Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSSUZUKI2013SX4 LE, STANDARD TRANSREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSIMMOBILIZER CONTROL SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESIMMOBILIZER CONTROL SYSTEM CHECK

2013 Suzuki SX4 LE, Standard Trans

Immobilizer Control System Check

2013 Suzuki SX4 LE, Standard TransSECTION Immobilizer Control System Check

IMMOBILIZER CONTROL SYSTEM DIAGNOSIS CHART

Step	Action	YES	NO
1	Immobilizer indicator light ON check 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 Check ECM for DTC referring to DTC CHECK . Is DTC P1636 or P1638 detected?	Go to applicable DTC troubleshooting.	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 troubleshooting.	Go to Step 4.
4	Engine start check 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 Check if immobilizer indicator light remains ON after engine starts. Does immobilizer indicator light remains ON after engine starts?	Go to IMMOBILIZER INDICATOR LIGHT REMAINS ON AFTER ENGINE STARTS .	Immobilizer control system is in good condition. Then, go to KEYLESS START SYSTEM CHECK for keyless start model.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.