Power Locks: Description and Operation

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Immobilizer System
Component Location Index






System Description
The vehicle is equipped with an immobilizer system that will disable the vehicle unless the proper ignition key is used. This system consists of a transponder located in the ignition key, an immobilizer receiver unit, an indicator light, and the ECM/PCM.

The vehicle has two kinds of keys
- The black master key for:
- ignition switch.
- door locks.
- trunk/hatch lock.
- glove box.
- The gray valet key for:
- ignition switch.
- door locks.

When the key is inserted in the ignition switch and turned to the (II) position, the immobilizer receiver unit sends power to the transponder in the ignition key. The transponder then sends a coded signal back through the immobilizer receiver unit to the ECM/PCM. The immobilizer system can store up to six key codes. If it is necessary to rewrite the ECM/PCM to learn a new key, the dealer needs the customer's vehicle, all its master keys and valet keys, and the Honda PGM Tester equipped with an immobilizer program card. Any key that is not learned during rewriting will no longer start the engine. If the customer has lost his key, and cannot start the engine, contact Honda Customer Relations.