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2017 MAZDA MAZDA3

2.0L I4FWDAUTOMATICgas
2 active safety recalls on this vehicle — view recalls
Repairs0Labor479Torque4866Fluid6DTC917Battery0Maintenance0Recalls2
P0119moderate severityPowertrain

ECT Sensor 1 Circuit Intermittent

on 2017 Mazda Mazda3 2.0L I4 · FWD

What this code means

The ECT sensor signal is intermittent.

Symptoms

  • Check Engine Light (intermittent)
  • Erratic temp gauge
  • Fan cycling issues

Common causes

  • Loose connector
  • Damaged wiring
  • Intermittent sensor failure

Diagnostic steps

  1. Wiggle test
  2. Monitor ECT signal
  3. Inspect connector

Repair notes

Repair connector or wiring.

Other Powertrain codes on this vehicle

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