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 10 (DATA COMMUNICATION SYSTEM)DIAGNOSTIC INFORMATION & PROCEDURESDTC U2105-U2199 (U2142 OR U2143 ONLY)CIRCUIT/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.
- Using the DTC Descriptor and Diagnostic Aids above, determine the module that is not communicating that should be tested.
- Ignition OFF, disconnect the harness connector of the module that is not communicating.
- Ignition ON, verify that a test lamp illuminates between the module voltage circuit and ground.
- If the test lamp does not illuminate, repair the circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the EBCM.
- Test for less than 5 Ξ© of resistance between the module ground circuits and ground. If the circuit tests normal, replace the EBCM.
- If greater than 5 Ξ©, repair the ground circuit for an open.
- Test for less than 1 Ξ© of resistance in the CAN bus serial data circuits between the non-communicating module and the EBCM.
- If greater than 1 Ξ© of resistance, test the serial data circuit for open/high resistance.
- If all circuits test normal, replace the module that is not communicating.
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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.