Faulty Lighting Or Signaling System; Headlight Does Not Come On; Headlight Bulb Burnt Out; Tail/Brake Light Does Not Come On - Yamaha YP400T Service Manual

FAULTY LIGHTING OR SIGNALING SYSTEM

EAS00866
FAULTY LIGHTING OR SIGNALING SYSTEM

HEADLIGHT DOES NOT COME ON

• Wrong headlight bulb
• Too many electrical accessories
• Hard charging
• Incorrect connection
• Improperly grounded circuit
• Poor contacts (main switch)
• Burnt-out headlight bulb
• Faulty headlight relay (on/off)

HEADLIGHT BULB BURNT OUT

• Wrong headlight bulb
• Faulty battery
• Faulty rectifier/regulator
• Improperly grounded circuit
• Faulty main switch
• Headlight bulb life expired

TAIL/BRAKE LIGHT DOES NOT COME ON

• Too many electrical accessories
• Incorrect connection

TAIL/BRAKE LIGHT BULB BURNT OUT

• Faulty battery
• Incorrectly adjusted brake light switch(s)

TURN SIGNAL DOES NOT COME ON

• Faulty turn signal switch
• Faulty turn signal relay
• Burnt-out turn signal bulb
• Incorrect connection
• Damaged or faulty wire harness
• Improperly grounded circuit
• Faulty battery
• Blown, damaged or incorrect fuse

TURN SIGNAL BLINKS SLOWLY

• Faulty turn signal relay
• Faulty main switch
• Faulty turn signal switch
• Incorrect turn signal bulb

TURN SIGNAL REMAINS LIT

• Faulty turn signal relay
• Burnt-out turn signal bulb

TURN SIGNAL BLINKS QUICKLY

• Incorrect turn signal bulb
• Faulty turn signal relay
• Burnt-out turn signal bulb

HORN DOES NOT SOUND

• Improperly adjusted horn
• Damaged or faulty horn
• Faulty main switch
• Faulty horn switch
• Faulty battery
• Blown, damaged or incorrect fuse
• Faulty wire harness
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SHTG