Yamaha 2005 BT1100 Supplementary Service Manual page 106

3. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness side)
as shown.
Tester positive probe
Tester negative probe
• Set the main switch to "ON".
• Measure the voltage (12 V) of Brown 1 and
Sky blue/White 2 at the meter assembly
coupler.
• Is the voltage within specification?
YES
This circuit is OK.
EASB0036
5. The oil level warning light fails to come on.
1. Oil level warning light bulb and socket
• Check the oil level warning light bulb and
socket for continuity.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS"
• Are the oil level warning light bulb and sock-
et OK?
YES
¡
Brown 1
¡
Sky Blue/White 2
NO
The wiring circuit
from the main switch
to the meter light bulb
coupler is faulty and
must be repaired.
NO
Replace the oil level
warning light bulb,
socket or both.
SIGNALING SYSTEM
2. Oil level switch
• Drain the engine oil and remove the oil level
switch from the oil pan.
• Check the oil level switch for continuity. Refer
to "CHECKING THE SWITCHES".
• Is the oil level switch OK?
YES
3. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness side)
as shown.
Tester positive probe
Tester negative probe
• Set the main switch to "ON".
• Measure the voltage (12 V) of Brown 1 and
Black/White 2 at the meter assembly coupler.
• Is the voltage within specification?
YES
This circuit is OK.
98
ELEC
NO
Replace the oil level
switch.
¡
Red/White 1
¡
Black/White 2
NO
The wiring circuit
from the main switch
to the meter assem-
bly coupler is faulty
and must be re-
paired.