Yamaha SR400 2014 Service Manual page 335

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TROUBLESHOOTING
• Poor contacts (main or rear brake light switch)
• Burnt-out tail/brake light bulb
Burnt-out tail/brake light bulb
• Wrong tail/brake light bulb
• Faulty battery
• Faulty rectifier/regulator
• Improperly grounded circuit
• Faulty main switch
• Incorrectly adjusted rear brake light switch
• Tail/brake light bulb life expired
Turn signal does not come on
• Faulty turn signal switch
• Faulty turn signal/hazard relay
• Burnt-out turn signal bulb
• Incorrect connection
• Disconnected or damaged wire harness
• Improperly grounded circuit
• Faulty battery
• Blown, damaged or incorrect fuse
Turn signal blinks slowly
• Faulty turn signal/hazard relay
• Faulty main switch
• Faulty turn signal switch
• Incorrect turn signal bulb
Turn signal blinks quickly
• Incorrect turn signal bulb
• Faulty turn signal/hazard relay
• Burnt-out turn signal bulb
Horn does not sound
• Damaged or faulty horn
• Faulty main switch
• Faulty horn switch
• Faulty battery
• Blown, damaged or incorrect fuse
• Faulty wire harness
8-4

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Sr400e 2014

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