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Instrument Cluster Programming — EEPROM, PIN Extraction & Crash Data Reset The instrument cluster stores more than just mileage. Inside its EEPROM (typically a 93C46, 93C56, or 24C series chip) you will find: the odometer value, the immobilizer PIN code, the VIN, service interval counters, and — critically after any accident — airbag crash data that locks the SRS module and prevents the airbag warning light from clearing. The tools in this category give technicians direct read/write access to cl