Mechanics

TOP NO LONGER OPENING

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
Avatar
Djstatus
April 17, 2008.



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

Have the codes been checked?

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!

Tiny
Djstatus
Apr 17, 2008.
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.

Ok I checked those two and they look to be ok.

Thanks

Tiny
Djstatus
Apr 17, 2008.
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


All those seem to be good as well.

Thx

Tiny
Djstatus
Apr 17, 2008.
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.

Thank you, your assistance is tremendously appreciated!

Thanks again I will see what I can find.

Tiny
Djstatus
Apr 17, 2008.
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.

The details would be greatly appreciated.

Thanks!

Tiny
Djstatus
Apr 22, 2008.
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