Infiniti Q45. Manual — part 698
INTERIOR ROOM LAMP
LT-129
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LT
Terminals and Reference Values for BCM
NKS0019T
Terminal
No.
Wire
color
Item
Measuring condition
Reference value
Ignition
switch
Operation or condition
17
BR/Y
Data link RX
—
—
—
18
G/B
Data link TX
—
—
—
30
PU
Communication signal TX
(BCM-AV: Transmission)
—
—
—
31
LG
Communication signal RX
(AV-BCM: Receiving)
—
—
—
33
W
Rear LH door switch signal
OFF
Rear LH door switch
ON (open)
Approx. 0 V
OFF (closed)
Battery voltage
37
W/G
Front door switch (passenger
side) signal
OFF
Front door switch (pas-
senger side) signal
ON (open)
Approx. 0 V
OFF (closed)
Battery voltage
56
B
Ground
—
—
—
60
L/OR
Ignition switch (ACC)
ACC
—
Battery voltage
67
G/W
Data line A-3
—
—
—
68
W/B
Ignition switch
ON
—
Battery voltage
69
PU/W
Key switch and key lock solenoid
signal
OFF
Key withdrawn (OFF)
Approx. 0 V
Key inserted (ON)
Battery voltage
105
Y/L
Battery power supply
OFF
—
Battery voltage
110
SB
Ignition switch illumination signal
OFF
Turned OFF
Battery voltage
Turned ON
Approx. 0 V
113
B
Ground
—
—
—
129
G
Personal lamp switch signal
OFF
Personal lamp switch
One switch ON
Approx. 5 V
AUTO
Approx. 5 V
Both switch ON
Approx. 0 V
130
GY
Interior lamp illumination switch
ON signal
OFF
Interior lamp illumination
switch
ON
Approx. 0 V
AUTO
Approx. 5 V
OFF
Approx. 5 V
131
OR
Interior lamp illumination switch
OFF signal
OFF
Interior lamp illumination
switch
ON
Approx. 5 V
AUTO
Approx. 5 V
OFF
Approx. 0 V
133
BR
Map lamp LH signal
OFF
Turned OFF
Battery voltage
Dimming
Approx. 8 V
Turned ON
Approx. 0 V
137
L
Personal lamp RH signal
OFF
Turned OFF
Battery voltage
Dimming
Approx. 8 V
Turned ON
Approx. 0 V
138
Y
Personal lamp LH signal
OFF
Turned OFF
Battery voltage
Dimming
Approx. 8 V
Turned ON
Approx. 0 V
140
W
Map lamp RH signal
OFF
Turned OFF
Battery voltage
Dimming
Approx. 8 V
Turned ON
Approx. 0 V
LT-130
INTERIOR ROOM LAMP
Terminals and Reference Values for Driver Door Control Unit (LCU01)
NKS0019U
Work Flow
NKS0019V
1.
Confirm the symptom or customer complaint.
2.
Understand system description. Refer to
.
3.
Perform the preliminary check. Refer to
.
4.
Does the door lock system operate normally? If YES, GO TO 5. If NO, GO TO Power door lock system
in “BODY LOCK & SECURITY SYSTEM (BL)” section.
5.
Find the cause of trouble following the trouble diagnosis chart by symptom and repair or replace as neces-
sary. Refer to
.
6.
Does the total coordinated interior illumination operate normally? If YES, GO TO 7. If NO, GO TO 5.
7.
INSPECTION END
Preliminary Check
NKS0019W
SETTING CHANGE FUNCTION
●
Setting for each operation can be changed using CONSULT-II and a display unit.
CAUTION:
After the setting is changed, the new setting will be maintained even if the battery is disconnected.
142
W/R
Driver door switch signal
OFF
Driver door switch
ON (open)
Approx. 0 V
OFF (closed)
Battery voltage
143
W/L
Rear RH door switch signal
OFF
Rear RH door switch
ON (open)
Approx. 0 V
OFF (closed)
Battery voltage
Terminal
No.
Wire
color
Item
Measuring condition
Reference value
Ignition
switch
Operation or condition
Terminal
No.
Wire
color
Item
Measuring condition
Reference value
Ignition
switch
Operation or condition
6
G/Y
Door unlock sensor
OFF
ON (unlocked)
Approx. 0 V
OFF (locked)
Approx. 5 V
8
G/W
Data line A-3
—
—
—
14
Y/G
Power source (circuit breaker)
OFF
—
Battery voltage
15
B
Ground
ON
—
Approx. 0 V
Item
Description
CONSULT-II
(Work support)
Display unit
(Setting of various vehicle
conditions)
Factory
setting
SET I/L LGC-D- UNLCK (CON-
SULT-II) Illuminate Interior When
Unlocking Vehicle (display unit)
Selects ON-OFF of the interior
lamp illumination at the time
the driver door is unlocked.
ON
ON: Indicator ON
×
OFF
OFF: indicator OFF
—
SET INT- L LOGIC-TIM
(CONSULT-II)
Interior Lights Off Delay
(display unit)
Selects interior lamp timer set
time in four steps.
Mode 1 (off)
OFF: Display OFF
—
Mode 2 (15 seconds)
15 seconds: Display 15 sec.
—
Normal (30 seconds)
30 seconds: Display 30 sec.
×
Mode 3 (45 seconds)
45 seconds: Display 45 sec.
—
INTERIOR ROOM LAMP
LT-131
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LT
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.
CHECK FUSE
Check for blown fuses.
Refer to
LT-123, "Wiring Diagram — INT/L —"
OK or NG
OK
>> GO TO 2.
NG
>> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector and driver door control unit (LCU01)
connector.
3.
Check voltage between BCM and driver door control unit
(LCU01) harness connector, and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
Unit
Power source
Fuse and fusible link No.
BCM
Battery
3
Ignition switch ACC or ON
21
Ignition switch ON or START
1
Driver door control unit (LCU01)
Battery
H
Terminal
Ignition switch position
(+)
(
−
)
OFF
ON
Connector
Terminal
BCM (M4)
105
Ground
Battery voltage
Battery voltage
68
Approx. 0 V
Battery voltage
Driver door
LCU (D8)
14
Battery voltage
Battery voltage
PKIA5137E
LT-132
INTERIOR ROOM LAMP
3.
CHECK GROUND CIRCUIT
Check continuity between BCM and driver door control unit (LCU01)
harness connector, and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness or connector.
Terminal
Continuity
Connector
Terminal
Ground
BCM (M4)
56
Yes
113
Driver door LCU (D8)
15
PKIA5138E
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