DTC C0051-2F: Steering Angle Sensor Signal Error [Start Stop Unit]: Notes

WARNING: This page is about a different car, the 2020 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

DTC C0051:2F (START STOP UNIT) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Steering angle sensor signal error
Detection condition	Start stop unit detects the steering angle sensor signal error for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	Not applicable
Possible cause	Start stop unit malfunction
System wiring diagram	Not applicable