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 13 (LIGHTING SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B2545CIRCUIT/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.
- Place the PRNDL in to the PARK Position. Disconnect both tail lamp assemblies and the inside rearview mirror.
Clear the DTC. Using a test lamp connected to ground probe the backup lamps voltage supply circuit at the tail lamps.
- If the test lamp illuminates, test for a short to ground or open in backup lamps voltage supply circuit. If all circuits/connections test normal, replace the BCM.
- If the test lamp illuminates, test for a short to ground or an open in the CHMSL/DIMR fuse voltage supply circuit. If all circuits/connections test normal, replace the BCM.
- Connect one of the tail lamp assemblies and test for the DTC. If the DTC resets replace that tail lamp assembly.
- If tail lamps test normal, replace the inside rearview mirror.
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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.