Yamaha VINO YJ50RAP, Service Manual

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– +
ELEC
EAS00802
5. The oil level warning light fails to come on.
YES
NO
YES NO
YES
NO
1. Oil level warning light bulb and socket
• Check the oil level warning light bulb and
socket for continuity.
Refer to “CHECKING THE SWITCHES”.
• Are the oil level warning light bulb and
socket OK?
Replace the oil level
warning light bulb,
socket or both.
2. Oil level switch
• Remove the oil level switch from the oil
tank.
• Connect the pocket tester (
Ω ×
1) to the oil
level switch.
Positive tester probe
→
terminal
1
Negative tester probe
→
terminal
2
• Check the oil level switch for continuity.
• Hold the oil level switch in an upright posi-
tion
È
and let the float
3
go all the way
down
É
.
• Is the oil level switch OK?
Replace the oil level
switch.
1
2
3
3. Diode
• Remove the diode from the wire harness.
• Connect the pocket tester (
Ω ×
1) to the
diode terminals as shown.
• Check the diode for continuity as follows.
Tester positive probe
→
gray
1
Tester negative probe
→
gray/black
2
Continu-
ity
Tester positive probe
→
gray/black
1
Tester negative probe
→
gray
2
No Con-
tinuity
NOTE:
When you switch the tester’s positive and
negative probes, the readings in the above
chart will be reversed.
• Are the tester readings correct?
Replace the diode.
Gy/B
Gy
2
1
SIGNALING SYSTEM
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