Is the trunk latch the same as the Corolla?

The suspension done ? What is . Replace every part till happy?

 

I would try the Corolla trunk latch on the '03 this is the generation 1 obviously the last of them I don't have one of these I know on a Gen 2 absolutely not but on the one with the trunk it's quite possibly the thing. I do own 02 03 corolla's. But no 03 Prius trunk to check see if the part numbers are same or even the same series on the two latches

 

I'm skeptical that would work since it looks like the 2003 Corolla has the lock cylinder in a different place (Prius center, Corolla offset). It's possible you could get something that works by combining parts from your Prius latch and a new Corolla latch, but if you haven't yet I would check eBay and car-part.com for used Prius latches.

 

Might be available here:

Back door lock & handle for Toyota Prius XW20, 2 generation 09.2003 - 10.2005 - Toyota Car and Auto Spare Parts - Genuine Online Car Parts Catalogue - Amayama

Look around starting from the main page too; not sure if I got your 2003 version right.

 

Yes but the rod that will activate from the lock to the striker which is I think what he's trying to replace you should be able to easily fit the linkage maybe bend the linkage a little whatever the case may be but it looks to be very similar latch I have the Corolla here I do not have that model Prius and yes looking on eBay and online you should find this part pretty much no problem these cars are all starting to go down Gen ones that is

 

That’s for second-generation Prius cars (model years 2004–2009, produced from September 2003).

For first-generation Prius cars (produced through August 2003), see Figure 61-05, Luggage Compartment Door & Lock, which shows that the part number for the luggage compartment door lock assembly is 64610-47020.

As far as I can tell, that part isn’t used on other vehicles, not even first-generation Prius cars built for sale in Japan or Europe, which used 64610-47010 or 64610-47011. I don’t know what the differences might be, nor whether any of these three parts is still available from Toyota dealers in any country.

 

I would have to give that a whirl at least have to have it side by side and give it a shot it's damn close My 03 my '02 is almost like that you should look at the 02 Corolla I think that's an AE 111 and see if that is a better fit that has the part sticking down more like yours in the first picture the metal and still has the open from the inside handle and all that two 002 Corolla AE 111

 

Look at 2002 corolla AE 111 I believe almost exact.

 

The Toyota Deck Lid Latch P/N for a '03 Prius is 6461047020.
6461047020 - Deck Lid Latch - Genuine Toyota Part

You will find several available on eBay by searching for this part number.

 

so did you ever try the corolla one? Interested in using a corolla one as well.