Corolla Dtc U0073

Total OBD & ECU Auto Diagnostics

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The power steering ECU receives signals from the ECM and the skid control ECU (ABS ECU) via the CAN communication system.

DTC No.

DTC Detection Condition

Trouble Area

U0073

CAN communication error (CAN bus off)

• CAN communication system

U0105

ECM communication error

• CAN communication system

• ECM

U0121

Skid control ECU (ABS ECU) communication error

• CAN communication system

• Skid control ECU (ABS ECU)

HINT:

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

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