Infiniti M45 (Y34). Manual — part 638
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
LT-59
C
D
E
F
G
H
I
J
L
M
A
B
LT
Terminals and Reference Value for BCM
AKS004D1
Terminals and Reference Value for Daytime Light Control Unit
AKS004T0
Terminal
No.
Wire
color
Item
Measuring condition
Reference value
Ignition
switch
Operation or condition
3
R/L
Tail lamp signal
ON
Lighting switch: 1st
ON
Battery voltage
OFF
Approx. 0V
5
W/PU
Headlamp relay control signal
ON
Lighting switch:
AUTO
Light is applied to optical
sensor.
Battery voltage
Light is not applied to opti-
cal sensor.
Approx. 0V
11
LG/B
Tail lamp relay control signal
ON
Light switch:
AUTO
Light is applied to optical
sensor.
Battery voltage
Light is not applied to opti-
cal sensor.
Approx. 0V
14
Y/L
Lighting switch AUTO signal
ON
Lighting switch
AUTO
Approx. 0V
OFF
Approx. 8V
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)
—
—
—
37
LG
Front door switch
(Passenger side) signal
OFF
Front door switch
(Passenger side)
ON (open)
Approx. 0V
OFF (close)
Battery voltage
52
G/R
Auto light sensor signal
ON
Light is applied to optical sensor.
3V or more
Light is not applied to optical sensor.
Approx. 0V
56
B
Ground
—
—
Approx. 0V
58
Y/B
Auto light sensor ground
ON
—
Approx. 0V
59
SB
Auto light sensor power supply
ON
—
5V or more
60
L/OR
Ignition switch ACC or ON
ACC
—
Battery voltage
68
W/B
Ignition switch ON or START
ON
—
Battery voltage
105
Y/L
Battery power supply
OFF
—
Battery voltage
113
B
Ground
—
—
Approx. 0V
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) signal
ON (open)
Approx. 0V
OFF (close)
Battery voltage
Terminal
No.
Wire
color
Item
Condition
Reference value
1
W/R
Alternator
When turning ignition switch to “ON”
Approx. 0V
When engine is running
Battery voltage
When turning ignition switch to “OFF” and “ACC”
Approx. 0V
2
SB
Ignition switch START
When turning ignition switch to “START”
Battery voltage
When turning ignition switch to “ON” from “START”
Approx. 0V
When turning ignition switch to “OFF” and “ACC”
Approx. 0V
LT-60
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
3
W/G
Ignition switch ON or
START
When turning ignition switch to “ON”
Battery voltage
When turning ignition switch to “START”
Battery voltage
When turning ignition switch to “OFF” and “ACC”
Approx. 0V
4
W/G
RH light fuse
When lighting switch is turned to the 2ND position with “HI BEAM”
or “FLASH TO PASS” position
Battery voltage
When lighting switch is turned to “FLASH TO PASS” position with
ignition switch “ON” position
Battery voltage
5
W/G
LH light fuse
When lighting switch is turned to the 2ND position with “HI BEAM”
or “FLASH TO PASS” position
Battery voltage
When lighting switch is turned to “FLASH TO PASS” position with
ignition switch “ON” position
Battery voltage
6
R/W
LH high
When lighting switch is turned to the 2ND position with “HI BEAM”
or “FLASH TO PASS” position
Battery voltage
When releasing parking brake with engine running and turning
lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P position.
Half battery voltage
7
R/W
RH high
When lighting switch is turned to the 2ND position with “HI BEAM”
or “FLASH TO PASS” position
Battery voltage
When releasing parking brake with engine running and turning
lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P position.
Battery voltage
9
P
RH high main
(ground)
When turning lighting switch to the 2ND position with “HI BEAM“
or “FLASH TO PASS” position
Approx. 0V
When releasing parking brake with engine running and turning
lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P position.
Half battery voltage
10
L/Y
LH high main
(ground)
When turning lighting switch to the 2ND position with “HI BEAM”
or “FLASH TO PASS” position
Approx. 0V
When releasing parking brake with engine running and turning
lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P position.
Approx. 0V
13
L/R
LH light main switch
(High beam)
When turning lighting switch to the 2ND position with “HI BEAM”
or “FLASH TO PASS” position
Approx. 0V
14
P
RH light main switch
(High beam)
When turning lighting switch to the 2ND position with “HI BEAM”
or “FLASH TO PASS” position
Approx. 0V
16
B
Ground
—
Approx. 0V
17
Y/R
Parking brake switch
When parking brake is released
Battery voltage
When parking brake is set
Approx. 0V
Terminal
No.
