P0351; Troubleshooting - Yamaha XSR 900 2022 Service Manual

EAS20580

P0351

EAS33060

TROUBLESHOOTING

Item
Cylinder-#1 ignition coil: open or short circuit is detected in the primary lead of the cylinder-#1 ignition
coil. Normal signal is not received from the ignition circuit.
Fail-safe system
• Able to start engine (depending on the number of faulty cylinder)
• Able to drive vehicle (depending on the number of faulty cylinder)
Procedure
1. Connection of cylinder-#1 ignition coil 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. Start the engine and let it idle for approximately 5 seconds.
c. 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. Start the engine and let it idle for approximately 5 seconds.
c. 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.
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P0351