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LT-6
HEADLAMP -CONVENTIONAL TYPE-
lto combination meter terminal 16.
Ground is supplied at all times
lto BCM terminal 55 and
lto combination meter terminal 23
lthrough grounds M21, M80 and M83,
lto IPDM E/R terminals 38 and 59
lthrough grounds E21, E41 and E61.
Low Beam Operation
With the lighting switch in 2ND position, the BCM receives input requesting the headlamps to illuminate. This
input is communicated to the IPDM E/R through the CAN communication. The CPU of the IPDM E/R controls
the headlamp low relay coil. When energized, this relay directs power
lthrough 15A fuse (No. 41, located in IPDM E/R)
lthrough IPDM E/R terminal 54
lto front combination lamp RH terminal 1,
lthrough 15A fuse (No. 40, located in IPDM E/R)
lthrough IPDM E/R terminal 52
lto front combination lamp LH terminal 1.
Ground is supplied
lto front combination lamp RH and LH terminals 3
lthrough grounds E21, E41 and E61.
With power and ground supplied, low beam headlamps illuminate.
High Beam Operation/Flash-to-Pass Operation
With the lighting switch in 2ND position and placed in HIGH or PASS position, the BCM receives input request-
ing the headlamp high beams to illuminate. This input is communicated to the IPDM E/R through the CAN
communication. The CPU of the IPDM E/R controls the headlamp high relay coil. When energized, this relay
directs power
lthrough 10A fuse (No. 34, located in IPDM E/R)
lthrough IPDM E/R terminal 56
lto front combination lamp RH terminal 2,
lthrough 10A fuse (No. 35, located in IPDM E/R)
lthrough IPDM E/R terminal 55
lto front combination lamp LH terminal 2.
Ground is supplied
lto front combination lamp RH and LH terminals 3
lthrough grounds E21, E41 and E61.
With power and ground supplied, the high beam headlamps illuminate.
Combination meter that received high beam request signal by BCM through the CAN communication makes a
high beam indicator lamp turn on in combination meter.
FRIENDLY LIGHTING FUNCTION
This function starts timer function of BCM by operating passing switch, and illuminates headlamps (LOW
beam) for a given length of time.
Headlamps (LOW beam) stay ON for a given length of time by operating passing switch when ignition switch is
OFF and lighting switch is OFF.
Headlamps (LOW beam) stays ON for two minutes at a maximum by operating passing switch repeatedly.
CONSULT-II is capable of setting a lighting time. Refer toLT- 1 6 , "
WORK SUPPORT".
CAN Communication System DescriptionEKS00P7J
Refer toLAN-23, "CAN COMMUNICATION".
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HEADLAMP -CONVENTIONAL TYPE-
LT-7
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SchematicEKS00P7K
MKWA3667E
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LT-8
HEADLAMP -CONVENTIONAL TYPE-
Wiring Diagram - H/LAMP -
EKS00P7L
MKWA3553E
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HEADLAMP -CONVENTIONAL TYPE-
LT-9
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MKWA3554E
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LT-10
HEADLAMP -CONVENTIONAL TYPE-
MKWA3555E
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HEADLAMP -CONVENTIONAL TYPE-
LT-11
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MKWA3556E
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LT-12
HEADLAMP -CONVENTIONAL TYPE-
Terminals and Reference Value for BCM
EKS00P7M
Terminals and Reference Values for IPDM E/REKS00P7N
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
3 Y Ignition switch (ON) ON — Battery voltage
6 G Combination switch output 3 ONLighting, turn, wiper OFF
Wiper dial position 4
7 GR Combination switch output 4 ONLighting, turn, wiper OFF
Wiper dial position 4
8 LG Combination switch output 1 ONLighting, turn, wiper OFF
Wiper dial position 4
9 BR Combination switch output 2 ONLighting, turn, wiper OFF
Wiper dial position 4
10 O Combination switch output 5 ONLighting, turn, wiper OFF
Wiper dial position 4
21 P CAN-L—— —
22 L CAN-H—— —
36 P Combination switch input 5 ONLighting, turn, wiper OFF
Wiper dial position 4
Approx. 0V 37 L Combination switch input 2 ONLighting, turn, wiper OFF
Wiper dial position 4
38 V Combination switch input 3 ONLighting, turn, wiper OFF
Wiper dial position 4
39 SB Combination switch input 4 ONLighting, turn, wiper OFF
Wiper dial position 4
40 R Combination switch input 1 ONLighting, turn, wiper OFF
Wiper dial position 4
55 B Ground ON — Approx. 0V
57 W Battery power supply (fusible link) OFF — Battery voltage
PKIB4958J
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
38 B Ground ON — Approx. 0V
39 L CAN-H—— —
40 P CAN-L—— —
52 P Headlamp low (LH) ONLighting switch
2ND positionOFF Approx. 0V
ON Battery voltage
54 R Headlamp low (RH) ONLighting switch
2ND positionOFF Approx. 0V
ON Battery voltage
55 G Headlamp high (LH) ONLighting switch
HIGH or PASS
positionOFF Approx. 0V
ON Battery voltage
56 L Headlamp high (RH) ONLighting switch
HIGH or PASS
positionOFF Approx. 0V
ON Battery voltage
59 B Ground ON — Approx. 0V
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HEADLAMP -CONVENTIONAL TYPE-
LT-13
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How to Proceed With Trouble DiagnosisEKS00P7O
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer toLT- 5 , "
System Description".
3. Perform the Preliminary Check. Refer toLT-13, "
Preliminary Check".
4. Check symptom and repair or replace the cause of malfunction.
5. Does the headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. INSPECTION END
Preliminary CheckEKS00P7P
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSES OR FUSIBLE LINK
Check for blown fuses or fusible link.
Refer toLT- 8 , "Wiring Diagram - H/LAMP -".
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 toPG-4, "
POWER SUPPLY ROUTING CIRCUIT".
Unit Power source Fuse and fusible link No.
BCMBattery G
Ignition switch ON or START position 1
IPDM E/R Battery34
35
40
41
52
53
Combination meterBattery 19
Ignition switch ON or START position 14