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Boot And Fuel Hatch Open When Key Removed.

James Marsh

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Hello all,

First post so apologies for any poor etiquette here.

I have a Lexus SC430 Soarer Import 2001 (Y-Reg UK)

Not sure if I have a car electrical problem or some issue with the key itself (only have 1 key which is annoying).

On turning the engine off both the boot (trunk) and the petrol hatch open. Somewhat annoying. Any suggestions?


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Never heard of that fault. Cant think of it being key related. Both keys are the same and then you also have a valet key which does not open the boot and glove box. May be worth asking on alot more US SC430 owners.

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  • 9 years later...

  • 2 weeks later...

LHD image but this may help. I didn't think of the gateway ecu and I remember investigating a potential fault on the LS430 gateway a few years ago. 


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  • 4 weeks later...
On 2/26/2021 at 8:48 PM, David Breame said:

Thanks for reply 

found it and ordered a replacement not expensive used at £25

and easy to change so I’ll let you know if it works 

thanks again dave 


Hi mate Did you solved the problem with gateway ecu?  


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Any more help with this problem would be helpful

tried network gateway Ecu no change 

next thing I’ve looked at could be  body control module 

any body know anything about these or any that can check it out 

or repair 

thanks Dave 

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