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 DIAGNOSISTRANSMISSIONAUTOMATIC TRANSCONTINUOUSLY VARIABLE TRANSAXLE (CVT)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0871: TRANSMISSION FLUID PRESSURE SENSOR/SWITCH "C" CIRCUIT RANGE/PERFORMANCEDTC TROUBLESHOOTING

2013 Suzuki SX4 Crossover, Automatic CVT Trans

DTC Troubleshooting

2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION DTC Troubleshooting

DTC P0871 TROUBLESHOOTING CHART

Step	Action	YES	NO
1	Was "CVT System Check" performed?	Go to Step 2.	Go to CVT SYSTEM CHECK .
2	Sensor power supply check Turn off ignition switch and disconnect solenoid connector. Check for proper terminal connection to solenoid connector. If connections are OK, turn ignition switch to ON position. Check that voltage between sensor power supply circuit (B1) and vehicle body ground is 5 V. Is it in good condition?	Go to Step 3.	Repair or replace defective wire harness.
3	Primary pressure sensor and its circuit check Check primary pressure sensor and its circuit according to Step 3 through 4 of DTC P0842/P0843 . Are they in good condition?	Go to Step 4.	Repair or replace defective parts.
4	Secondary pressure sensor and its circuit check Check secondary pressure sensor and its circuit according to Step 3 through 4 of DTC P0847/P0848 . Are they in good condition?	Go to Step 5.	Repair or replace defective parts.
5	Stall test Perform stall test. See Stall Test Is it in good condition?	Substitute a known-good TCM and recheck.	Replace primary pressure sensor / secondary pressure sensor (valve body assembly).

RENDER: 1.0x

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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.