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 41 (FUEL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESFUEL PUMP ELECTRICAL CIRCUIT DIAGNOSISCIRCUIT/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, the fuel pump should not be operating.
- if the fuel pump operates continuously, test for a short to voltage in supply voltage circuit of the fuel pump. If the circuit/connections test normal, replace the fuel pump relay.
- Test the fuel pump fuse. The fuse should not be open.
- if the fuel pump fuse is open, test for a short to ground in the supply voltage circuit of the fuel pump. If the circuit/connections test normal, replace the fuel pump.
- Ignition OFF, remove the fuel pump relay from the electrical center.
- Ignition ON, test for battery voltage between the B+ voltage circuit of the fuel pump relay and ground.
- if less than B+, repair the B+ voltage circuit of the fuel pump relay for an open/high resistance.
- Connect a 15-amp fused jumper wire between the B+ circuit of the fuel pump relay and the supply voltage circuit of the fuel pump. The fuel pump should operate.
- if the fuel pump does not operate, test for the following conditions:
- An open/high resistance in the supply voltage circuit of the fuel pump
- An open/high resistance in the ground circuit of the fuel pump
- if the above circuit/connections test normal, replace the fuel pump.
- if the fuel pump does not operate, test for the following conditions:
- If all circuit/connections test normal, test or replace the fuel pump relay.
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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.