Peugeot 206 Key Replacement Peugeot 206 key replacement is a simple job and can be done in just a few minutes. You just need to transfer the immobilizer chip, battery and electronic components from the old keyfob to the new. Peugeot 206 keyfobs can have a button cell battery that fails. This video will show you how to replace the battery. The Immobilizer System
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