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AUTO LIGHT SYSTEMLT-59
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Optical sensor System InspectionINFOID:0000000001381750
1.CHECK OPTICAL SENSOR INPUT SIGNAL
CONSULT-III DATA MONITOR
1. Turn ignition switch ON.
2. Select “OPTICAL SENSOR” of BC M (HEAD LAMP) data monitor item.
3. Turn the lighting switch AUTO.
4. With the optical sensor illuminat ing, check the monitor status.
CAUTION:
Optical sensor must be securely subject ed to work lamp light. If optical sensor is insufficiently illumi-
nated, the measured value may not satisfy the standard.
CHECK BCM
1. Turn ignition switch ON.
2. Check voltage between BCM harness connector M3 terminal 14
and ground.
CAUTION:
Optical sensor must be securely su bjected to work lamp light. If
optical sensor is insufficiently illuminated, the measured value
may not satisfy the standard.
OK or NG
OK >> INSPECTION END
NG >> GO TO 2.
2.CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and optical sensor connector.
3. Check continuity (open circuit) between BCM harness connector M3 terminal 17 and optical sensor harness connector M37 ter-
minal 1.
4. Check continuity (short circuit) between BCM harness connector M3 terminal 17 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK OPTICAL SENS OR SIGNAL CIRCUIT
Illuminated
OPTICAL SENSOR : 3.1 V or more
Not illuminated
OPTICAL SENSOR : 0.6 V or less
Illuminated
OPTICAL SENSOR : 3.1 V or more
Not illuminated
OPTICAL SENSOR : 0.6 V or less
PKIB6163E
17 – 1 : Continui
ty should exist.
17 – Ground : Continuity should not exist.
SKIA5891E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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Page 3162 of 3924

LT-60
< SERVICE INFORMATION >
AUTO LIGHT SYSTEM
1. Check continuity (open circuit) between BCM harness connectorM3 terminal 14 and optical sensor harness connector M37 ter-
minal 2.
2. Check continuity (short circuit) between BCM harness connector M3 terminal 14 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK OPTICAL SENSOR GROUND CIRCUIT
1. Check continuity (open circuit) between BCM harness connector M3 terminal 18 and optical sensor harness connector M37 ter-
minal 3.
2. Check continuity (short circuit) between BCM harness connector M3 terminal 18 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5.CHECK OPTICAL SENSOR VOLTAGE
1. Connect BCM connector.
2. Turn ignition switch ON.
3. Check voltage between BCM harness connector M3 terminal 17 and ground.
OK or NG
OK >> Replace optical sensor.
NG >> Replace BCM. Refer to BCS-13, "
Removal and Installa-
tion of BCM".
Removal and Installation of Optical SensorINFOID:0000000001328322
REMOVAL
1. Insert a screwdriver or similar tool and remove front defroster
grill (LH). Refer to IP-11, "
Removal and Installation".
2. Disconnect optical sensor connector.
3. Remove optical sensor.
INSTALLATION
Installation is the reverse order of removal. 14 – 2 : Continuity should exist.
14 – Ground : Continuity should not exist.
SKIA5892E
18 – 3 : Continuity should exist.
18 – Ground : Continuity should not exist.
SKIA5893E
17 – Ground : Approx. 5 V
SKIA5894E
PKIA5275E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
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HEADLAMP AIMING CONTROLLT-61
< SERVICE INFORMATION >
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HEADLAMP AIMING CONTROL
SchematicINFOID:0000000001328323
TKWH0337E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
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LT-62
< SERVICE INFORMATION >
HEADLAMP AIMING CONTROL
Wiring Diagram - H/AIM -
INFOID:0000000001328324
TKWM4300E
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HEADLAMP AIMING CONTROLLT-63
< SERVICE INFORMATION >
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TKWM4301E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
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LT-64
< SERVICE INFORMATION >
HEADLAMP AIMING CONTROL
Removal and Installation
INFOID:0000000001328325
REMOVAL
TKWM4302E
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HEADLAMP AIMING CONTROLLT-65
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1. Remove combination meter. Refer to DI-22, "Removal and
Installation of Combination Meter".
2. Remove screws for removing headlamp aiming switch from meter housing.
3. Remove screws and then remove headlamp aiming switch.
INSTALLATION
Installation is the reverse order of removal.
Switch Circuit InspectionINFOID:0000000001328326
Using a circuit tester, check resistance between the headlamp aim-
ing switch connector terminals in each operation status of the aiming
switch.
PKIB3630E
PKIC1215E
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Page 3168 of 3924

LT-66
< SERVICE INFORMATION >
FRONT FOG LAMP
FRONT FOG LAMP
Component Parts and Harness Connector LocationINFOID:0000000001328327
System DescriptionINFOID:0000000001328328
Control of the front fog lamps is dependent upon the position of the combination switch (lighting switch). The
lighting switch must be in the 2ND position or AUTO position (headlamp is ON) for front fog lamp opera-
tion.When the lighting switch is placed in the front fog lamp on position the BCM (body control module)
receives input signal requesting the front fog lamps to illuminate. When the headlamps are illuminated, this
input signal is communicated to the IPDM E/R (inte lligent power distribution module engine room) through the
CAN communication lines. The CPU (central processing unit) located in the IPDM E/R controls the front fog
lamp relay coil. When activated, this relay directs power to the front fog lamps.
OUTLINE
Power is supplied at all times
to ignition relay, located in IP DM E/R, from battery direct,
through 15A fuse (No. 88, located in IPDM E/R)
to front fog lamp relay, located in IPDM E/R,
through 15A fuse (No. 78, located in IPDM E/R)
to CPU located in IPDM E/R,
through 10A fuse (No. 71, located in IPDM E/R)
to CPU located in IPDM E/R.
through 50A fusible link (letter M, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 15A fuse [No. 22, located in fuse block (J/B)]
to BCM terminal 42.
When ignition switch is in ON or START position, power is supplied
to ignition relay (located IPDM E/R)
through 15A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38.
When ignition switch is in ACC or ON position, power is supplied
through 10A fuse [No. 6, located in fuse block (J/B)]
to BCM terminal 11.
Ground is supplied
PKIB3475E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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