DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U023A: Lost Communication with Front Camera Module; DTC U0293: Lost Communication with Hybrid Control Module; DTC U1104: Lost Communication with Driving Support ECU [10/2020 - 10/2023]: Description

The power steering ECU (rack and pinion power steering gear assembly) receives signals from the steering sensor, skid control ECU assembly, forward recognition camera*1, object recognition camera*2, driving support ECU assembly*2 and hybrid vehicle control ECU assembly via CAN communication.

*1: for Mono Camera Type
*2: for Stereo Camera Type

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Return-to-normal Condition	Note
U0126	Lost Communication with Steering Angle Sensor Module	Lost communication with steering sensor	Steering sensor CAN communication system Rack and pinion power steering gear assembly	EPS warning light: Comes on	After the CAN communication returns to normal	-
U0129	Lost Communication with Brake System Control Module	Lost communication with skid control ECU assembly	Skid control ECU assembly CAN communication system Rack and pinion power steering gear assembly	EPS warning light: Comes on	After the CAN communication returns to normal	-
U023A	Lost Communication with Front Camera Module	Lost communication with forward recognition camera (for Mono Camera Type) Lost communication with object recognition camera (for Stereo Camera Type)	Forward recognition camera (for Mono Camera Type) Object recognition camera (for Stereo Camera Type) CAN communication system Rack and pinion power steering gear assembly	EPS warning light: Does not come on	After the CAN communication returns to normal	-
U0293	Lost Communication with Hybrid Control Module	Lost communication with hybrid vehicle control ECU assembly	Hybrid vehicle control ECU assembly CAN communication system Rack and pinion power steering gear assembly	EPS warning light: Does not come on	After the CAN communication returns to normal	-
U1104	Lost Communication with Driving Support ECU	Lost communication with forward recognition camera (for Mono Camera Type) Lost communication with driving support ECU assembly (for Stereo Camera Type)	Forward recognition camera (for Mono Camera Type) Driving support ECU assembly (for Stereo Camera Type) CAN communication system Rack and pinion power steering gear assembly	EPS warning light: Does not come on	After the CAN communication returns to normal	-