Yamaha TT600R Service Manual page 359

2. The rear stop light fails to turn on.
1. Bulb and bulbholder.
•
Check the continuity of the bulb and bulb-
holder.
Refer to "BULB INSPECTION" section.
2. Brake switch.
•
Disconnect the brake switch cables and
the connector from the wire harness.
•
Connect the pocket tester (Ω x 1) to the
brake switch terminals.
•
Check the switch component for conti-
nuity between "Green/Yellow (1)" and
"Brown (2)", or "Black (3)" and "Black (4)".
Refer to "SWITCH CHECK" section.
A
B
[A] Front brake switch
[B] Rear brake switch
CONTINUITY
Br G/Y
OFF (Free)
ON (Pull in)
Br G/Y RW
1
2
B B
ON (Step down)
OFF (Free)
B B
4
G/Y Br
*
SIGNAL SYSTEM
DISCONTINUITY
Replace the bulb and/or bulbholder.
3
INCORRECT
The brake switch is defective. Replace.
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ELEC