2002 LEXUS SC 430 TOP NO LONGER OPENING

  • Tiny
  • djstatus
  • 2002 Lexus SC 430

Electrical problem
2002 Lexus SC 430 V8 Two Wheel Drive Automatic 60000 miles

Hi,

My SC430's top suddenly will no longer open. The luggage cover and valet button are in the correct positions. Are there any troubleshooting tips you can provide?

Thank You

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Thursday, April 17th, 2008 AT 7:03 PM

11 Replies

  • Tiny
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I would start at the basics first. Have you checked the fuses?

Have the codes been checked?

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Thursday, April 17th, 2008 AT 7:27 PM
  • Tiny
  • djstatus
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Hi, thanks for the prompt reply. I checked the fuses in the trunk panel there are two 20's that look like they are fine. Apologies for not understanding, which codes are you referring to?

Thanks!

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Thursday, April 17th, 2008 AT 7:31 PM
  • Tiny
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THere are codes stored in the pcm that will give DTC or Diagnostic Trouble Codes. A scanner is required to get them out of the pcm. However we may be able to get through this otherwise.

Check these fuses:


http://www.2carpros.com/forum/automotive_pictures/30961_pddoor1_1.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_pddoor_1.jpg



They are located on the passenger side.


http://www.2carpros.com/forum/automotive_pictures/30961_pddoor2_1.jpg



In the #1 jusnction block.

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Thursday, April 17th, 2008 AT 7:40 PM
  • Tiny
  • djstatus
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Ok I checked those two and they look to be ok.

Thanks

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Thursday, April 17th, 2008 AT 7:49 PM
  • Tiny
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Also check all of these in the trunk:


http://www.2carpros.com/forum/automotive_pictures/30961_pddoor3_1.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_pddoor4_1.jpg

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Thursday, April 17th, 2008 AT 7:50 PM
  • Tiny
  • djstatus
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All those seem to be good as well.

Thx

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Thursday, April 17th, 2008 AT 7:58 PM
  • Tiny
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There are 55 different trouble codes associated with this system as it is complex:


http://www.2carpros.com/forum/automotive_pictures/30961_lexus_1.jpg



These are the vairious components. The trouble codes give a start to diagnosing this system and after looking at this, I need to know them.

Maybe autozone can read them, as they do this for free or may need a special scanner for the Lexus, not sure on this. But without codes the field is too large to go after.

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Thursday, April 17th, 2008 AT 8:06 PM
  • Tiny
  • djstatus
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Thank you, your assistance is tremendously appreciated!

Thanks again I will see what I can find.

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Thursday, April 17th, 2008 AT 8:09 PM
  • Tiny
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I found somthing that may help. I found a technical service bulletin that mentions that if a request is made to open the luggage door while the hardtop is in operation, the operation will be cancelled. IT will be then necessary to manually finish the started operation. I would try to manually do this and see if it resets the system. After it is fully opened and closed it should then be enabled.

If you need the procedure to do this let me know.

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Friday, April 18th, 2008 AT 3:13 PM
  • Tiny
  • djstatus
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The details would be greatly appreciated.

Thanks!

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Tuesday, April 22nd, 2008 AT 6:37 PM

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