DTC C0051-86: Error Steering Angle Signal Received From Electric Power Steering (EPS) Control Module [Adaptive Front Lighting System (AFS) Control Module]: 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 C0051:86 (ADAPTIVE FRONT LIGHTING SYSTEM CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Error steering angle signal received from electric power steering (EPS) control module
DETECTION CONDITION	Either a condition in which the steering angle sensor has a malfunction and the electric power steering (EPS) control module has not performed steering angle neutral position auto learning, or a condition in which the electric power steering (EPS) control module has a malfunction is detected for 5 s or more.
Fail-safe	The swivel actuator is moved to the center. Control of the headlight auto leveling system is continued.
Possible cause	DTCs are stored in the start stop unit. DTCs are stored in the electric power steering (EPS) control module. Electric power steering (EPS) control module malfunction Adaptive front lighting system (AFS) control module malfunction
SYSTEM WIRING DIAGRAM	Not applicable