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AUTO LIGHT SYSTEM LT-57
C
D E
F
G H
I
J
L
M A
B
LT
Revision: 2006 July 2007 FX35/FX45
SchematicNKS002WG
TKWM0611E
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LT-58
AUTO LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
Wiring Diagram — AUTO/L —NKS002WH
TKWM4297E
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AUTO LIGHT SYSTEM LT-59
C
D E
F
G H
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J
L
M A
B
LT
Revision: 2006 July 2007 FX35/FX45
TKWM4298E
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LT-60
AUTO LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
TKWM4299E
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AUTO LIGHT SYSTEM LT-61
C
D E
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G H
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L
M A
B
LT
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for BCMNKS002WI
CAUTION:
Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.
Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-II. Refer to LT-
11 7, "DATA MONITOR" .
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
4L/B Combination switch
input 3 ON Lighting, turn, wiper
switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Lighting switch
AUTO
Approx. 1.0 V
11 LG Ignition switch (ACC) ACC — Battery voltage
12 P/B Front door switch
(Passenger side) signal OFF Front door switch
(Passenger side) ON (open) Approx. 0 V
OFF (closed) Approx. 7.5 - 8.0 V
13 P/L Rear door switch RH
signal OFF Rear door switch RH
(Personal lamp RH
ON or OFF position) ON (open) Approx. 0 V
OFF (closed) Battery voltage
14 P Optical sensor signal ON When optical sensor is illuminated
3.1 V or more
Note
When optical sensor is not illuminated 0.6 V or less
17 Y/G Optical sensor power
supply ON — Approx. 5 V
18 B Sensor ground ON — Approx. 0 V
PKIB4959J
SKIB3419J
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LT-62
AUTO LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
NOTE:
Optical sensor must be securely subjected to work lamp light. If optical sensor is insufficiently illuminated, the measured val ue may not
satisfy standard. 33 G
Combination switch
output 4 ON Lighting, turn, wiper
switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Lighting switch
AUTO
Approx. 1.2 V
38 W/L Ignition switch (ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power supply OFF — Battery voltage
58 L Back door switch signal OFF Back door closure
motor (door switch) ON (open) Approx. 0 V
OFF (closed) Battery voltage
62 W Front door switch
(Driver side) signal OFF Front door switch
(Driver side) ON (open) Approx. 0 V
OFF (closed) Approx. 7.0 - 7.5 V
63 P Rear door switch LH
signal OFF Rear door switch LH ON (open) Approx. 0 V
OFF (closed) Battery voltage
Terminal
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
PKIB4960J
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AUTO LIGHT SYSTEM LT-63
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G H
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M A
B
LT
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for IPDM E/RNKS002WJ
How to Proceed With Trouble DiagnosisNKS002WK
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 5 5 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 6 4 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction. Refer to LT- 6 9 , "
Symptom Chart" .
5. Does auto light system operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Terminal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
20 LG Headlamp low (RH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
22 R Parking, license plate, side
marker and tail lamps ON
Lighting switch 1ST
position OFF Approx. 0 V
ON Battery voltage
27 BR Headlamp high (RH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
28 SB Headlamp high (LH) ON Lighting switch HIGH
or PASS position OFF Approx. 0 V
ON Battery voltage
30 GY Headlamp low (LH) ON Lighting switch 2ND
position OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN − H—— —
49 R CAN − L—— —
60 B Ground ON — Approx. 0 V
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LT-64
AUTO LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
Preliminary CheckNKS002WL
SETTING CHANGE FUNCTIONS
Sensitivity of auto light system can be adjusted using CONSULT-II. Refer to LT- 6 6 , "WORK SUPPORT" .
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT-58, "Wiring Diagram — AUTO/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 PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM 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
M
22
Ignition switch ON or START position 1 Ignition switch ACC or ON position 6
IPDM E/R Battery 71
72
74
76
86
(+) (-) Ignition switch position
BCM con- nector Terminal OFF ACC ON
M3 11
Ground Approx. 0 V
Battery
voltage Battery
voltage
38 Approx. 0 V Approx. 0 V Battery
voltage
M4 42
Battery
voltage Battery
voltage Battery
voltage
55 Battery
voltage Battery
voltage Battery
voltage
PKIA5204E