Headlight Beam Level Control System Troubles - Lexus 2005 IS300 User Manual

Headlight does not come on.
Headlight does not come on with light control switch in HEAD.
Headlight does not go out with light control switch in OFF.
Headlight flickers.
Headlight is dark.
Taillight does not come on with light control switch in TAIL.
Taillight does not go out with light control switch in OFF.
Headlight does not come on with engine running and light control
switch in OFF.
HID type headlight:
HEADLIGHT BEAM LEVEL CONTROL SYSTEM
Symptom
Beam axis is not controlled. (It is not initialized.)
Headlight Beam Level Control System does not operate.
Beam axis is not controlled. (It is initialized.)
Headlight Beam Level Control System does not operate.
Controlled angle of head light is unusual.
(The angle is controlled.)
Beam axis position is not stable during driving.
BODY ELECTRICAL - TROUBLESHOOTING
1. Headlight Control Relay
2. Daytime Running Light Main Relay
3. Daytime Running Light No.2 Relay
4. Headlight Dimmer Switch
5. Light Control Switch
6. Wire Harness
7. Light Control ECU
8. Bulb
9. Combination Meter
1. Light Control Switch
2. Light Control ECU
3. Wire Harness
1. Headlight Control Relay
2. Light Control ECU
3. Wire Harness
1. Bulb
2. Light Control ECU
3. Wire Harness
1. Bulb
2. Light Control ECU
3. Wire Harness
1. Taillight Control Relay
2. Light Control Switch
3. Wire Harness
1. Taillight Control Relay
2. Light Control Switch
3. Wire Harness
1. ECU-B Fuse
2. GAUGE Fuse
3. Daytime Running Light Main Relay
4. Daytime Running Light No.2 Relay
5. Generator L Terminal
6. Parking Brake Switch
7. Wire Harness
8. Combination Meter
1. ECU-IG Fuse
2. Headlight Beam Level Control Actuator
3. Headlight Beam Level Control ECU
4. Wire Harness Side
1. Height Control Sensor
2. Headlight Beam Level Control ECU
3. Wire Harness Side
1. Height Control Sensor
2. Headlight Beam Level Control ECU
3. Headlights
4. Wire Harness Side
1. ABS System
2. Headlights
3. Wire Harness
Suspect Area
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2006