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HEADLAMP -CONVENTIONAL TYPE-
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HEADLAMP -CONVENTIONAL TYPE-PFP:26010
Component Parts and Harness Connector LocationEKS00P7H
System DescriptionEKS00P7I
The control of the headlamp system operation is dependent upon the position of the combination switch (light-
ing switch). When the lighting switch is placed in the 2ND position, the BCM (body control module) receives
input requesting the headlamps (and tail lamps) illuminate. This input is communicated to the IPDM E/R (intel-
ligent power distribution module engine room) through the CAN communication. The CPU (central processing
unit) of the IPDM E/R controls the headlamp high and headlamp low relay coils. When energized, these relays
direct power to the respective headlamps, which then illuminate.
OUTLINE
Power is supplied at all times
lto ignition relay (located in IPDM E/R)
lto headlamp high relay (located in IPDM E/R) and
lto headlamp low relay (located in IPDM E/R), from battery directly,
lthrough 50A fusible link (letter G, located in fuse and fusible link box)
lto BCM terminal 57,
lthrough 20A fuse (No. 52, located in IPDM E/R) and
lthrough 20A fuse (No. 53, located in IPDM E/R)
lto CPU (located in IPDM E/R),
lthrough 10A fuse (No. 19, located in fuse and fusible link box)
lto combination meter terminal 3.
With the ignition switch in the ON or START position, power is supplied
lto ignition relay (located in IPDM E/R),
lthrough 10A fuse [No. 1, located in fuse block (J/B)]
lto BCM terminal 3,
lthrough 10A fuse [No. 14, located in fuse block (J/B)]
PKIC1218E
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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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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