Yamaha YZF-R1 Series Service Manual page 564

EAS20552
30_EVENT
EAS33033
TROUBLESHOOTING
Item
Latch up detected.
Fail-safe system
• Unable to start engine
• Unable to drive vehicle
Procedure
1. The vehicle has overturned.
• Raise the overturned vehicle vertically and check again.
• Turn the main switch to "ON", then to "OFF", and then back to "ON".
Is the MIL on?
YES
→ Go to step 2.
NO
→ Service is completed.
2. Installed condition of IMU.
• Check the installed direction and condition of the sensor.
• Check the grommet for cracks.
Is check result OK?
YES
→ Go to step 3.
NO
a. Fix the IMU installation condition.
b. Turn the main switch to "ON", then to "OFF", and then back to "ON".
Is the MIL on?
YES
→ Go to step 3.
NO
→ Service is completed.
3. Defective IMU.
• Execute the diagnostic mode. (Code D17)
• Check that 0°–5° is displayed when the vehicle is vertical and that the displayed value increases as
the vehicle continues to incline.
Is check result OK?
YES
→ Go to step 4.
NO
a. Replace the IMU.
Refer to "GENERAL CHASSIS (1)" on page 4-1.
b. Turn the main switch to "ON", then to "OFF", and then back to "ON".
Is the MIL on?
YES
→ Go to step 4.
9-67
30_EVENT