OBD Codes List

Diagnostic reference · P0513

P0513

Incorrect Immobilizer Key

System
Speed and idle control (P code)
Lamp
Check Engine Light
Category
Powertrain - Computer and Auxiliary Controls

What it means

P0513 means Incorrect Immobilizer Key.

Check these first

  • A key not programmed to the vehicle
  • A damaged key transponder chip
  • A failed immobilizer module
  • Corroded immobilizer wiring

What to do next

  1. Try a known good key to rule out the key itself
  2. Reprogram the key to the immobilizer
  3. Check the immobilizer wiring and connector
  4. Replace the immobilizer module if a good key still fails
  5. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.