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 110 (KEYLESS START SYSTEM)
2013 Suzuki SX4 Crossover, Automatic CVT Trans
Section 110 (Keyless Start System)
2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION Section 110 (Keyless Start 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
- Keyless Start System Description
- Description of Keyless Start System Parts and Functions
- Description of Keyless Engine Start Function
- Description of Keyless Start System Door Lock Function
- Description of Keyless Start System Trunk Lid Opener Function (Sedan)
- Description of Remote Controller Operation Area
- Description of Alarm Function
- CAN Communication System Description
- Schematic and Routing Diagram
- Diagnostic Information and Procedures
- Self-Diagnosis Function
- Keyless Start System Diagnosis Introduction
- Keyless Start System Check
- Customer Questionnaire (Example)
- Key Indicator Light Check
- DTC Check
- DTC Table
- DTC Clearance
- Keyless Start System Symptom Diagnosis
- Keyless Start System Operation Inspection
- Door Lock Operation Inspection (Keyless Start System)
- Inspection of Keyless Start Control Module and Its Circuits
- No DTC Detection after Performing DTC Check
- Key Indicator Light Circuit Check (Key Indicator Light Does Not Light when Ignition Knob Switch Is Pushed)
- Keyless Start Control Module Power and Ground Circuit Check
- DTC No. 11: Communication Error with Steering Lock Unit
- DTC No. 13/14: Release Signal Error from Steering Lock Unit/Steering Lock Unit Malfunction
- DTC No. 21/22: Internal Error of Keyless Start Control Module (EEPROM Reading Error)/(EEPROM Writing Error)
- DTC No. 31: Lost Communication with BCM
- DTC No. 33: Control Module Communication Bus Off
- DTC No. 51/52/53: Driver Side/Passenger Side/Rear End Door/Trunk Lid Request Switch Failure
- Repair Instructions
- Antennas and Request Switches Removal and Installation
- Front Door (Driver and Passenger Side), Rear End Door/Trunk Lid Request Switch Inspection
- Steering Lock Unit Removal and Installation
- Steering Lock Unit Inspection
- Front Door Lock Switch Inspection
- Keyless Start Control Module Removal and Installation
- Remote Controller Inspection
- Remote Controller Battery Replacement
- Registration Procedure for Remote Controller ID Code
- Keyless Start Registration
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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.