Yamaha XSR 900 2022 Service Manual page 614

Ground short circuit check "A"
Between ECU coupler "2" and ground
Lines short circuit check "B"
Throttle servo motor coupler "1"
ECU coupler "2"
A
2
Y/R P/B
Lg/R L/B
R/L G/Y
R/G Y/R Y/B L/W
Is resistance ∞ Ω?
YES
→ Go to step 5.
NO
a. Replace the wire harness.
b. Turn the main switch to "ON", and then check 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 step 5.
5. Defective throttle bodies.
• Check the throttle bodies.
Refer to "CHECKING THE THROTTLE SERVO MOTOR" on page 8-48.
Is check result OK?
YES
→ Go to step 6.
NO
a. Replace the throttle bodies.
Refer to "REPLACING THE THROTTLE BODIES" on page 7-10.
b. Turn the main switch to "ON", and then check 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 step 6.
O/G Gy/R O
G/B R/B B
B
R/L B/W B/W
yellow/red–ground
light green/red–ground
red/blue–ground
yellow/red–any other coupler terminal
light green/red–any other coupler terminal
yellow/red–any other coupler terminal
light green/red–any other coupler terminal
red/blue–any other coupler terminal
B
1
Y/R Lg/R
2
Y/R P/B
Lg/R L/B
R/L G/Y
R/G Y/R Y/B L/W
9-208
O/G Gy/R O
G/B R/B B
B
R/L B/W B/W
P0638