Here's the difference beetween US and Canadian PM6

First you have to know that US Civic/CRX have a external Electrical Load Detector or ELD. It's located in the fuse box. Canadian car don't have this. If you use a US PM6 in a canadian car, you will get a ECU trouble code #20 (CEL20). You will not be able to do datalogging when you get a CEL.

The ROM are identical. So, to convert a US PM6 to a Canadian one, you have to remove BR1 and you're done. You will not get a CEL20 anymore

Attachment?:	Modify:	Size:	Date:	Who:	Comment:
crx90CA_89-10-17modif2.jpg	mod	935867	03 Mar 2004 - 03:15	tatou100	PM6-C00 (from a canadian pm6)
crx91US_90-12-19modif2.jpg	mod	912837	03 Mar 2004 - 03:17	tatou100	PM6-A09 (from a US pm6)