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 11 (CHARGING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B1516CIRCUIT / 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 at the battery current sensor.
- Ignition OFF, test for less than 1.0 ohm of resistance between the low reference circuit terminal B and ground.
- If the greater than the specified range, test the low reference circuit for an open / high resistance. If the circuit tests normal replace the BCM.
- Ignition ON, test for 4.8- 5.2 volts between the battery current sensor supply voltage circuit terminal A and ground.
- If less than the specified range, test the supply voltage circuit for a short to ground or an open / high resistance. If the circuit test normal replace the BCM.
- If greater than specified range, test the supply voltage circuit for a short to voltage.
- Test for 4.8-5.2 volts between the battery current sensor signal circuit terminal C and ground.
- If less than the specified range, test the signal circuit for a short to ground or an open / high resistance. If the circuit test normal replace the BCM.
- If greater than specified range, test the signal circuit for a short to voltage.
- If all circuits test normal test or replace the battery current sensor.
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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.