Immobilizer Control System Check

WARNING: This page is about a different car, the 2007 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.

IMMOBILIZER CONTROL SYMPTOM DIAGNOSIS REFERENCE

Step	Action	YES	NO
1	Immobilizer indicator light ON check Turn ignition switch to ON position using ignition key. Does immobilizer indicator light (1) come on? Courtesy of SUZUKI OF AMERICA CORP.	Go to Step 2.	Check if DTC P1636 and/or P1638 are detected by ECM referring to DTC CHECK . If detected, go to applicable DTC diag. flow. If not detected, go to IMMOBILIZER INDICATOR LIGHT DOES NOT COME ON WITH IGNITION SWITCH ON AND ENGINE STOP .
2	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 3.
3	Engine start check Start engine using ignition key. Does engine start?	Go to Step 4.	Go to ENGINE AND EMISSION CONTROL SYSTEM CHECK .
4	Immobilizer indicator light remains ON check 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.