Yamaha YZF-R1S Service Manual - Elec
8-54
SELF-DIAGNOSIS
ELEC
L/B B
Lg
B
B
G/W
B
R/L
Y/L
Y/B
R/G
Sb/W
W
G/W
G/W
R/L
B
R/W
Lg
Lg
B
Sb/W
Sb/W
A
Br
Br
A
R/G
R/G
B
B/R
B/R
B
Y/B
Y/B B
Y/L
Y/L B
G/W
G/W
A
G
Y
14
38
39
40
41
42
43
44
45
Repair or replace the
wire harness.
NO
1. Wire harness
S Check the wire harness for continuity.
Refer to “CIRCUIT DIAGRAM”.
S Is the wire harness OK?
YES
NO
2. Fuel pump thermistor
S Check the fuel pump thermistor for continuity.
Refer to “The fuel level warning light fails to
come on”.
S Is the fuel pump thermistor OK?
YES
Replace the fuel
pump.
Replace the multi-
function meter.
NOTE:
14
Fuel pump
45
Multi-function meter
TROUBLESHOOTING
The warning light starts to indicate the
self-diagnosis sequence.
Check:
1. fuel pump thermistor
2. oil level switch
SBefore troubleshooting, remove the following
part(-s):
1. seat
2. fuel tank
STroubleshoot with the following special
tool(-s).
Pocket tester
90890-03112, YU-3112
1. Fuel pump thermistor
CIRCUIT DIAGRAM