Yamaha XSR 900 2022 Service Manual page 613

Is check result OK?
YES
→ Go to step 4.
NO
a. Replace the electronic throttle valve fuse.
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 4.
4. Wire harness continuity.
• Disconnect the throttle servo motor coupler "1", ECU coupler "2" and electronic throttle valve fuse
"3".
• Open circuit check
Between throttle servo motor coupler "1" and
ECU coupler "2"
Between ECU coupler "2" and electronic throttle
valve fuse holder "3"
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 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 9-4.
1
3
Y/R Lg/R
9-207
yellow/red–yellow/red
light green/red–light green/red
red/blue–red/blue
2
Y/R
Lg/R
R/L
R/G
P0638
P/B O/G Gy/R O
L/B G/B R/B B
G/Y B
Y/R Y/B L/W R/L B/W B/W