If the theft deterrent system detects an inappropriate entry into the vehicle, which could result in the vehicle or its contents being stolen, the alarm alerts the surrounding area of an abnormality by sounding the horn and flashing the hazard warning lights.
The system will not function unless it's properly armed. So when you leave the vehicle, follow the arming procedure correctly.
Immobilizer System
OperationStop Vehicle in Safe Place Immediately
If any of the following warning lights turns on, the system may have a
malfunction. Stop the
vehicle in a safe place immediately and contact an Authorized Mazda Dealer.
...
To Turn Off an Armed System
An armed system can be turned off using
any one of the following methods:
Pressing the unlock button on the
transmitter.
Switching the ignition ON.
(With the advanced keyless function)
Pressing a request switch on the doors.
The hazard warning lights will flash twice.
NOTE
When th ...
Vehicle Speed Sensor (VSS) Inspection [FS5 A EL]
On-Vehicle Inspection
1. Inspect the power supply circuit for the VSS.
a. Remove the insulator from the transaxle.
b. Disconnect the VSS connector.
c. Switch the ignition to ON (engine off).
d. Measure the voltage at VSS connector terminal A (harness-side).
If there is a ...