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Home >> Lexus >> 2019 >> UX 200 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System W/ Push-Button Start (Start Function) (Symptom Tests) (2 Of 2) (Except Hybrid) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function, Gasoline Model) >> Unable to Unlock Steering Wheel (Engine cannot Start) [10/2018 - 07/2022] >> Description

Unable to Unlock Steering Wheel (Engine cannot Start) [10/2018 - 07/2022]: Description

The steering lock ECU (steering lock actuator or upper bracket assembly) activates the steering lock motor and moves the lock bar into the steering column to lock the steering.

The steering may not unlock when the lock bar gets stuck in the lock hole of the steering column. In this case, if the engine switch is turned on (IG) while shaking the steering wheel, as is done for a vehicle with a mechanical key, the lock bar will be unlocked. If the ID code box (immobiliser code ECU) or ECM is replaced, the system needs to be initialized. Otherwise, the steering cannot be unlocked and the engine cannot be started.

RELATED DATA LIST AND ACTIVE TEST ITEMS

Problem Symptom Data List and Active Test
Unable to unlock steering wheel (Engine cannot start) Smart Access 
  • Unlock Request Receive
  • S Code Check
  • L Code Check
  • Steering Unlock