Checking The Signaling System - Yamaha XVS1100(L) Service Manual

EAS00796

CHECKING THE SIGNALING SYSTEM

1. The horn fails to sound.
1. Horn switch
S Check the forn switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the horn switch OK?
YES
2. Voltage
S Connect the pocket tester (DC 20 V) to the
horn connecter at the horn terminal as
shown.
Tester positive probe ! brown
Tester negative probe ! ground
Br
S Set the main switch to "ON".
S Measure the voltage (12 V) of brown at the
horn terminal.
S Is the voltage within specification?
YES
NO
Replace the left han-
dlebar switch.
1
P
NO
The wiring circuit
from the main switch
to the horn connecter
is faulty and must be
repaired.
SIGNALING SYSTEM
3. Horn
S Disconnect the black connector at the horn
terminal.
S Connect a jumper lead
and ground the jumper lead.
S Set the main switch to "ON".
S Does the horn sound?
Br
NO
4. Voltage
S Connect the pocket tester (DC 20 V) to the
horn connecter at the black terminal as
shown.
Tester positive probe ! black
Tester negative probe ! ground
Br
S Set the main switch to "ON".
S Measure the voltage (12 V) of black
horn terminal.
S Is the voltage within specification?
YES
Repair or replace the
horn.
7-34
ELEC
to the horn terminal
1
YES
The horn is OK.
1
P
1 at the
NO
Replace the horn.