Question about part numbers for Honda ECM

[spencer]

I need to find a replacement ecm for my 2002 honda civic lx.
I can find a matching top line, but not the second part of my current honda ecu part number.

37820-PLM-L54
2415-332155

Does anyone know why I can’t find one that matches the second part of my part number?
Do I need it to match to be a good swap?

Thank you in advance!

Topic

[Hokiedad4]

Are you sure that’s part of the part number? Maybe it’s a serial number.

[Lorrin Barth]

On my Mitsubishi there are ROM numbers printed on the sticker on the computer. In other words, either the same computer or a slightly different computer, in either case with slightly different programming if the ROM number is different.

[Author]

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