4. TROUBLE SHOOTING
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4.19 Gyro/Compass sensor troubleshooting
The compass sensor is calibrated by the gyro sensor data using SW algorithm.
Therefore Gyro sensor error makes the compass sensor malfunction.
Gyro & Compass
Function is OK?
Yes
No
Gyro-OK
Compass-NG?
START
END
Yes
Gyro & compass sensor function check
No
Gyro-NG Compass-OK?
Yes
Function is OK?
Yes
Change the Compass
sensor IC (U105)
Function is OK?
Yes
Change the Gyro sensor IC (U103)
No
Function is OK?
Yes
END
END
END
END
END
Change the SUB-FPCB
Change the Gyro sensor IC (U103)
No
No
No