C0520; Troubleshooting - Yamaha XSR 900 2022 Service Manual

EAS20560

C0520

EAS33319

TROUBLESHOOTING

Item
Abnormal IMU: Normal signal is not received from the IMU or failure signal is received from IMU.
Fail-safe system
• Able/Unable to start engine (depending on the situation)
• Able/Unable to drive vehicle (depending on the situation)
Procedure
1. Connection of IMU coupler.
• Check the locking condition of the coupler.
• Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the
pins).
Is the coupler condition normal?
YES
→ Go to step 2.
NO
a. Connect the coupler securely or 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 2.
2. Connection of ECU coupler.
• Check the locking condition of the coupler.
• Disconnect the coupler and check the pins (bent or broken terminals and locking condition of the
pins).
Is the coupler condition normal?
YES
→ Go to step 3.
NO
a. Connect the coupler securely or 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 3.
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
9-90
C0520