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2019 LEXUS UX 200
2.0L I4•FWD•AUTOMATIC•gas
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Repairs0Labor476Torque3316Fluid7DTC1942Battery1Maintenance0Recalls0
P0182moderate severityPowertrain

Fuel Temperature Sensor A Circuit Low

on 2019 Lexus UX 200 2.0L I4 · FWD

What this code means

The PCM detects a low voltage signal from fuel temperature sensor A. This sensor is used to adjust fueling based on fuel temperature.

Symptoms

  • Check engine light on
  • Hard starting
  • Poor drivability

Common causes

  • Faulty fuel temperature sensor
  • Short to ground in wiring
  • Corroded connector
  • Faulty PCM

Diagnostic steps

  1. Scan for stored codes and freeze frame
  2. Check fuel temp sensor signal voltage
  3. Inspect wiring for shorts to ground
  4. Replace fuel temperature sensor if faulty
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