Body & Accessories Accessories
Immobilizer System on Vehicles without Advanced Keyless System
• A PATS (Passive Anti-Theft System), which incorporates the former immobilizer unit
function, has been adopted and is built into the PCM.
• The PATS prevents vehicle theft by only allowing keys that have been registered
specifically for the vehicle to start the engine and prohibits the engine from being started
using any other method (such as using an unregistered key or by shorting the starter
relay circuit).
• The system is composed of the transponder equipped key, the coil antenna, and the
PCM.
• If there is a malfunction in the system, the security light will display the DTC by flashing
when the ignition switch is turned to the ON position. Also, the DTC can be displayed
using the WDS.
Immobilizer System Structural View
M6FL_09028
1
Key (transponder) 3
Security light
2 Coil antenna 4 PCM
Service Training Mazda6 Facelift 09-49
To Next Page
