DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with Hybrid Control Module [08/2013 - ]: Description

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

The power steering ECU assembly receives signals from the skid control ECU (brake booster with master cylinder assembly) and power management control ECU via the CAN communication system.

DTC No.	DTC Detection Condition	Trouble Area
U0129	Lost communication with skid control ECU	CAN communication system Skid control ECU (Brake booster with master cylinder assembly)
U0293	Lost communication with power management control ECU	CAN communication system Power management control ECU