DTC U0129/41: Lost Communication with Brake System Control Module; DTC U0130/41: Lost Communication with Steering Effort Control Module; DTC U0293/41: Lost Communication with Hybrid Vehicle Control System [09/2014 - ]: Description

The DRS ECU (rear steering control ECU) sends and receives data to and from the skid control ECU assembly, power management control ECU and VGRS ECU (front steering control ECU) via CAN communication.

DTC Code	DTC Detection Condition	Trouble Area
U0129/41	All conditions are met for approximately 3 seconds or more: 2 seconds or more elapse after turning the power switch on (IG). The power source voltage is 10 to 16 V. The signal from the skid control ECU is lost.	Skid control ECU assembly CAN communication system
U0130/41	All conditions are met for approximately 3 seconds or more: 1 second or more elapses after turning the power switch on (IG). The power source voltage is 10 to 16 V. The signal from the VGRS ECU is lost.	VGRS ECU (front steering control ECU) CAN communication system
U0293/41	All conditions are met for approximately 3 seconds or more: 1 second or more elapses after turning the power switch on (IG). The power source voltage is 10 to 16 V. The vehicle is being driven at a speed of 20 km/h (12 mph) or more. The signal from the power management control ECU is lost.	Power management control ECU CAN communication system