LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2005 >> Prius >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Electric Power Steering System - Diagnostics >> DTC U0073, U0121: Control Module Communication Bus Off & Lost Communication With Anti-Lock Brake System (Abs) Control Module >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

The power steering ECU assy receives signals from the skid control ECU (ECB ECU) via CAN communication.

Fig 1: DTC Detecting Condition Trouble Area Chart
G02620837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

When two or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harness of each ECU.