Yamaha XVS1100(L) Service Manual page 345

2. Speed sensor
CIRCUIT DIAGRAM
Ignitor unit
16
Speed sensor
19
1. Wire harness
S Check the wire harness for continuity.
Refer to "CIRCUIT DIAGRAM".
S Is the wire harness OK?
YES
2. Speed sensor
S Place the motorcycle on a suitable stand so
that the rear wheel is elevated.
S Connect the pocket tester (DC 20V) to the
speed sensor connector.
Tester (+) lead ! White
Tester (–) lead ! Body earth
NO
Repair or replace the
wire harness.
terminal
1
SELF-DIAGNOSIS
S Set the main switch to "ON".
S Turn the rear wheel slowly.
S Check the tester voltage (0V - 5V - 0V).
S Is the speed sensor OK?
YES
Replace the ignitor
unit.
7-50
ELEC
NO
Replace the speed
sensor.