Wire
color
Item
Condition
Reference value
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
LT-61
C
D
E
F
G
H
I
J
L
M
A
B
LT
Symptom Chart
AKS002FL
Power Supply and Ground Circuit Inspection
AKS003SD
1.
CHECK FUSE
Check for blown headlamp battery saver control unit, headlamp relay-1 and -2, and daytime light control unit
fuses.
Refer to
LT-49, "Wiring Diagram — DTRL —"
OK or NG
OK
>> GO TO 2.
NG
>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
Symptom
Possible cause and reference
Neither headlamp operates.
●
Refer to
LT-61, "Power Supply and Ground Circuit Inspection"
●
Refer to
LT-70, "Lighting Switch Circuit Inspection"
If above systems are normal, replace the headlamp battery saver control unit.
Headlamp (low beam) does not operate, but head-
lamp (high beam) does operate.
●
Refer to
LT-61, "Power Supply and Ground Circuit Inspection"
●
Refer to
LT-64, "Headlamp Relay-1 Circuit Inspection"
If above systems are normal, replace the headlamp battery saver control unit.
Headlamp (high beam) does not operate, but head-
lamp (low beam) does operate.
●
Refer to
LT-61, "Power Supply and Ground Circuit Inspection"
●
Refer to
LT-64, "Headlamp Relay-2 Circuit Inspection"
If above systems are normal, replace the headlamp battery saver control unit.
RH low beam does not operate, but LH low beam
does operate.
●
Refer to
LT-61, "Power Supply and Ground Circuit Inspection"
●
Refer to
LT-64, "Headlamp Relay-1 Circuit Inspection"
●
Refer to
LT-65, "Headlamp (Low) Circuit Inspection"
LH low beam does not operate, but RH low beam
does operate.
RH high beam does not operate, but LH high beam
does operate.
●
Refer to
LT-68, "Headlamp RH (High) Circuit Inspection"
.
●
Refer to
LT-70, "Lighting Switch Circuit Inspection"
If above systems are normal, replace the daytime light control unit.
LH high beam does not operate, but RH high beam
does operate.
●
Refer to
LT-66, "Headlamp LH (High) Circuit Inspection"
●
Refer to
LT-70, "Lighting Switch Circuit Inspection"
If above systems are normal, replace the daytime light control unit.
High beam indicator does not work.
●
Refer to
LT-69, "High Beam Indicator Circuit Inspection"
If above system is normal, replace the combination meter.
Battery saver control does not operate properly.
●
Refer to
LT-71, "Front Door Switch Circuit Inspection"
●
Refer to
LT-73, "Headlamp Battery Saver Control Unit Circuit Inspection"
●
Refer to
LT-70, "Lighting Switch Circuit Inspection"
If the above systems are normal, replace the headlamp battery saver control unit.
Daytime light control does not operate properly.
●
Refer to
LT-61, "Power Supply and Ground Circuit Inspection"
●
Refer to
LT-73, "Daytime Light Control Unit Circuit Inspection"
If the above systems are normal, replace the daytime light control unit.
Unit or relay
Power source
Fuse No.
Headlamp battery saver control unit
Battery
6
Headlamp relay-1
Battery
55
57
Headlamp relay-2
Battery
73
Daytime light control unit
Ignition switch ON or START position
82
LT-62
HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -
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 between headlamp
battery saver control unit and fuse.
3.
CHECK HEADLAMP RELAY-1 POWER SUPPLY CIRCUIT
1.
Remove headlamp relay-1.
2.
Check voltage between headlamp relay-1 harness connector
E3-4 terminals 2, 3 or 7 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Replace fuse, fusible link and relay block (J/B).
4.
CHECK HEADLAMP RELAY-2 POWER SUPPLY CIRCUIT
1.
Remove headlamp relay-2.
2.
Check voltage between headlamp relay-2 harness connector E5
terminal 1 (PU) and ground.
3.
Check voltage between headlamp relay-2 harness connector E5
terminal 3 (PU) and ground.
OK or NG
OK
>> GO TO 5.
NG
>> Replace fuse, fusible link and relay block.
7 (Y/G) - Ground
: Battery voltage should exist.
PKIA5879E
Terminals
Ignition switch position
(+)
(-)
OFF
Connector
Terminal
E3 - 4
2
Ground
Battery voltage
3
7
PKIA5880E
1 (PU) - Ground
: Battery voltage should exist.
3 (PU) - Ground
: Battery voltage should exist.
PKIA5881E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст