: Front
door lock
assembly LH (key
cylinder switch) 1Yes
66Y es
4, 6 Ground No
WIIA1068E

BL-62
REMOTE KEYLESS ENTRY SYSTEM
Revision: November 20092006 QX56
Key Switch (Insert) CheckEIS00602
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.
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. KEY ON SW
: ON
KEY ON SW : OFF
LIIA0169E
ConnectorTerminals
ConditionVoltage (V)
(+) (– )
M18 37 Ground Key is inserted. Battery voltage
Key is removed. 0
LIIA0567E
TerminalsCondition Continuity
3 – 4 Key is inserted.
Yes
Key is removed. No
LIIA1044E

BL-94
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 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.
Hood Switch CheckEIS0060Q
1. CHECK HOOD SWITCH
Check hood switch and hood fitting condition.
OK or NG
OK >> GO TO 2.
NG >> Adjust installation of hood switch.
2. CHECK HOOD SWITCH INPUT SIGNAL
With CONSULT-II
Check "HOOD SW" in "DATA MONITOR" mode with CONSULT-II.
Without CONSULT-II
Check voltage between IPDM E/R harness connector E122 terminal
41 and ground.
OK or NG
OK >> Hood switch is OK.
NG >> GO TO 3. 8 - Ground
: Continuity should exist.
LIIA0828E
When hood is open : HOOD SW ON
When hood is closed : HOOD SW OFF
LIIA0038E
ConnectorTerminal
Condition of
hood Voltage (V)
(Approx.)
(+) (-)
E122 41Ground Open
0
Closed Battery voltage
WIIA0601E

BL-96
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: November 20092006 QX56
3. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and combination meter (security indicator lamp).
3. Check continuity between BCM connector (A) M18 terminal 23 and combination meter (security indicator lamp) harness con-
nector (B) M24 terminal 28.
4. Check continuity between BCM connector (A) M18 terminal 23 and ground.
OK or NG
OK >> Check the following:

10A fuse [No. 19, located in fuse block (J/B)]

Harness for open or short between combination meter (security indicator lamp) and fuse
NG >> Repair or replace harness.
Front Door Lock Assembly LH (Key Cylinder Switch) CheckEIS0060S
1. CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH)
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 in CONSULT –II.Refer to BL-27, "
DATA MONITOR" .

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. 23 - 28
: Continuity should exist.
23 - ground : Continuity should not exist.
LIIA2253E
KEY CYL LK-SW : ON
KEY CYL UN-SW : ON
LIIA0188E
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (– )
D7 4
Ground Neutral/Unlock
5
Lock 0
6 Neutral/Lock
5
Unlock 0
LIIA0566E