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.
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HOMESERVICE MANUALSSUZUKI2013SX4 CROSSOVER, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 73 (IMMOBILIZER CONTROL SYSTEM)
2013 Suzuki SX4 Crossover, Automatic CVT Trans
Section 73 (Immobilizer Control System)
2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION Section 73 (Immobilizer Control System)
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
- Precautions
- General Description
- Schematic and Routing Diagram
- Component Location
- Diagnostic Information and Procedures
- Immobilizer Control System Check
- DTC Check
- DTC Clearance
- DTC Table
- Scan Tool Data
- Immobilizer Indicator Light Does Not Come ON with Ignition Switch ON and Engine Stop
- Immobilizer Indicator Light Remains ON after Engine Starts
- DTC P1614: Transponder Response Error
- DTC P1615: Steering Lock Unit Communication Error
- DTC P1616: Unregistered Keyless Start Control Module
- DTC P1618: Keyless Start Control Module CAN Communication Error
- DTC P1621: Immobilizer Communication Line Error
- DTC P1622: EEPROM Reading/Writing Error
- DTC P1623: Unregistered Transponder
- DTC P1625: Immobilizer Antenna Error
- DTC P1636: Immobilizer Information Registration Failure
- DTC P1638: Immobilizer Information Mismatched
- DTC P1645: ID Code Communication Error
- DTC P1646: ID Code Incorrectness
- Inspection of ICM and Its Circuit
- Inspection of ID Controller and Its Circuit (If Equipped)
- Repair Instructions
- Special Tools and Equipment
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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.