Yamaha YZF-R1S, Service Manual

Page: 433 / 457

8-40
SIGNALING SYSTEM
ELEC
YES NO
Replace the starting
circuit cut-off relay.
YES NO
4. Voltage
S
Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness side)
as shown.
The wiring circuit
from the main switch
to the meter assem-
bly coupler is faulty
and must be re-
paired.
Positive tester probe
!
brown
Negative tester probe
!
ground
1
S
Turn the main switch to “ON”.
S
Measure the voltage (DC 12 V) of brown
at the meter assembly coupler (wire harness
side).
S
Is the voltage within specification?
This circuit is OK.
S
Are the tester readings correct?
YES NO
1. Oil level warning light (LEDs)
S
Check the oil level warning light for continu-
ity.
When the main switch is turn to “ON”, the oil
level warning light is come on.
S
Are the oil level warning light OK?
Replace the meter
assembly.
EAS00802
5. The oil level warning light fails to come on.
YES NO
2. Oil level switch
S
Drain the engine oil and remove the oil level
switch from the oil pan.
S
Connect the pocket tester (
Ω
100) to the
oil level switch as shown.
Replace the oil level
switch.
Positive tester probe
!
Connector (white)
Negative tester probe
!
Body ground
1
1 2
S
Measure the oil level switch resistance.
Oil level switch resistance
114
X
126
Ω
at 20
_
C (68
_
F)
484
X
536
Ω
at 20
_
C (68
_
F)
1
2
S
Is the oil level switch OK?
2
When you switch the positive and negative
tester probes, the readings in the above
chart will be reversed.
NOTE:
1