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HOMESERVICE MANUALSMAZDA1999626 ES, 2.5 D, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 58 (ENGINE CONTROLS - SELF-DIAGNOSTICS)DIAGNOSTIC TESTSDTC P0117: ENGINE COOLANT TEMPERATURE SENSOR - LOW INPUTDETECTION CONDITION
1999 Mazda 626 ES, 2.5 D, Standard

Detection Condition

1999 Mazda 626 ES, 2.5 D, StandardSECTION Detection Condition
WARNING: This page is about a different car, the 2003 Mazda MPV and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

PCM monitors Engine Coolant Temperature (ECT) sensor input voltage at PCM terminal No. 38. If ECT sensor input voltage is less than .14 volt, DTC is set. This is a continuous monitor. MIL is illuminated if PCM detects malfunction during first drive cycle.

RENDER: 1.0x

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When to See a Mechanic

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.