Ummmm.. 1990? ... Actually, the 89,90, 91 should all be the same. Look on the label for the matching letter. Its the letter "L". The SC IRCM is probably not going to be found on other models, but thats a guess on my part. You can try a part lookup for other models and see what shows up.Since my soldering iron melted itself down I've given up on repairing my ircm. What years/models did the 90 sc ircm come on?
Thanks
any links to rebuilt units? I'm not finding them on autozone or advanced auto parts.