Electronic Power Steering System

DTC U0073 Control Module Communication Bus OFF

DTC U0104 Lost Communication with Distance Control ECU

DTC U0129 Lost Communication with Skid Control ECU

DTC U0130 Lost Communication with VGRS

DTC U0293 Lost Communication with HV ECU

DESCRIPTION
The power steering ECU receives signals from the ECM and skid control ECU and steering control ECU via CAN communication.

U0073-U0293:

HINT:
^ When two or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.
^ If the power steering ECU assembly detects DTC U0129 only, it adjusts the amount of power assistance for a speed of 100 km/h (62 mph) and continues system control.

INSPECTION PROCEDURE

Step 1: