Yamaha DT125RE 2005 Service Manual page 288

3. Front brake switch
• Disconnect the front brake switch coupler
from the wire harness.
• Connect the pocket tester (Ω 1) to the
brake switch coupler.
Positive tester probe
Negative tester probe
Terminal
• Check the brake switch for continuity.
Switch Good
position condition
Front brake
applied
Front brake
not applied
k:Continuity
X: No continuity
• Is the front brake switch OK?
YES
Replace the front
brake switch.
Brown Terminal
Green/Yellow
Bad
condition
k k
X X
k k
X X
NO
SIGNAL SYSTEM
4. Rear brake switch
• Disconnect the front brake switch coupler
from the wire harness.
• Connect the pocket tester (Ω 1) to the
brake switch coupler.
Positive tester probe
Terminal
Negative tester probe
Terminal
• Check the brake switch for continuity.
Switch
position
Rear brake
applied
Rear brake
not applied
k:Continuity
• Is the rear brake switch OK?
YES
EAS00795
5. Wiring
• Check the entire signal system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the signaling system's wiring properly
connected and without defects?
YES
Check the condition of
each of the signaling
system's circuits. Refer
to "CHECKING THE
SIGNALING SYSTEM".
8-31
ELEC
Brown
Green/Yellow
Good Bad
condition condition
k
X X
k
X X
X: No continuity
NO
Replace the rear
brake switch.
NO
Properly connect or
repair the signaling
system's wiring.
k
k