Yamaha MBK X-MAX 300 2017 Service Manual page 348

Fault code No.
Item
3-7 [For P0112, P0113] Short circuit
Between intake air temperature sensor output terminal (brown/white) "a" of ECU coupler and any
other ECU coupler terminal "b".
If there is continuity, replace the wire harness.
4 Installed condition of throttle
body sensor assembly.
5 Defective intake air tempera-
ture sensor.
6 Malfunction in ECU.
7 Delete the fault code and check
that the engine trouble warning
light goes off.
P0112, P0113
No normal signals are received from the intake air temperature sen-
sor.
[P0112] Intake air temperature sensor: ground short circuit detected.
[P0113] Intake air temperature sensor: open or power short circuit
detected.
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 the throttle body.
Refer to "THROTTLE BODY" on
page 7-13.
Execute the diagnostic mode.
(Code No. 05)
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 throttle
body.
Refer to "REPLACING THE
THROTTLE BODY" on page
7-18.
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-128.
Confirm that the fault code has
a condition of "Recover" using
the Yamaha diagnostic tool, and
then delete the fault code.
8-43
FUEL INJECTION SYSTEM
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
P/W Br/W Gy/R R/B B/L W/R B W/B O
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.
Service is finished.