Yamaha MT-09 2021 - Page 557

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P0122, P0123, P0222, P0223, P2135
TIP
Disconnect the ECU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ECU” on page 9-4.
Ground short circuit check “A”
Lines short circuit check “B”
Between throttle position sensor coupler “1” and
ground
[P0122, P0123, P0222, P0223, P2135] white–
ground
[P0122, P0222] blue–ground
[P0122, P0123, P0222, P0223, P2135] black–
ground
Throttle position sensor coupler “1”
[P0122, P0123, P0222, P0223, P2135] white–
any other coupler terminal
[P0123, P0223] black/blue–any other coupler
terminal
[P0122, P0222] blue–any other coupler terminal
[P0122, P0123, P0222, P0223, P2135] black–
any other coupler terminal
ECU coupler “2”
[P0122, P0123, P0222, P0223, P2135] white–
any other coupler terminal
[P0123, P0223] black/blue–any other coupler
terminal
[P0122, P0222] blue–any other coupler terminal
[P0122, P0123, P0222, P0223, P2135] black–
any other coupler terminal
Is resistance ∞ Ω?
YES
→ Go to step 4.
NO
a. Replace the wire harness.
b. Turn the main switch to “ON”, and then check the condition of the DTC using the malfunction
mode of the YDT.
BA
R/WBr/Y
LG
W/R
Y/R
W
Y
Br
B/L
Y/B
B
W/B
WL B/L BWL B/L B
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