High-Beam Of Head Lamp Does Not Light - Sakai R2-4 Shop Manual

2-6-2. Flood lamp does not light 2/2
Reference Fig.: 2-6-1
Check point
4. Harness Connecting
Between Terminals

2-6-3. High-beam of head lamp does not light

Reference Fig.: 2-6-1
Check point
1. Each Bulb
2. Turn Signal Switch
(Light L-H Change
Switch)
3. Lighting LO/HI Relay
4. Harness Connecting
Between Terminals
Check/Cause
• Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
• If resistance is abnormal, harness is faulty.
Check/Cause
• Check that none of lamp bulbs is burned out or has a
contact failure.
• Bulb is faulty or poorly connected.
(1) when starter switch is ON and lighting switch is "
measure voltage between turn signal switch terminal
inlet wire RY and chassis ground.
Standard voltage : 12 V or more
(2) when starter switch is ON, lighting switch is "
turn signal switch is "High-beam", measure voltage
between turn signal switch terminal outlet wire RW and
chassis ground.
Standard voltage : 12 V or more
• If above item (1) is OK and item (2) is NG, turn signal
switch is faulty.
(1) when starter switch is ON, lighting switch is "
turn signal switch is "High-beam", measure voltage
between lighting LO/HI relay terminal a inlet wire Rw
and chassis ground.
Standard voltage : 12 V or more
(2) when starter switch is ON, lighting switch is "
turn signal switch is "High-beam", measure voltage
between lighting LO/HI relay terminal c inlet wire RY
and chassis ground.
Standard voltage : 12 V or more
(3) when starter switch is ON, lighting switch is "
turn signal switch is "High-beam", measure voltage
between lighting LO/HI relay terminal e outlet wire Rw
and chassis ground.
Standard voltage : 12 V or more
• If above items (1) and (2) are OK and item (3) is NG,
lighting LO/HI relay is faulty.
• Measure resistance of harness connecting between
terminals.
Standard resistance : 10 Ω or less
• If resistance is abnormal, harness is faulty.
TROUBLESHOOTING
Action
Repair or replace
harness.
Action
Replace each bulb.
", Replace turn signal
switch.
" and
"and Replace lighting LO/HI
relay.
" and
" and
Repair or replace
harness.
10-043