Head Lamp, Side Marker Lamp, Tail Lamp And License Lamp; Flood Lamp Does Not Light 1/2; Flood Lamp Does Not Light 2/2 - Sakai R2-4 Shop Manual

2-6-1. Head lamp, side marker lamp, tail lamp and license lamp do not light 2/2
Reference Fig.: 2-6-1
Check point
5. Lighting LO/HI Relay
6. Harness Connecting
Between Terminals

2-6-2. Flood lamp does not light 1/2

Reference Fig.: 2-6-1
Check point
1. Each Bulb
2. Flood Lamp Switch
3. Flood Lamp Relay
Check/Cause
(1) when starter switch is ON, lighting switch is "
turn signal switch is "Low-beam", measure voltage
between lighting LO/HI relay terminal a inlet wire Rw
and chassis ground.
There is no electricity in normal condition.
(2) when starter switch is ON and lighting switch is "
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 "Low-beam", measure voltage
between lighting LO/HI relay terminal f outlet wire RB
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.
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, measure voltage between
flood lamp switch terminal 1 inlet wire GR and chassis
ground.
Standard voltage : 12 V or more
(2) when starter switch is ON and flood lamp switch is ON,
measure voltage between flood lamp switch terminal 2
outlet wire Sb and chassis ground.
Standard voltage : 12 V or more
• If above item (1) is OK and item (2) is NG, flood lamp
switch is faulty.
(1) when starter switch is ON and flood lamp switch is ON,
measure voltage between flood lamp relay terminal 1
inlet wire Sb and chassis ground.
Standard voltage : 12 V or more
(2) when starter switch is ON and flood lamp switch is ON,
measure voltage between flood lamp relay terminal 3
inlet wire GR and chassis ground.
Standard voltage : 12 V or more
(3) when starter switch is ON and flood lamp switch is ON,
measure voltage between flood lamp relay terminal 5
outlet wire RG and chassis ground.
Standard voltage : 12 V or more
• If above items (1) and (2) are OK and item (3) is NG, flood
lamp relay is faulty.
TROUBLESHOOTING
Action
" and Replace lighting LO/HI
relay.
",
" and
Repair or replace
harness.
Action
Replace each bulb.
Replace flood lamp
switch.
Replace flood lamp relay.
10-041