No. 5 Resetting Procedure For The Immobilizer System When Replacing The Pcm Or Instrument Cluster: Conditions

WARNING: This page is about a different car, the 2004 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

When replacing only the PCM: No conditions.
When replacing only the instrument cluster: Customer has two or more valid keys after replacement tasks.
When replacing the PCM and the instrument cluster: Customer has two or more valid keys after replacement.
CAUTION:
- When replacing the PCM and the instrument cluster at the same time, follow the same instructions described in the procedure for "when replacing the instrument cluster".
- When replacing only the PCM, start from Step 2. Also, when key 1 is indicated within the procedure, any valid key can be used.
- Before starting Step 1, complete the procedure for PCM and instrument cluster replacement.