1997 Volkswagen Jetta Q&A
1997 Volkswagen Jetta Question: The horn goes off by itself. The car won't start, but all electric works.
The '97 has a factory security system that goes off by itself. Unlocking the car by key shuts it off. Futhermore, the car has stopped cranking up. All electric still works fine. It has a new starter and battery.The starter won't even tick when the key is turned. What else could cause the car not to crank? - illwill22
This looks to be related to the security system. I would take it to a repair shop that specializes in VW and have them check the diagnostic trouble codes for the entire vehicle and diagnose accordingly. - lawrenceg