Yamaha YZF-R1 2020 Service Manual page 582

Between steering damper solenoid coupler and en-
gine ground
Is resistance 0 Ω?
YES
→ Go to "Short circuit check".
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.
Is it in the "Recovered" condition?
YES
→ Go to step 6, 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 ECU coupler "1" and ground
Lines short circuit check "B"
ECU coupler
Steering damper solenoid coupler "2"
A
1
L/Y L
W W
B/G
B/L B
Is resistance ∞ Ω?
YES
→ Go to step 4.
1
L/Y L
W W
B/G
B/L B B/Y
Y/B R/W
L/G B/R
B B/G
B/Y W/Y
black–black
2
Y/B R/W
L/G B/R
B B/G
W/Y
yellow/black–ground
yellow/black–any other coupler terminal
yellow/black–any other coupler terminal
B
1
L/Y
W
B/G
B/L
9-87
L Y/B R/W
W L/G B/R 2
B B/G
B B/Y W/Y
C1000