Using Security Light
Turn ignition switch to START position for 2 seconds, then back to ON position. Wait for 2 minutes. Count SECURITY light flashes. On digits 01-09, light will flash briefly. For digits that are a multiple of 10 (10, 20, 30) light will flash for a long time. For example: 21 is two long flashes followed by one short flash. Verify DTC with New Generation Star (NGS) tester. If DTCs are present, see DIAGNOSTIC TROUBLE CODE IDENTIFICATION .
DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| DTC | Circuit/System Affected |
|---|---|
| 01 | ID Number Unregistered In Immobilizer Unit Input After Engine Cranking |
| 02 | ID Number Format Error (Voltage Range, Frequency) |
| 03 | ID Number Is Not Input Into Immobilizer Unit After Engine Cranking |
| 11 | Coil Or Wiring Harness Between Coil & Immobilizer Unit Is Open |
| 21 | Code Word/ID Number Memorized In Immobilizer Unit EEPROM Cannot Be Read |
| 24 | Wiring Harness Between PCM & Immobilizer Unit Is Open Or Shorted |
| 30 | PCM - Immobilizer Unit Communication Error |