Sakai R2-4, Shop Manual

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10-039
TROUBLESHOOTING
2-6. Lighting
Check following items before troubleshooting.
No blown fuse and power is applied up to fuses.
2-6-1. Head lamp, side marker lamp, tail lamp and license lamp do not light 1/2
Reference Fig.: 2-6-1
Check point Check/Cause Action
1. Battery Measure battery voltage or specific gravity.
Standard voltage : 12 V or more
Standard gravity : 1.26 or more
If value is below standard, battery capacity is insufficient.
•
•
Charge or replace
battery.
2. Each Bulb Check that none of lamp bulbs is burned out or has a
contact failure.
Bulb is faulty or poorly connected.
•
•
Replace each bulb.
3. Lighting Switch (1) when starter switch is ON, measure voltage between
lighting switch terminal 1 and 4 inlet wire WG and
chassis ground.
Standard voltage : 12 V or more
(2) when starter switch is ON and lighting switch is “ ”,
measure voltage between lighting switch terminal 3
outlet wire RL and chassis ground.
Standard voltage : 12 V or more
(3) when starter switch is ON and lighting switch is “
”,
measure voltage between lighting switch terminal 5
outlet wire Lg and chassis ground.
Standard voltage : 12 V or more
If above item (1) is OK and item (2) or (3) is NG, lighting
switch is faulty.
•
Replace lighting switch.
4. Lighting Relay (1) when starter switch is ON and lighting switch is “
”,
measure voltage between lighting relay terminal 1 inlet
wire Lg and chassis ground.
Standard voltage : 12 V or more
(2) when starter switch is ON and lighting switch is “
”,
measure voltage between lighting relay terminal 3 inlet
wire WG and chassis ground.
Standard voltage : 12 V or more
(3) when starter switch is ON and lighting switch is “
”,
measure voltage between lighting relay terminal 5 outlet
wire RY and chassis ground.
Standard voltage : 12 V or more
If above items (1) and (2) are OK and item (3) is NG,
lighting relay is faulty.
•
Replace lighting relay.
•