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 21 (DIFFERENTIAL)DIAGNOSTIC INFORMATION AND PROCEDURESDTC C0393CIRCUIT/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.
- Ignition OFF, disconnect the harness connector C1 at the rear differential clutch control module.
- Ignition ON, verify a test lamp does not illuminate between the following control circuit terminals and ground:
- Coil supply circuit terminal 5
- Low reference circuit terminal 3
- If the test lamp illuminates, test the appropriate control circuit for a short to voltage.
- Ignition OFF, test for infinite resistance between the following control circuit terminals and ground:
- Coil supply circuit terminal 5
- Low reference circuit terminal 3
- If less than the specified value, test the appropriate control circuit for a short to ground.
- Test for less than 5.0 ohms of resistance between the coil supply terminal 5 and the low reference circuit terminal 3.
- If greater than the specified range, test both control circuits for an open/high resistance. If the circuits test normal, replace the differential clutch coil.
- If all circuits test normal, replace the CCM.
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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.