Infiniti M45 (Y34). Manual — part 652
PARKING, LICENSE PLATE AND TAIL LAMPS
LT-115
C
D
E
F
G
H
I
J
L
M
A
B
LT
TKWA0540E
LT-116
PARKING, LICENSE PLATE AND TAIL LAMPS
Terminals and Reference Value for Headlamp Battery Saver Control Unit
AKS003ZH
Terminals and Reference Value for BCM
AKS003ZI
CONSULT-II Function
AKS003ZJ
Refer to
LT-20, "CONSULT-II Function for Auto Light System"
Terminal
No.
Wire
color
Item
Operation or condition
Reference value
1
W/B
Ignition switch ON or
START
Ignition switch
OFF or ACC
Approx. 0V
ON or START
Battery voltage
4
B
Ground
—
Approx. 0V
5
L
Tail lamp switch 1
lighting switch
OFF
Battery voltage
1ST or 2ND
Approx. 0V
6
LG/B
Tail lamp relay 1
Ignition switch
(with lighting
switch 1ST or
2ND)
OFF
or
ACC
More than 45 seconds after ignition
switch is turned OFF or ACC
Battery voltage
Within 45 seconds after ignition switch
is turned OFF or ACC
Approx. 0V
ON or START
Approx. 0V
Headlamps illuminate by auto light control.
Approx. 0V
7
Y/G
Battery power supply
—
Battery voltage
10
Y/R
RAP input signal
Ignition switch
OFF or ACC (After more than 45 seconds with
ignition switch turned OFF or ACC)
Battery voltage
ON or START
Approx. 0V
11
B
Ground
—
Approx. 0V
13
L
Tail lamp switch 2
Lighting switch
OFF
Battery voltage
1ST or 2ND
Approx. 0V
14
LG/B
Tail lamp relay 2
Ignition switch
(with lighting
switch 1ST or
2ND)
OFF
or
ACC
More than 45 seconds after ignition
switch is turned OFF or ACC
Battery voltage
Within 45 seconds after ignition switch
is turned OFF or ACC
Approx. 0V
ON or START
Approx. 0V
Headlamps illuminate by auto light control.
Approx. 0V
Terminal
No.
Wire
color
Item
Measuring condition
Reference value
Ignition
switch
Operation or condition
11
LG/B
Tail lamp relay control signal
ON
Lighting switch:
AUTO
Light is applied to optical
sensor.
Battery voltage
Light is not applied to optical
sensor.
Approx. 0V
14
Y/L
Lighting switch (AUTO) signal
ON
Lighting switch
AUTO
Approx. 0V
OFF
8V or more
37
LG
Front door switch (passenger
side) signal
OFF
Front door switch
(passenger side)
ON (open)
Approx. 0V
OFF (close)
Battery voltage
135
Y/G
RAP output signal
OFF
When headlamp battery saver timer is operated
Approx. 0V
142
R/Y
Front door switch (driver side)
signal
OFF
Front door switch
(driver side)
ON (open)
Approx. 0V
OFF (close)
Battery voltage
PARKING, LICENSE PLATE AND TAIL LAMPS
LT-117
C
D
E
F
G
H
I
J
L
M
A
B
LT
No Lamps Operate (Including Headlamps)
AKS003Y6
1.
CHECK FUSE
Check for blown headlamp battery saver control unit fuse.
Refer to
LT-111, "Wiring Diagram — TAIL/L —"
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.
CHECK HEADLAMP BATTERY SAVER CONTROL UNIT POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect headlamp battery saver control unit connector.
3.
Check voltage between headlamp battery saver control unit har-
ness connector M34 terminal 7 (Y/G) and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open or short headlamp battery
saver control unit and fuse.
3.
CHECK HEADLAMP BATTERY SAVER CONTROL UNIT GROUND CIRCUIT
Check continuity between headlamp battery saver control unit har-
ness connector terminals and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair harness.
4.
CHECK LIGHTING SWITCH
Check continuity of lighting switch. Refer to
LT-102, "Switch Circuit Inspection"
.
OK or NG
OK
>> GO TO 5.
NG
>> Replace lighting switch.
Unit
Power source
Fuse No.
Headlamp battery saver control unit
Ignition switch ON or START position
1
Battery
6
7 (Y/G) - Ground
: Battery voltage should exist.
PKIA5931E
Terminals
Continuity
Connector
Terminal (Wire color)
M33
4 (B)
Ground
Yes
M34
11 (B)
PKIA5932E
LT-118
PARKING, LICENSE PLATE AND TAIL LAMPS
5.
CHECK LIGHTING SWITCH POWER SUPPLY CIRCUIT 1
1.
Disconnect headlamp battery saver control unit connector and
lighting switch connector.
2.
Check continuity between headlamp battery saver control unit
harness connector M33 terminal 5 (L) and lighting switch har-
ness connector M55 terminal 11 (L).
3.
Check continuity between headlamp battery saver control unit
harness connector M33 terminal 5 (L) and ground.
OK or NG
OK
>> GO TO 6.
NG
>> Repair harness or connector.
6.
CHECK LIGHTING SWITCH POWER SUPPLY CIRCUIT 2
1.
Check continuity between headlamp battery saver control unit
harness connector M34 terminal 13 (L) and lighting switch har-
ness connector M55 terminal 11 (L).
2.
Check continuity between headlamp battery saver control unit
harness connector M34 terminal 13 (L) and ground.
OK or NG
OK
>> GO TO 7.
NG
>> Repair harness or connector.
7.
CHECK LIGHTING SWITCH GROUND CIRCUIT
Check continuity between lighting switch harness connector M55 ter-
minal 5 (B) and ground.
OK or NG
OK
>> Replace headlamp battery saver control unit.
NG
>> Repair harness.
No Parking, Side Marker, License and Tail Lamps Operate Properly
AKS003Y7
1.
CHECK FUSE
Check for blown tail lamp relay fuse.
LT-111, "Wiring Diagram — TAIL/L —"
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
5 (L) - 11 (L)
: Continuity should exist.
5 (L) - Ground
: Continuity should not exist.
PKIA5933E
13 (L) - 11 (L)
: Continuity should exist.
13 (L) - Ground
: Continuity should not exist.
PKIA5934E
5 (B) - Ground
: Continuity should exist.
PKIA5935E
Relay
Power source
Fuse No.
Tail lamp relay
Battery
54
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