Yamaha TT600R Service Manual page 364

4. The "N" neutral light fails to turn on.
1. Bulb and bulbholder.
•
Check the continuity of the bulb and bulb-
holder.
Refer to "BULB INSPECTION" section.
2. Neutral switch.
•
Disconnect the neutral switch cable from
the wire harness.
•
Connect the pocket tester (Ω x 1) to the
neutral switch cables.
•
Check the switch component for continuity
between "Sky blue (1)" and "earth".
Refer to "SWITCH CHECK" section.
3. Voltage.
•
Connect the pocket tester (DC 20V) to the
bulbholder connector.
Tester terminal (+)
Tester terminal (–)
CONTINUITY
Sb
In gear
Neutral
Sb
1
CORRECT
Brown cable (1)
Earth
1
Br Y BrB
LR B GB
LR B GB
Br Y BrB
SIGNAL SYSTEM
DISCONTINUITY
Replace the bulb and/or bulbholder.
INCORRECT
The neutral switch is defective. Replace.
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ELEC