Immobilizer Control System Check
WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC INFORMATION AND PROCEDURE - IMMOBILIZER CONTROL SYSTEM
| Step | Action | YES | NO |
|---|---|---|---|
| 1 | Immobilizer indicator lamp ON check
Does immobilizer indicator lamp (1) come on? |
Go to Step 2. | Check if DTC P1636 and/or P1638 are detected by ECM referring to DIAGNOSTIC TROUBLE CODE (DTC) CHECK . If detected, perform the troubleshooting. Refer to appropriate DTC diagnostics. If not detected, go to IMMOBILIZER INDICATOR LAMP DOES NOT COME ON WITH IGNITION SWITCH ON AND ENGINE STOP . |
| 2 | Immobilizer indicator lamp flash check Does immobilizer indicator lamp flash on and off continuously in Step 1? |
Check what DTC is detected by ECM referring to DIAGNOSTIC TROUBLE CODE (DTC) CHECK . Then, perform the troubleshooting. Refer to appropriate DTC diagnostics. | Go to Step 3. |
| 3 | Engine start check
Does engine start? |
Go to Step 4. | Perform ENGINE AND EMISSION CONTROL SYSTEM CHECK . |
| 4 | Immobilizer indicator lamp remain ON check
Does immobilizer indicator lamp remain ON after engine start? |
Go to IMMOBILIZER INDICATOR LAMP REMAINS ON AFTER ENGINE START . | Immobilizer control system is in good condition. Then, go to KEYLESS START SYSTEM CHECK for the vehicle with keyless start system. |