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Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
Satisfied Customers: 4805
Experience:  30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner
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Toyota prius: i have a 2012 toyota prius code c1231 steering

Customer Question

i have a 2012 toyota prius code c1231 steering angle sensor default how can i check and make sure what the problem is
Submitted: 1 year ago.
Category: Toyota
Expert:  Toyota Service replied 1 year ago.
Hello. Welcome to Just Answer. Please allow me to assist you. Replacement of the sensor (the C1231 indicates an internal failure) is only part of the cure. Once the sensor is replaced, it needs to be calibrated. This requires special software and the Toyota scan tool to calibrate the system once the sensor is installed. Replacement of the sensor will not cause the light to go off (even if it is indeed bad, because the calibration needs to be done). Anytime we see a C1231 code we replace the sensor and perform a recalibration. That cures the problem.
Expert:  Toyota Service replied 1 year ago.
Please confirm that you have received my input. If you have any questions, please feel free to ask. Thanks.
Customer: replied 1 year ago.
we are going to align this prius then use the snapon scan tool to calibrate the alignment then maybe the light will go off, what is your thoughts on this.
Expert:  Toyota Service replied 1 year ago.
If you do not have the necessary calibration software in the scan tool you will not be able to complete the task. Calibration is critical.
Expert:  Toyota Service replied 1 year ago.
An alignment is not the issue, the issue is calibrating the new sensor.