P0718: Input/Turbine Speed Sensor Circuit Intermittent

MediumPowertrainTransmission

What does P0718 mean?

P0718 is a diagnostic trouble code indicating "Input/Turbine Speed Sensor Circuit Intermittent". A sensor in the transmission is reporting abnormal data or has lost communication with the ECU. Sensors can fail due to age, contamination, heat exposure, or wiring issues.

Symptoms you may notice

  • Check engine light (MIL) illuminated on dashboard
  • Intermittent warning lights
  • Erratic gauge readings

Estimated repair cost

Typical range in Australia (parts + labour)

$100 – $500 AUD

Common causes

  • Faulty transmission component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

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Related codes

P0717Input/Turbine Speed Sensor Circuit No Signal
P0719Torque Converter/Brake Switch B Circuit Low
P0716Input/Turbine Speed Sensor Circuit Range/Performance
P0720Output Speed Sensor Circuit Malfunction