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HOMESERVICE MANUALSSUZUKI2013SX4 CROSSOVER, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSCONTINUOUSLY VARIABLE TRANSAXLE (CVT)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0721: OUTPUT SPEED SENSOR CIRCUIT RANGE/PERFORMANCEDTC DETECTING CONDITION AND TROUBLE AREA
2013 Suzuki SX4 Crossover, Automatic CVT Trans

DTC Detecting Condition and Trouble Area

2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION DTC Detecting Condition and Trouble Area
P0721 SYMPTOM DIAGNOSIS DESCRIPTION CHART

DTC detecting condition Trouble area
DTC P0721: Output Speed Sensor Circuit Range/Performance 
This DTC is detected if all of the following conditions are met.
  • Difference between measured engine speed and the estimated secondary pulley speed is more than 1000 RPM for 5 sec. when lock-up ON.
  • Difference between measured primary pulley speed and the estimated secondary pulley speed is more than 1000 RPM for 5 sec. when lock-up ON.

(2 D/C detection logic)
  • Secondary pulley speed sensor and/or its circuit
  • Primary pulley speed sensor and/or its circuit
  • TCM
RENDER: 1.0x

NO RELATED

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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.