Lighting System Check - Yamaha Scorpio Service Manual

LIGHTING SYSTEM CHECK

1.Headlight and high beam indicator light do not come on.
1.Bulb and bulb socket
Check the bulb and bulb socket for continu-
G
ity.
Refer to the "CHECKING OF BULBS" sec-
tion.
2.Voltage
Connect the pocket tester (DC 20 V) to the
G
headlight and high beam indicator light
leads.
Headlight:
Tester (+) lead →
Yellow 2 or Green 1 lead
Tester (–) lead → Black 3 lead
High beam indicator light:
Tester (+) lead → Yellow 4 lead
Tester (–) lead → Black 5 terminal
È
When dimmer switch is "LO" position.
É
When dimmer switch is "HI" position.
Start the engine.
G
Turn the lights switch to "ON".
G
Turn the dimmer switch to "LO" or "HI" posi-
G
tion.
Check for voltage (12 V) on the "Green"
G
and "Yellow" lead at bulb socket connector.
This circuit is good.
CONTINUITY
MEETS SPECIFI-
CATION (12 V)
7 - 31
LIGHTING SYSTEM
NO CONTINUITY
Bulb and/or bulb socket are faulty, replace.
Headlight
High beam indicator light
OUT OF SPECIFICATION
Wiring circuit from main switch to bulb socket
connector is faulty, repair.
– +
ELEC