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Home >> Lexus >> 2009 >> IS 350 >> Repair and Diagnosis (Single Page) >> Steering >> Steering Column >> Steering Column / Electric Steering Lock (Service Information & Diagnostics) >> Electric Steering Lock >> DTC B2781: Open / Short in Steering Lock ECU >> Description

DTC B2781: Open / Short in Steering Lock ECU: Description

If the steering lock ECU determines that there is a malfunction inside the ECU, it outputs this DTC. Diagnostic communication between the steering lock ECU and the Techstream is performed via the certification ECU as the steering lock ECU is not connected to the BEAN.

DTC No. DTC Detecting Condition Trouble Area
B2781
  • Steering lock motor drive circuit is defective.
  • Both lock and unlock position sensors detect "ON".
Steering lock actuator assembly (Steering lock ECU)