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DAYTIME LIGHT SYSTEM LT-41
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M A
B
LT
Revision: 2006 July 2007 FX35/FX45
Wiring Diagram — DTRL —NKS002W1
TKWM4294E
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LT-42
DAYTIME LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
TKWM4295E
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DAYTIME LIGHT SYSTEM LT-43
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L
M A
B
LT
Revision: 2006 July 2007 FX35/FX45
TKWM4296E
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LT-44
DAYTIME LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
TKWM4489E
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DAYTIME LIGHT SYSTEM LT-45
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LT
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Values for BCMNKS002W2
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" .
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
2GY Combination
switch input 5 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Lighting switch 2ND Approx. 2.0 V
3L/B Combination
switch input 4 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Front fog lamp switch
(Operate only front fog lamp
switch)
Approx. 0.8 V
Any of the conditions below
Lighting switch 2ND
Lighting switch PASSING
(Operates only PASSING
switch)
Approx. 1.0 V
4PU/W Combination
switch input 3 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF Approx. 0 V
Any of the conditions below
Lighting switch AUTO Approx. 1.0 V
PKIB4953J
PKIB4955J
PKIB4959J
PKIB4959J
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LT-46
DAYTIME LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
32 GY/R Combination
switch output 5 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Front fog lamp switch
(Operates only front fog
lamp switch)
Approx. 1.0 V
33 G Combination
switch output 4 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Lighting switch AUTO Approx. 1.2 V
34 W/B Combination
switch output 3 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Lighting switch 2ND Approx. 1.2 V
Termi-
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4956J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
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DAYTIME LIGHT SYSTEM LT-47
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LT
Revision: 2006 July 2007 FX35/FX45How to Proceed With Trouble DiagnosisNKS002W3
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 3 8 , "
System Description" .
3. Perform Preliminary Check. Refer to LT- 4 8 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does daytime light lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
35 W/G Combination
switch output 2 ON Lighting, turn,
wiper switch
(Wiper intermit-
tent dial position 4) OFF
Approx. 7.2 V
Any of the conditions below
Lighting switch 2ND
Lighting switch PASSING
(Operates only PASSING
switch)
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
Te r m i -
nal No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
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LT-48
DAYTIME LIGHT SYSTEM
Revision: 2006 July 2007 FX35/FX45
Preliminary CheckNKS002W4
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES
Check for blown fuses.
Refer to LT- 4 1 , "
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. 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.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
Unit Power source Fuse and fusible link No.
BCM Battery
M
22
Ignition switch ON or START position 1
Daytime light relay Battery 36
(+) (-) Ignition switch position
BCM
connector Terminal OFF ON
M3 38 Ground Approx. 0 V Battery voltage
M4 42 Battery voltage Battery voltage
55 Battery voltage Battery voltage
PKIA7520E
BCM connector Terminal Ground Continuity
M4 49
Ye s
52
SKIA5294E