Yamaha XT660R Service Manual page 446

EAS00835
TROUBLESHOOTING
The fuel level warning light starts to indi-
cates the self-diagnosis sequence.
Check:
1. fuel sender (thermistor)
NOTE:
_
• Before troubleshooting, remove the following
part(s):
1. seat
2. side panels (left and right)
3. fuel tank side covers (left and right)
4. fuel tank
• Troubleshoot with the following special
tool(s).
Pocket tester
90890-03112
SELF-DIAGNOSIS
EAS00838
1. Fuel sender (thermistor)
CIRCUIT DIAGRAM
B
L/G
L/G
( BLUE )
B B
( BLUE )
( DARK GREEN )
B
Br
K Fuel pump
Y Multifunction meter
EAS00841
1. Fuel level warning light LED
• Check the LED of the fuel level warning
light.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
• Is the fuel level warning light LED OK?
EAS00843
2. Wire harness
• Check the wire harness for continuity.
Refer to "CIRCUIT DIAGRAM".
• Is the wire harness OK?
8 - 64
ELEC
R/L G/W
G/W B
B
R/L
B B
R/W
R/G
G/W
Y
Ch
G
G/L
R/W G/L Dg
YES
Replace the meter
assembly.
YES
Repair or replace the
wire harness.
– +
Lg
Y/L
B/W
Lg B/W
NO
NO