DTC U0122: Lost Communication with Vehicle Dynamics 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 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 |
|