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WW-42
HEADLAMP WASHER
SchematicBKS002EM
TKWM4644E
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HEADLAMP WASHER
WW-43
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Wiring Diagram — HLC —BKS002CD
TKWM4645E
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WW-44
HEADLAMP WASHER
TKWM4646E
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HEADLAMP WASHER
WW-45
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TKWM4647E
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WW-46
HEADLAMP WASHER
Terminals and Reference Values for BCMBKS002CE
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
WW-19, "
DATA MONITOR" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
2BRCombination
switch input 5ONLighting, turn, wiper switch
(Wiper intermittent dial
position 4)OFF Approx. 0 V
Lighting switch
2ND position
Approx. 2.0 V
3R/YCombination
switch input 4ONLighting, turn, wiper switch
(Wiper intermittent dial
position 4)OFF Approx. 0 V
Lighting switch
2ND position
Approx. 1.0 V
5Y/BCombination
switch input 2ONLighting, turn, wiper switch
(Wiper intermittent dial
position 4)OFF Approx. 0 V
Front washer
switch ON position
Approx. 1.0 V
10 GHeadlamp
washer switch
signalON Headlamp washer switchON Approx. 0V
OFF
Approx. 1.2 V
11 VIgnition switch
(ACC)ACC — Battery voltage
PKIC4459J
PKIB4959J
PKIB4959J
PKIB4958J
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HEADLAMP WASHER
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34 L/WCombination
switch output 3ONLighting, turn, wiper switch
(Wiper intermittent dial
position 4)OFF
Approx. 7.2 V
Lighting switch
2ND position
Approx. 1.2 V
35 G/BCombination
switch output 2ONLighting, turn, wiper switch
(Wiper intermittent dial
position 4)OFF
Approx. 7.2 V
Lighting switch
2ND position
Approx. 1.2 V
36 G/WCombination
switch output 1ONLighting, turn, wiper switch
(Wiper intermittent dial
position 4)OFF
Approx. 7.2 V
Front washer
switch ON position
Approx. 1.2 V
38 RIgnition switch
(ON) ON — Battery voltage Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
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WW-48
HEADLAMP WASHER
Terminals and Reference Values for IPDM E/RBKS002CF
How to Proceed with Trouble DiagnosisBKS002CG
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-40, "
System Description" .
3. Perform the Preliminary Check. Refer to WW-49, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does headlamp washer operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
39 L CAN-H — — —
40 P CAN-L — — —
52 B Ground ON — Approx. 0 V
55 W/BBattery power
supplyOFF — Battery voltage Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
38 B Ground ON — Approx. 0 V
48 L CAN− H—— —
49 P CAN− L—— —
58 G/W Headlamp washer relay signal ONHeadlamp washer
switch positionOFF Battery voltage
ON Approx. 0 V
60 B Ground ON — Approx. 0 V
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HEADLAMP WASHER
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Preliminary CheckBKS002CH
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to WW-43, "Wiring Diagram — HLC —" .
OK or NG
OK >> GO TO 2
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. 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.
BCMBattery M
Ignition switch ACC or ON position 6
Ignition switch ON or START position 1
Headlamp washer relay Battery J
Terminals Ignition switch position
(+)
(-) OFF ACC ON
BCM
connectorTe r m i n a l
M311
GroundApprox. 0 VBattery
voltageBattery
voltage
38 Approx. 0 V Approx. 0 VBattery
voltage
M4 55Battery
voltageBattery
voltageBattery
voltage
PKIC9884E
BCM connector Terminal
GroundContinuity
M4 52 Yes
SKIB5125E