Yamaha RS90K, Service Manual

Page: 704 / 841

8-37
– +
ELEC
GRIP WARMER SYSTEM
TROUBLESHOOTING
Check the main fuse, ignition fuse, and signal fuse.
Refer to “FUSE INSPECTION” in CHAPTER 2.
Check the battery.
Refer to “BATTERY INSPECTION” in CHAPTER 2.
Check the stator coil.
Refer to “CHARGING SYSTEM”.
Check the main switch.
Refer to “IGNITION SYSTEM”.
Check the grip and thumb warmer.
Check the grip and thumb warmer adjustment
switch.
Check the load control relay.
Refer to “IGNITION SYSTEM”.
Check the grip warmer system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
Correct the connection and/or replace the rectifier/
regulator and/or ignitor unit.
GRIP WARMER AND THUMB WARMER DO NOT OPERATE.
OK
FAULTY Replace the main fuse, ignition fuse, and/or signal
fuse.
OK
OUT OF SPECIFICATION Replace and/or charge the battery.
Refer to “BATTERY INSPECTION” in CHAPTER
2.
OK
OUT OF SPECIFICATION Replace the stator coil assembly.
OK
NO CONTINUITY Replace the main switch.
OK
NO CONTINUITY Replace the grip and/or thumb warmer.
CORRECT
NO CONTINUITY Replace the left handlebar switch and/or right
handlebar switch.
OK
FAULTY Replace the load control relay.
OK
FAULTY
Properly connect or repair the grip warmer sys-
tem’s wiring.