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2006 MAZDA MX-5 MIATA
2.0L I4•RWD•MANUAL•gas
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Repairs0Labor492Torque3386Fluid8DTC1036Battery1Maintenance0Recalls0
P0117moderate severityPowertrain

ECT Sensor 1 Circuit Low Input

on 2006 Mazda MX-5 Miata 2.0L I4 · RWD

What this code means

The ECT sensor voltage is lower than expected, indicating very high temperature or short.

Symptoms

  • Check Engine Light
  • Fans running constantly
  • Incorrect high temp reading

Common causes

  • Short to ground
  • Faulty sensor
  • Damaged wiring

Diagnostic steps

  1. Test sensor resistance
  2. Check for shorts
  3. Inspect wiring

Repair notes

Repair short or replace sensor.

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