Unable to Unlock Steering Wheel (Engine cannot Start) [08/2019 - ]: Description
WARNING: This page is about a different car, the 2022 Toyota Sequoia, 2021 Toyota Sequoia, and 2020 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
The steering lock ECU (upper steering column with switch 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 certification ECU (smart key ECU assembly) 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 Key
|