Yamaha XSR900 2022, Service Manual

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9-1 3 2
P01 3 2
EAS20571
P01 3 2
EAS33051
TROUBLESHOOTING
Item
O
2
sensor: short to power circuit is detected. Normal signal is not received from the O
2
sensor.
Fail-safe system
• Able to start engine
• Able to drive vehicle
Procedure
1. Installed condition of O
2
sensor.
• Check for looseness or pinching.
Refer to “ENGINE REMOVAL” on page 5-9.
2. Connection of O
2
sensor 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).
3. 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 check result OK?
YES
→
Go to step 2.
NO
a. Reinstall or replace the sensor.
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.
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.