Infiniti QX56 (Z62). Manual — part 832
INL-58
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
INTERIOR ROOM LAMP CONTROL CIRCUIT
Description
INFOID:0000000006216068
Controls each interior room lamp (ground side) by PWM signal.
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function Check
INFOID:0000000006216069
CAUTION:
Before performing the diagnosis, check that the following are normal.
• Interior room lamp power supply
• Map lamp bulb
• Personal lamp bulb
• Foot lamp bulb
1.
CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT-III ACTIVE TEST
1.
Switch the map lamp switch and personal lamp switch to DOOR.
2.
Turn ignition switch ON.
3.
Select “INT LAMP” of BCM (INT LAMP) active test item.
4.
With operating the test items, check that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).
Does the interior room lamp turns ON/OFF (gradual brightening/dimming)?
YES
>> Interior room lamp control circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000006216070
1.
CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT-III ACTIVE TEST
1.
Switch the map lamp switch and personal lamp switch to DOOR.
2.
Turn ignition switch OFF.
3.
Remove all the bulbs of map lamp, foot lamp and personal lamp.
4.
Turn ignition switch ON.
5.
Select “INT LAMP” of BCM (INT LAMP) active test item.
6.
With operating the test item, check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to
BCS-81, "Removal and Installation"
2.
CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector, map lamp connector, personal lamp connector and foot lamp connector.
3.
Check continuity between BCM harness connector and foot lamp harness connector.
On
: Interior room lamp gradual brightening
Off
: Interior room lamp gradual dimming
BCM
Ground
Test item
Continuity
Connector
Terminal
M70
63
INT LAMP
On
Existed
Off
Not existed
INTERIOR ROOM LAMP CONTROL CIRCUIT
INL-59
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
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A
B
INL
N
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4.
Check continuity between BCM harness connector and map lamp harness connector.
5.
Check continuity between personal lamp harness connector and map lamp harness connector.
Is the inspection result normal?
YES
>> Replace map lamp, personal lamp or foot lamp.
NO
>> Repair or replace harnesses.
3.
CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector, map lamp connector, personal lamp connector and foot lamp connector.
3.
Check continuity between BCM harness connector and ground.
4.
Check continuity between personal lamp harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
NO
>> Repair or replace harnesses.
BCM
Foot lamp
Continuity
Connector
Terminal
Connector
Terminal
M70
63
Driver side
M89
2
Existed
Passenger side
M90
1
Rear LH
B479
66
Rear RH
B480
BCM
Map lamp
Continuity
Connector
Terminal
Connector
Terminal
M70
63
R18
7
Existed
Personal lamp
Map lamp
Continuity
Connector
Terminal
Connector
Terminal
R21
2
R18
5
Existed
BCM
Ground
Continuity
Connector
Terminal
M70
63
Not existed
Personal lamp
Ground
Continuity
Connector
Terminal
R21
2
Not existed
INL-60
< DTC/CIRCUIT DIAGNOSIS >
LUGGAGE ROOM LAMP CIRCUIT
LUGGAGE ROOM LAMP CIRCUIT
Description
INFOID:0000000006216071
Controls the luggage room lamp and automatic back door close switch illumination (ground side) to turn the
luggage room lamp and automatic back door close switch illumination ON and OFF.
Diagnosis Procedure
INFOID:0000000006216072
CAUTION:
Before performing the diagnosis, check that the following are normal.
• Interior room lamp power supply
• Luggage room lamp bulb
1.
CHECK LUGGAGE ROOM LAMP OUTPUT
1.
Turn ignition switch OFF.
2.
Remove the luggage room bulb.
3.
Disconnect automatic back door close switch connector.
4.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to
BCS-81, "Removal and Installation"
2.
CHECK LUGGAGE ROOM LAMP OPEN CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and luggage room lamp harness connector.
3.
Check continuity between BCM harness connector and automatic back door close switch harness con-
nector.
Is the inspection result normal?
YES
>> Replace luggage room lamp or automatic back door close switch.
NO
>> Repair or replace harnesses.
3.
CHECK LUGGAGE ROOM LAMP SHORT CIRCUIT
1.
Disconnect BCM connector.
2.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> Replace BCM. Refer to
BCS-81, "Removal and Installation"
BCM
Ground
Condition
Continuity
Connector
Terminal
M69
49
Back door
Open
Existed
Closed
Not existed
BCM
Luggage room lamp
Continuity
Connector
Terminal
Connector
Terminal
M69
49
B11
1
Existed
BCM
Automatic back door close switch
Continuity
Connector
Terminal
Connector
Terminal
M69
49
D158
4
Existed
BCM
Ground
Continuity
Connector
Terminal
M69
49
Not existed
LUGGAGE ROOM LAMP CIRCUIT
INL-61
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
INL
N
O
P
NO
>> Repair or replace harnesses.
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