Signal System Check - Yamaha LB50IIAC Service Manual

EB806020
SIGNAL SYSTEM CHECK
1.lf the horn fails to sound:
j
1.Horn switch
• Disconnect the left handlebar switch
coupler from the wire harness.
• Check for continuity as follows:
Pink G) - Black
0
..£i.
CONTINUITY
2.Voltage
• Connect the pocket tester (DC 20 V) to
the horn lead.
Tester(+) lead-; Brown lead G)
Tester (-) lead -; Frame ground
• Turn the main switch to "ON".
• Check the voltage (6 V) of the "Brown"
lead at the horn terminal.
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MEETS
"7
SPECIFICATION
3.Horn
• Disconnect the "Pink" lead at the horn
terminal.
• Connect a jumper lead G) to the horn ter-
minal and ground the jumper lead.
• Turn the main switch to "ON".
- 150-
p
B
OFF
PUSH
2
NO CONTINUITY
I
Replace the left handlebar switch .
r' r'
Be P
0
OUT OF SPECIFICATION
i
The wiring circuit from the main switch to
the horn terminal is faulty, repair it.