Yamaha SXV70SJ Supplementary Service Manual - Elec
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ELEC
SIGNAL SYSTEM
TROUBLESHOOTING
BRAKE LIGHT DOES NOT COME ON.
Check the tail/brake light bulb.
Refer to “LIGHTING SYSTEM”.
OK
NO CONTINUITY
Replace the bulb.
For VX700DX/VT700:
Check the main fuse,
“IGNITION” fuse and “TAIL” fuse.
Refer to “FUSE INSPECTION” in CHAPTER 2.
OK
FAULTY
Replace the main fuse, “IGNITION” fuse and/or “TAIL”
fuse.
For VX700DX/VT700:
Check the battery.
Refer to “BATTERY INSPECTION” in CHAPTER 2.
OK
OUT OF SPECIFICATION
Replace and/or charge the battery.
Refer to “BATTERY CHARGING” in CHAPTER 2.
For VX700/SX700/MM700:
Check the condenser.
Refer to “IGNITION SYSTEM”.
OK
OUT OF SPECIFICATION
Replace the condenser.
Check the stator coil and pickup coil.
Refer to “IGNITION SYSTEM”.
OK
OUT OF SPECIFICATION
Replace the stator coil assembly.
Check the main switch.
Refer to “IGNITION SYSTEM”.
OK
FAULTY
Replace the main switch.
Check the brake light switch.
OK
FAULTY
Replace the brake light switch.
Check the load control relay.
Refer to “IGNITION SYSTEM”.
OK
FAULTY
Replace the load control relay.
Correct the connection and/or
replace the rectifier/regulator
and/or CDI unit.