DTC Description

DTC DETECTION LOGIC

DTC	Display item (Trouble diagnosis content)	Malfunction detected condition
C13AB-00	CONTROL MODULE (Control module)	Steering angle sub control module detects the following status when the system is starting. Malfunction of internal relay Malfunction of each backup circuit Malfunction of inverter circuit Malfunction of motor circuit Malfunction of motor angle sensor circuit

POSSIBLE CAUSE

Back up circuit (between steering angle sub control module and steering angle main control module) is open or short.
Back up circuit (between steering angle sub control module and steering force control module) is open or short.
Motor circuit (between steering angle sub control module and steering angle sub motor) is open or short.
Motor angle sensor circuit (between steering angle sub control module and sub motor angle sensor) is open or short.
Steering angle sub control module

FAIL-SAFE

Refer to Fail-safe .