DTC U0129: Lost Communication with Brake System Control Module: Description

The No. 1 meter ECU communicates with the skid control ECU via the CAN line.

DTC Code	DTC Detection Condition	Trouble Area
U0129	When either of following conditions is detected: 15 seconds have elapsed since engine started and IG voltage 10.5 V or more No communication with skid control ECU continues for 3 seconds or more (No communication with ECM or skid control ECU continues for 60 seconds or more)	CAN communication system