Infiniti M45 (Y34). Manual — part 658
INTERIOR ROOM LAMP
LT-139
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D
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L
M
A
B
LT
Terminals and Reference Value for BCM
AKS002GJ
Terminal
No.
Wire
color
Signal description
Measuring condition
Reference value
Ignition
switch
Operation or condition
17
BR/Y
Data link RX
—
—
—
18
P
Data link TX
—
—
—
30
PU
Communication signal TX
(BCM-AV: Transmission)
—
—
—
31
LG
Communication signal RX
(AV-BCM: Receiving)
—
—
—
33
W
Door lock assembly rear LH
(door switch) signal
OFF
Door lock assembly
rear LH (door switch)
ON (open)
Approx. 0V
OFF (closed)
Battery voltage
37
LG
Front door switch (passenger
side) signal
OFF
Front door switch
(passenger side)
ON (open)
Approx. 0V
OFF (closed)
Battery voltage
56
B
Ground
—
—
Approx. 0V
60
L/OR
Ignition switch ACC or ON
ACC
—
Battery voltage
67
G/W
DATA line A-3
—
—
—
68
W/B
Ignition switch ON or START
ON
—
Battery voltage
69
PU/W
key switch signal
OFF
Key withdrawn (OFF)
Approx. 0V
Key inserted (ON)
Battery voltage
105
Y/L
Battery power supply
OFF
—
Battery voltage
110
OR
Ignition key hole illumination sig-
nal
OFF
Turned OFF
Battery voltage
Turned ON
Approx. 0V
113
B
Ground
—
—
Approx. 0V
129
G
Personal lamp switch signal
OFF
Personal lamp switch
One switch ON
5V or more
AUTO
5V or more
Both switch ON
Approx. 0V
130
W/L
Interior lamp switch ON signal
OFF
Room lamp switch
ON
Approx. 0V
AUTO
5V or more
OFF
5V or more
131
G/Y
Interior lamp switch OFF signal
OFF
Room lamp switch
ON
5V or more
AUTO
5V or more
OFF
Approx. 0V
133
Y/R
Map lamp LH signal
OFF
Turned OFF
Battery voltage
Dimming
8V or more
Turned ON
Approx. 0V
137
Y/G
Personal lamp RH signal
OFF
Turned OFF
Battery voltage
Dimming
8V or more
Turned ON
Approx. 0V
138
G/R
Personal lamp LH signal
OFF
Turned OFF
Battery voltage
Dimming
8V or more
Turned ON
Approx. 0V
140
Y/B
Map lamp RH signal
OFF
Turned OFF
Battery voltage
Dimming
8V or more
Turned ON
Approx. 0V
LT-140
INTERIOR ROOM LAMP
Terminals and Reference Value for Driver Door Control Unit (LCU)
AKS002GK
Work Flow
AKS002GL
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, refer to
section.
5.
Find the cause of trouble following the malfunction diagnosis chart by symptom and repair or replace as
necessary. 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
AKS002GM
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
R/Y
Front door switch (driver side)
signal
OFF
Front door switch
(driver side)
ON (open)
Approx. 0V
OFF (closed)
Battery voltage
143
W/L
Door lock assembly rear RH
(door switch) signal
OFF
Door lock assembly
rear RH (door switch)
ON (open)
Approx. 0V
OFF (closed)
Battery voltage
Terminal
No.
Wire
color
Signal description
Measuring condition
Reference value
Ignition
switch
Operation or condition
Terminal No.
Wire color
Item
Condition
Reference value
6
G/Y
Door unlock sensor
OFF (Locked)
→
ON (unlocked)
5V
→
0V
8
G/W
Data line A-3
—
—
14
Y/G
Power source (PTC)
—
Battery voltage
15
B
Ground
—
Approx. 0V
Item
Description
CONSULT-II
(Work support)
Display unit
(Setting of various vehicle
conditions)
Factory
setting
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.
—
SET I/L LGC-D- UNLCK
(CONSULT-II)
Illuminate Interior When Unlocking
Vehicle (display unit)
Selects ON-OFF of the inte-
rior lamp illumination at the
time the driver door is
unlocked.
ON
ON: Indicator ON
×
OFF
OFF: indicator OFF
—
INTERIOR ROOM LAMP
LT-141
C
D
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F
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H
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M
A
B
LT
INSPECTION FOR POWER AND GROUND CIRCUIT
1.
CHECK FUSE
Check if any of the following fuses in BCM are blown.
Refer to
LT-133, "Wiring Diagram — ROOM/L —"
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector and driver door control unit connector.
3.
Check voltage between BCM harness connector M4 terminals and ground.
4.
Check voltage between driver door control unit harness connec-
tor D8 terminal 14 (Y/G) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Check the following.
●
Harness for open or short between BCM and fuse
●
Harness for open or short between driver door control
unit and fusible link
Unit
Power source
Fuse No.
BCM
Battery
3
8
Ignition switch ACC or ON position
21
Ignition switch ON or START position
1
Terminals
Ignition switch position
(+)
(-)
OFF
ACC
ON
Connector
Terminal
(Wire color)
M4
105 (Y/L)
Ground
Battery
voltage
Battery
voltage
Battery
voltage
68 (W/B)
0V
0V
Battery
voltage
60 (L/OR)
0V
Battery
voltage
Battery
voltage
14 (Y/G) - Ground
: Battery voltage should exist.
PKIA5948E
PKIA5949E
LT-142
INTERIOR ROOM LAMP
3.
CHECK GROUND CIRCUIT
1.
Check continuity between BCM harness connector M4 terminals
56 (B), 113 (B) and ground.
2.
Check continuity between driver door control unit harness con-
nector D8 terminal 15 (B) and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair harness.
CONSULT-II Function
AKS002GN
●
CONSULT-II has the display function for the work support, data monitor and active test for each part by
combining data receiving and sending via the communication line from the BCM.
CONSULT-II BASIC OPERATION PROCEDURE
1.
With ignition switch OFF, connect “CONSULT-II” and “CON-
SULT-II CONVERTER” to data link connector, then turn ignition
switch ON.
Terminals
Continuity
Connector
Terminal (Wire color)
M4
56 (B)
Ground
Yes
113 (B)
15 (B) - Ground
: Continuity should exist.
PKIA5950E
PKIA5951E
IVMS diagnosis position
Diagnosis mode
Description
Interior illumination
Work support
Changes setting of each function.
Data monitor
Displays input data of the BCM and each LCU in real-time.
Active test
Operation of electrical loads can be checked by sending driving signal to them.
BCM part number
Displays BCM part No.
PKIA5840E
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