Yamaha XSR900 2022, Service Manual

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9-169
P0458
EAS20785
P0458
EAS33528
TROUBLESHOOTING
Item
Purge cut valve solenoid: open circuit is detected. PCV solenoid is not operated.
Fail-safe system
• Able to start engine
• Able to drive vehicle
Procedure
1. Connection of purge cut valve solenoid 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).
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).
3. Wire harness continuity.
• Disconnect the ignition fuse “1”, purge cut valve solenoid coupler “2”, ECU coupler “3” and main
switch coupler “4”.
• Open circuit check
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.
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.