Yamaha YZF-R1 Series Service Manual page 638

a. Replace the wire harness.
b. Crank the engine, and then check the condition of 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 4.
4. Installed condition of crankshaft position sensor.
• Check for looseness or pinching.
• Check the gap (0.75 mm (0.03 in)) between the crankshaft position sensor and the generator rotor.
Is check result OK?
YES
→ Go to step 5.
NO
a. Reinstall or replace the sensor.
b. Crank the engine, and then check the condition of 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 5.
5. Defective crankshaft position sensor.
• Check the crankshaft position sensor.
Refer to "CHECKING THE CRANKSHAFT POSITION SENSOR" on page 8-45.
Is check result OK?
YES
→ Go to step 6.
NO
a. Replace the crankshaft position sensor.
b. Crank the engine, and then check the condition of 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 6.
6. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to "REPLACING THE ECU (Engine Control Unit)" on page 8-41.
7. Delete the DTC and check that the MIL goes off.
• Confirm that the DTC has a condition of "Recovered" using the YDT, and then delete the DTC.
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