Security System and Locks System: Maintenance Mazda 3 BL

No.5 Resetting Procedure for the Immobilizer System when Replacing the PCM or Instrument Cluster Conditions

1. When replacing only the PCM: No conditions.
2. When replacing only the instrument cluster: Customer has two or more valid keys after replacement tasks.
3. 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.