Antitheft System - Immobilizer System Info.

New Immobilizer System in

'06 Civics

The 06 Civic comes fresh from the factory with a new immobilizer system. It's Type 6, and it uses different logic than the Type 3 system that's in '01-05 Civics. Knowing what the differences are will help you to troubleshoot this new system and to identify whether the system is at fault or not. Here's the lowdown.

Normal Operation

When you turn the ignition switch to ON (II), and the ignition key's transponder code is recognized by the system, the immobilizer system indicator comes on for 2 seconds, and then goes off. The immobilizer system will let the engine start normally.

When you turn the ignition switch to LOCK (0), the immobilizer system indicator doesn't come on. This is unique to the Type 6 system.

If the Immobilizer System Detects a Problem

When you turn the ignition switch to ON (II), and the ignition key's transponder code isn't recognized by the system, the immobilizer system indicator comes on for 2 seconds, and then starts to blink.

The immobilizer system reaction will vary depending on how fast you turn the ignition switch. If you turn the switch quickly from LOCK (0) to START (III), the engine will start up, run for about 1 second, and then shut off. If you turn it to ON (II), hold it there, and then turn it to START (III), the starter will crank the engine, but the engine won't start.

When you turn the ignition switch to LOCK (0), the immobilizer system indicator blinks 10 times. This is unique to the Type 6 system.