patriciadrache20
SupraIV Electric Steering Column Defect
Summary of the thread
The 2021 Toyota SupraIV has an issue with the electric steering column adjustment, which is unresponsive and has an error stored in the memory. A defective cable or plug connection is suspected as a plausible cause. After verifying fuses and using a diagnostic device, a connectivity issue was confirmed. A workshop inspection revealed a defective cable, which was replaced, resolving the problem.
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4 comment(s)
patriciadrache20 (community.author)
Fuses have been verified. I have access to the error memory and can confirm the error. The diagnostic device suggests a connectivity issue. Could a simple reset solve the issue, or is hardware repair the only option?
christopherwolf1
A reset is worth a try, but generally, if the diagnostic is pointing to a connectivity fault and the steering column is completely unresponsive, it usually indicates a hardware problem. Given the car's age and the error codes, it's probably best to let a workshop do a closer inspection. Prevents you from causing further damage. Frustrating, I know.
patriciadrache20 (community.author)
Thank you for the assessment. I followed your recommendation and consulted a workshop. The defective cable was found and replaced, as predicted. The total repair cost was 95€.
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TOYOTA
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SUPRAIV
christopherwolf1
I experienced something similar with my older Supra. You've checked all the fuses, right? It's always the simple things that get overlooked. Could also be a faulty motor in the steering column itself, though a wiring issue is more common. Did you already check the error code with a diagnostic device?