Yamaha R15 2022, Service Manual

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FUEL INJECTION SYSTEM TROUBLESHOOTING
– + ELEC
3-1
1. Throttle body sensor assembly
2. Intake air temperature sensor
3. ECU
4. Sensor output lead
5. Sensor ground lead
3-2 Disconnect the ECU coupler from the ECU.
Disconnect the throttle body sensor assembly sensor coupler from the throttle body.
3-3 [For P0112] Ground short circuit
Between intake air temperature sensor coupler and ground: brown/white–ground
If there is continuity, replace the wire harness.
3-4 [For P0113] Open circuit
Between intake air temperature sensor coupler and ECU coupler: brown/white–brown/white
If there is no continuity, replace the wire harness.
Fault code No. P0112, P0113
Item
[P0112] Intake air temperature sensor: short to ground circuit is de-
tected.
[P0113] Intake air temperature sensor: open or short to power circuit
is detected.
1
2
3
4
5
L
P W /
B L /
Br/W
L
P W /
B L /
Br/W
Y/W Y/W
Br/W P/W L Y/W B/L
B
Ch Y/B B/R R/W L/G R/B P/W Or/B W/Y W/R Y B/L V
G Br R Lg/L W G/R Y/G Y/L L B B/L Y/R
B/Y L Lg/W W/B B/L B/W Gy/G Y/W B/L P/B Or B/L Br/W
Y/W
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