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Home >> Lexus >> 2013 >> ES 300h >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System (Diagnostic Codes & Circuit Tests) >> Cruise Control System >> DTC U0122: Lost Communication with Vehicle Dynamics Control Module >> Description

DTC U0122: Lost Communication with Vehicle Dynamics Control Module: Description

The vehicle speed sensors send vehicle speed signals to the skid control ECU (brake booster with master cylinder assembly). Signals are then sent to the power management control ECU.

DTC No. DTC Detection Condition Trouble Area
U0122 While power switch is on (IG), communication stop between skid control ECU (brake booster with master cylinder assembly) and power management control ECU continues for 2.6 seconds or more
  • Skid control ECU (brake booster with master cylinder assembly)
  • CAN communication system
  • Power management control ECU