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Home >> Lexus >> 2021 >> UX 250h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System W/ Push-Button Start (Start Function) (Diagnostic Codes & Symptom Tests (1 Of 2)) (Hybrid) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function, HV Model) >> DTC B2781: Open / Short in Steering Lock ECU [07/2022 - ] >> Description

DTC B2781: Open / Short in Steering Lock ECU [07/2022 - ]: Description

  1. As this DTC is not normally output, it may be due to noise in the LIN communication system, etc.
  2. DTC No. Detection Item DTC Detection Condition Trouble Area Note
    B2781 Open / Short in Steering Lock ECU One of the following conditions is met (1-trip detection logic (Only output while a malfunction is present and the engine switch is on (IG).)):
    Noise in the LIN communication system, etc.    		 ID code box (immobiliser code ECU) DTC Output Confirmation Operation:
    No confirmation operation is necessary (monitoring is continuous).
  3. VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

    Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
    The engine cannot be started. Prohibits the engine from being started (the engine does not crank).
  4. RELATED DATA LIST AND ACTIVE TEST ITEMS

    DTC No. Data List and Active Test
    B2781 -
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