Without Scan Tool

IMMOBILIZER SYSTEM ON-BOARD DIAGNOSTIC CODES

1. Turn the ignition switch to START for 2 seconds, then back to ON.
2. Wait for 2 minutes.
3. Verify the security light condition and read the DTC if indicated.
4. Verify the DTC with NGS or equivalent.
5. If the DTC is indicated, go to troubleshooting referring to the diagnostic trouble code table.