Honda HR-V: Immobilizer System Description - Overview

An immobilizer system adds a second electronic layer of security to the vehicle. If the key matches mechanically, but the electronic check does not match, the engine control computer suspends fuel delivery and shuts down the engine. Refer to the keyless remote system description for assistance, because the immobilizer function is merged into the keyless remote system when a vehicle has the keyless remote system.

IMMOBILIZER SYSTEM DESCRIPTION - SYSTEM DIAGRAM

IMMOBILIZER SYSTEM DESCRIPTION - CONTROL/FUNCTION

Immobilizer Function

The system provides mutual authentication between the immobilizer-keyless control unit, the PCM, and the MICU when turning the vehicle to the ON mode. The engine stays running after the engine start-up if the correct key is inserted.

IMMOBILIZER SYSTEM DESCRIPTION - COMPONENTS

Immobilizer Indicator

The immobilizer system turns on the indicator light after the ignition system enters the vehicle ON mode and then starts the authentication process. The indicator light comes off after the control unit confirms the chip code is correct. The indicator light in this step tells an abnormality in the system, or success/failure of the key authentication.

Ignition Key

Vehicles equipped with the immobilizer system have an identification marking on the mechanical key. Consider this identification marking as a proof of the vehicle having the immobilizer system.

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