Yamaha YZF-R1 2020, Service Manual

Page: 643 / 822

P0204
9-148
5. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to “REPLACING THE ECU (Engine Control Unit)” on page 8-41.
6. Delete the DTC and check that the MIL goes off.
• Start the engine and let it idle for approximately 5 seconds.
• Confirm that the DTC has a condition of “Recovered” using the malfunction mode of the YDT, and
then delete the DTC.
ECU coupler “2” orange/black–any other coupler terminal
Relay unit coupler “3” red/blue–any other coupler terminal
Is resistance
∞ Ω
?
YES
→
Go to step 5.
NO
a. Replace the wire harness.
b. Execute the diagnostic mode. (Code D39)
Is it hear operating sound ?
YES
→
Go to step 6.
NO
→
Go to step 5.
L / R L / W R / W L / B L / Y B / Y Sb / W Sb
L / W Br / W L R / L R / W
Y / R
Lg / R
R / L
R / G Y / L Y / B B / W R / L B / W Sb
G / Y Sb / W Br / R Br / B
L / W
Br / Y W / L B
O P / W Gy / G
L / B G / B
O / G
R / B O / B L / R B
P / B Gy / R
R / LO / B R / LO / B
A B
1 2
3
1