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Registered
2004 Forester 2.5X
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10 Posts
Discussion Starter #1
I've got a 2004 Forester 2.5X w/ AT, and it looks like I might have to replace the ECM (with a used one). Of course, I would take care to replace it with the exact same ECM, from the exact same model/year/trim/tranny.

Does anyone know if I can just swap it out, without any type of re-programming? I've heard that some ECM's are VIN-specific, and this can allegedly cause problems with state DMV emissions/inspection if the ECM doesn't match the vehicle's actual VIN. Not sure if this is true.

Any info or advice will be much appreciated.
 

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Administrator
2007 Forester Sports XT 4EAT
Joined
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39,050 Posts
Not a whole lot of "magic" in those earlier ECM, not programmable & not VIN-specific.
I would take care to replace it with the exact same ECM, from the exact same model/year/trim/tranny.
If you do this, you won't have any issues. :wink:

Bobby...

['07 FSXT MODding Journal] ['03 X MODding Journal]
 

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Administrator
2007 Forester Sports XT 4EAT
Joined
·
39,050 Posts
The VIN got programmed into the ECM when the Forester got chipped key security... immobilizer security, in the '05 XT.

As long as you get an ECM that matches your Forester, you should be good. :wink:

Bobby...

['07 FSXT MODding Journal] ['03 X MODding Journal]
 
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