Vehicle Security System Alarm Operation
WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
When the vehicle security system is triggered, ground is supplied intermittently
- from IPDM E/R CPU
- to headlamp high relay and
- from IPDM E/R terminal 51
- to horn relay terminal 1.
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.