christiansilber5
Alphard immobilizer issue
Summary of the thread
The 2017 Toyota Alphard hybrid is experiencing starting issues, with the engine sometimes starting briefly before dying. An error related to the immobilizer was detected, indicating a potential problem with the key signal. The suggested solution is to have the key reprogrammed by a professional, as a weak or incorrect key signal can prevent the engine from starting. The issue was resolved by reprogramming the key at a workshop, confirming the immobilizer problem.
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4 comment(s)
christiansilber5 (community.author)
Thanks for the quick response! Yes, the error code does mention something about the key signal being weak or incorrect. What did you do to fix it when you had the same problem?
reinhard_light4
Okay, a weak or incorrect key signal nails it! I'm no mechanic, but my gut feeling is that your key needs to be reprogrammed. It's like the key's 'password' got corrupted. To be honest, I wouldn't mess with it myself. I ended up taking mine to a workshop that specializes in car electronics. They sorted it out pretty quickly. Could be worth getting yours checked out too.
christiansilber5 (community.author)
Thanks a lot! I will take your advice and bring it to a workshop. It seems like a reprogramming of the key was indeed the issue. They fixed the immobilizer and the final repair cost was just 45€!
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TOYOTA
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ALPHARD
reinhard_light4
That sounds suspiciously like an immobilizer issue. I had a similar problem with my Alphard. Think of the immobilizer as a bouncer at a club – if it doesn't recognize your key, it won't let the engine start. Does the error code specifically mention anything about key signal or anti-theft system?