Where would I find the ECU in a DI+APC 9000? The model year is 1990 I believe (late '89 on the door jamb sticker). Thanks!
Spot on. The area behind the false firewall under the plastic cover where all the A/C gear is located is the 'aquarium'.What exactly is the "aquarium". Sorry, but I'm a c900 owner and it is a foreign term to me.
In 86-89 9000s, I've found the APC controller under the front left seat (driver's for us) and the ECU in the area under the windshield wipers (left side again, perhaps this is the "aquarium"?).