Yamaha R15 2022 Service Manual page 396

FUEL INJECTION SYSTEM TROUBLESHOOTING
Fault code No.
Item
3-5 [For P0122] Open circuit
Between throttle position sensor coupler and ECU coupler: yellow/white–yellow/white
If there is no continuity, replace the wire harness.
3-6 [For P0123] Open circuit
Between throttle position sensor coupler and ECU coupler: black/blue–black/blue
If there is no continuity, replace the wire harness.
3-7 Disconnect the couplers from the parts that are connected to the ECU.
3-8 [For P0123] Short circuit
Between throttle position sensor output terminal (yellow/white) "a" of ECU coupler and any other
ECU coupler terminal "b"
If there is continuity, replace the wire harness.
P0122, P0123
[P0122] Throttle position sensor: open or short to ground circuit is
detected.
[P0123] Throttle position sensor: short to power circuit is detected.
Ch Y/B B/R R/W L/G R/B
Y/W
G Br R Lg/L W
B/Y L Lg/W W/B B/L B/W
Ch Y/B B/R R/W L/G R/B
Y/W
G Br R Lg/L W
B/Y L Lg/W W/B B/L B/W
Ch Y/B B/R R/W L/G R/B
G Br R Lg/L W
B/Y L Lg/W W/B B/L B/W
b
8-63
V P/W Or/B W/Y B/L W/R Y
Y/R G/R Y/G Y/L B/L L B
Br/W Gy/G Y/W B/L B/L P/B Or
B
V P/W Or/B W/Y B/L W/R Y
Y/R G/R Y/G Y/L B/L L B
Br/W Gy/G Y/W B/L B/L P/B Or
B
a
V P/W Or/B W/Y B/L W/R Y
Y/R G/R Y/G Y/L B/L L B
Br/W Gy/G Y/W B/L B/L P/B Or
B
ELEC – +