P0513Anti-Theft

Incorrect Immobilizer Key

P0513 means the anti-theft immobilizer did not recognize a valid key. It can be a damaged transponder key, a fault in the immobilizer antenna, or a wiring or module issue.

🚗 Often no. If the immobilizer rejects the key, the engine may not start or may shut down. Resolve before relying on the vehicle.

HIGH

severity

🎯 Top Causes, Ranked by Likelihood

#1Damaged or unprogrammed key transponder$50-$400

40%

The key chip is faulty or not matched to the immobilizer.

#2Immobilizer antenna ring fault$50-$300

25%

The ring around the ignition cannot read the key.

#3Wiring or connector fault$40-$300

20%

A broken connection between the antenna and module.

#4Immobilizer control module fault$200-$900

15%

The anti-theft module itself has failed.

🩺 Common Symptoms

Engine no-start or immediate stall
Security or immobilizer light on
Check engine light
Key not recognized

💰 Repair Cost: DIY vs Shop

DIY Cost

$50-$400

Shop Cost

$100-$900

📋 Free OBD2 Code Cheat Sheet

The 50 most common codes with likely cause and DIY fix cost. Sent once, no spam.

🔧 How to Diagnose P0513

1Try a known-good spare key

2Inspect the immobilizer antenna ring around the ignition

3Check the wiring to the immobilizer module

4Have the key reprogrammed or the module diagnosed

❓ Frequently Asked Questions

Can I drive with P0513?

Often not, because the immobilizer can prevent the engine from starting or keep it running.

How much to fix P0513?

A key reprogram or replacement can be $50-$400; module or antenna repairs run higher.

Is P0513 serious?

Yes, in the sense that it can immobilize the vehicle, though it is a security feature working as designed.

🔗 Related Codes

P0512P0630P0633P0634