When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Quit looking at the ECU and check the continuity of the signal. Grab a wiring diagram and figure out which ECU pins correspond to the CAS signal wires. Make sure that the signal at the CAS actually reaches the ECU. If it does then you may have an ECU issue, if it doesn't, happy hunting.