Immobilizer Control System Check
DIAGNOSIS PROCEDURE - IMMOBILIZER CONTROL SYSTEM CHECK
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Immobilizer indicator light ON check 1) Turn ignition switch to ON position using ignition key. Does immobilizer indicator light come on? |
Go to Step 2. | Go to IMMOBILIZER INDICATOR LIGHT DOES NOT COME ON WITH IGNITION SWITCH ON AND ENGINE STOP . |
| 2 | DTC check 1) Check ECM for DTC referring to DTC CHECK . Is DTC P1636 or P1638 detected? |
Go to applicable DTC diag. flow. | Go to Step 3. |
| 3 | Immobilizer indicator light flash check Does immobilizer indicator light flash on and off continuously in Step 1? |
Check ECM for DTC referring to DTC CHECK . Then, go to applicable DTC diag. flow. | Go to Step 4. |
| 4 | Engine start check 1) Start engine using ignition key. Does engine start? |
Go to Step 5. | Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK . |
| 5 | Immobilizer indicator light remains ON check 1) Check if immobilizer indicator light remains ON after engine start. Does immobilizer indicator light remains ON after engine start? |
Go to IMMOBILIZER INDICATOR LIGHT REMAINS ON AFTER ENGINE START . | Immobilizer control system is in good condition. Then, go to KEYLESS START SYSTEM CHECK for keyless start model. |