How it works
Normally:
The relay connects pin 30 to 87a
The wire works as normal
The vehicle runs
When immobilised:
The relay disconnects 30 from 87a
Power to the fuel pump / ignition is cut
The engine stops
Immobilizer wiring
Basic Immobiliser Installation
Install a 5-pin relay (30 / 85 / 86 / 87 / 87a).
Locate the wire you want to interrupt
This is usually the fuel pump power wire or ignition power wire.Cut this wire
After cutting it you will have two loose ends.
One end goes towards the battery / fuse box
One end goes towards the fuel pump or ignition
Connect the relay
Pin 30 → one end of the cut wire
Pin 87a → the other end of the cut wire
(The relay simply sits in the middle of the wire you cut.)
Pin 85 → ignition switched +12V
Pin 86 → tracker immobiliser output wire
Important
Only test immobilisation while the vehicle is stationary
Professional installation is recommended
