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.
2007 Suzuki SX4 Base, StandardFACTORY OEM SERVICE PROCEDURE
Section 154 (Keyless Start System)
WARNING: This page is about a different car, the 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
- General Description
- Schematic And Routing Diagram
- Diagnostic Information And Procedures
- Precautions In Diagnosing Troubles
- Self-Diagnosis Function
- Keyless Start System Diagnosis Introduction
- Keyless Start System Check
- Customer Questionnaire (Example)
- Key Indicator Lamp Check
- DTC Check
- DTC Table
- DTC Clearance
- Keyless Start System Symptom Diagnosis
- Keyless Start System Operation Inspection
- Door Lock Operation (Keyless Start System)
- Inspection Of Keyless Start Control Module And Its Circuits
- No DTC Detection After Performing DTC Check
- Key Indicator Lamp Circuit Check (Key Indicator Lamp Doesn't 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/No. 14: Release Signal Error From Steering Lock Unit/Steering Lock Unit Malfunction
- DTC No. 21/No. 22: Internal Error Of Keyless Start Control Module (EEPROM Reading/Writing Error)
- DTC No. 31: Lost Communication With BCM
- DTC No. 33: Control Module Communication Bus Off
- DTC No. 51/No. 52/No. 53: Driver Side/Passenger Side/Rear End Door Request Switch Failure
- Repair Instructions
- Antennas And Request Switches Removal And Installation
- Front Door (Driver And Passenger Side) Rear End Door 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
- Replacement Of Remote Controller Battery
- Registration Procedure For Remote Controller Id Code
Factory Service Tools
Use the Manual With the Right Hardware
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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.