TorqueMech OBD Code Guide
P0513 - Incorrect Immobilizer Key
The immobilizer did not recognize the key signal as valid.
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Read code pattern
Check likely system
Estimate after confirmation
Code Overview
The immobilizer did not recognize the key signal as valid.
Common Causes
- Incorrect or damaged key
- Immobilizer antenna or module fault
- Communication issue between modules
Diagnostic Steps
- Try another programmed key if available
- Check for anti-theft or module communication codes
- Inspect immobilizer antenna and module connections
Related OBD Codes
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Next Steps
Move from code to checks, then estimate.