DTC U0415 00: Can System Communication Error: Notes

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DTC U0415:00 DETECTION CONDITIONS AND POSSIBLE CAUSES

DTC U0415:00	CAN system communication error
DETECTION CONDITION	Error detected in signal from DSC HU/CM via CAN communication
FAIL-SAFE FUNCTION	Control enabled Power steering malfunction indicator light: Not illuminated
POSSIBLE CAUSE	DSC HU/CM malfunction ABS wheel-speed sensor malfunction
SYSTEM WIRING DIAGRAM	Not applicable