What this code means

The immobilizer system cannot detect the transponder signal from the key. The engine will not start.

Symptoms

• Engine cranks but will not start
• Security light flashing
• Key symbol on dashboard
• No-start condition

Common causes

• Dead key battery (smart key)
• Faulty transponder chip in key
• Damaged antenna ring around ignition
• Interference from other transponder keys
• Key handle cracked exposing transponder to damage

Diagnostic steps

1. Try different registered key
2. Hold key closer to ignition/start button
3. Check for key battery (if applicable)
4. Test antenna ring with known-good key
5. Scan immobilizer codes

Repair notes

Replace key battery or have new key programmed. Replace antenna ring if faulty.

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