P0630 – VIN Not Programmed or Mismatched

Description

The VIN stored in the ECU is missing or does not match the vehicle.

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Symptoms

  • Check engine light on
  • Car has electrical problems

Causes

  • Incorrect ECU programming
  • ECU replacement
  • Security mismatch

Diagnosis

  • Check VIN data
  • Verify ECU programming
  • Scan immobilizer system

Repair

  • Reprogram ECU
  • Match VIN
  • Perform immobilizer relearn