Yamaha MBK X-MAX 300 2017 Service Manual page 351

Fault code No.
Item
3-5 [For P0118] Open circuit
Between coolant temperature sensor coupler and ECU coupler: black/blue–black/blue
If there is no continuity, replace the wire harness.
3-6 Disconnect the couplers from the parts that are connected to the ECU.
Refer to "Parts connected to the ECU" on page 8-35.
3-7 [For P0117, P0118] Short circuit
Between coolant temperature sensor output terminal (green/red) "a" of ECU coupler and any other
ECU coupler terminal "b".
If there is continuity, replace the wire harness.
4 Installed condition of coolant
temperature sensor.
5 Defective coolant temperature
sensor.
P0117, P0118
No normal signals are received from the coolant temperature sensor.
[P0117] Coolant temperature sensor: ground short circuit detected.
[P0118] Coolant temperature sensor: open or power short circuit de-
tected.
G/Y P
G/R B/L
Sb Gy
L/B
G/Y P L L
Sb Gy L/Y G/R
L/B Y/L B/W
b
Check for looseness or pinch-
ing.
Improperly installed sensor →
Reinstall or replace the sensor.
Refer to "CYLINDER HEAD" on
page 5-13.
Execute the diagnostic mode.
(Code No. 06)
When engine is cold:
Displayed temperature is close
to the ambient temperature.
The displayed temperature is
not close to the ambient tem-
perature. → Replace the cool-
ant temperature sensor.
Refer to "CYLINDER HEAD" on
page 5-13.
8-46
FUEL INJECTION SYSTEM
L L R/W W Br/R B/L O/B B/L Y/B B/W
L/Y G/R Y Y/G L/R B/L W/Y
Y/L B/W P/W Br/W Gy/R R/B B/L W/R B W/B O
a
R/W W Br/R B/L O/B B/L Y/B B/W
Y Y/G L/R B/L W/Y
Br/W Gy/R R/B B/L W/R B W/B O
P/W
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 5.
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 6.