Yamaha XSR900 2022, Service Manual

Page: 667 / 726

9-261
U0125
3. Wire harness continuity.
• Disconnect the ECU coupler “1”, IMU coupler “3” and ignition fuse 2 “4”.
• Remove the joint coupler cap “2”.
• Open circuit check
• Short circuit check
TIP
Disconnect the ECU and IMU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ECU” on page 9-4.
Ground short circuit check “A”
Between ECU coupler “1” and joint coupler “2”
blue/white–blue/white
blue/black–blue/black
Between joint coupler “2” and IMU coupler “3”
blue/white–blue/white
blue/black–blue/black
Between IMU coupler “3” and ground black/white–ground
Between ignition fuse 2 holder “4” and IMU cou-
pler “3”
red/white–red/white
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 6, and complete the service.
NO
→
Go to “Short circuit check”.
Between ECU coupler “1” and ground
blue/white–ground
blue/black–ground
Between IMU coupler “3” and ground
blue/white–ground
blue/black–ground
red/white–ground
Gy L L V P P/W Lg/L O/W Y/L L/B
B/L B/L Br/W Gy/G G/L Br/L B/Y L/W
W/Y W/G G/W G/W Lg/B L/W L/Y
R / W L / B L / W B / W
L/W W W L/W B B L/B L/B Y/B Y/B
L/R L/R L/R L/R B/L B B/L B B B B B
1
4
3
2