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Home >> Toyota >> 2007 >> Highlander Base, 2.4 D, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Power Steering) >> Electronic Power Steering System >> DTC U0073 Control Module Communication Bus OFF; DTC U0121 Lost Communication with Anti-lock Brake System (ABS) Control Module >> Description

DTC U0073 Control Module Communication Bus OFF; DTC U0121 Lost Communication with Anti-lock Brake System (ABS) Control Module: Description

WARNING: This page is about a different car, the 2007 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

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

DTC DETECTION CONDITION AND TROUBLE AREA

DTC No. DTC Detection Condition Trouble Area
U0073 CAN communication error (CAN bus is off) CAN communication system
U0121 Skid control ECU communication error
  • CAN communication system
  • Skid control ECU (when only U0121 is output)

HINT:

When 2 or more DTCs starting with [U] are output simultaneously, inspect the connectors and wire harness of each ECU.

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