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 7 (AIR BAG SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0090CIRCUIT/SYSTEM TESTING
2013 Suzuki SX4 Crossover, Automatic CVT Trans
Circuit/System Testing
2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
- The vehicle rollover sensor
- The SDM module
- The vehicle rollover sensor harness connector
- The SDM wiring harness connector
- For DTC B0090 39 replace the vehicle rollover sensor.
- Ignition OFF, disconnect the harness connector at the rollover sensor and the SDM.
- Ignition OFF, test for less than 1 Ξ© of resistance between the rollover sensor ground circuit terminal 6 and ground.
- If greater then the specified range, test the circuit for an open/high resistance.
- Verify a test lamp illuminates between the rollover sensor B+ circuit terminal 1 and ground.
- If the test lamp does not illuminate, test the circuit for an open/high resistance. If the circuit fuse is open, test the circuit for a short to ground.
- Replace the inflatable restraint vehicle rollover sensor.
- With a scan tool, clear the DTCs. Verify DTC B0090 is not set.
- If DTC B0090 is set replace the SDM.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.