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.
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
No vats.
There is a theft deterrent module (TDM) though, which opens a starter interrupt relay if the alarm is tripped.
The clutch pedal switch is in series with this circuit to the starter also.
There is no fuse for the TDM, you'll have to reach under the passenger side footwell up behind the ecm and disconnect it. It's the wide plug with about 15 wires coming out and is at a 45 degree angle.
If it is the built in factory alarm (not what is normally meant by Vats - as stated above, not on an '85) then the reset proceedure is to: turn off the ignition then unlock a door from the outside with the key. That's it - just lock and inlock an outside door - either one will do, but try both as the switch on the lock tumbler can go bad. Unlocking either of the doors like that disarms and resets the alarm (assuming that It's working OK) and will close the starter interrupt relay.