Yamaha YZF-R1 2020 Service Manual page 659

Between cylinder-#3 ignition coil coupler and ECU
coupler
Between cylinder-#3 ignition coil coupler and han-
dlebar switch (right) coupler
Is resistance 0 Ω?
YES
→ Go to "Short circuit check".
NO
a. Replace the wire harness.
b. Start the engine and let it idle for approximately 5 seconds.
c. Check the condition of the DTC using the malfunction mode of the YDT.
Is it in the "Recovered" condition?
YES
→ Go to step 7, and complete the service.
NO
→ Go to "Short circuit check".
• Short circuit check
TIP
Disconnect the ECU related connectors before checking.
Refer to "PARTS CONNECTED TO THE ECU" on page 9-3.
Ground short circuit check "A"
Between cylinder-#3 ignition coil coupler "1" and
ground
Lines short circuit check "B"
Cylinder-#3 ignition coil coupler
ECU coupler "2"
Handlebar switch (right) coupler "3"
A
1
O/G
2
Y / R P / W P / B Gy / G O / G Gy / R O
Lg / R L / R O / B L / B G / B R / B B
R / L G / Y Br / R Br / B Br / Y Sb / W W / L B
R / G Y / B L / W Y / L Sb R / L B / W B / W
9-164
orange/green–orange/green
red/white–red/white
3
1
O/G
orange/green–ground
red/white–ground
orange/green–any other coupler terminal
red/white–any other coupler terminal
orange/green–any other coupler terminal
red/white–any other coupler terminal
B
1
2
O/G
Y / R
Lg / R
R / L
R / G
P0353
3
P / W P / B Gy / G O / G Gy / R O
L / R O / B L / B G / B R / B B
G / Y Br / R Br / B Br / Y Sb / W W / L B
Y / B L / W Y / L Sb R / L B / W B / W