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Home >> Mazda >> 2003 >> MX-5 Miata Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0117: Engine Coolant Temperature Sensor Circuit Low Input >> Detection Condition
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Detection Condition

PCM monitors ECT sensor signal at PCM terminal "4P". If voltage at terminal "4P" is less than 0.20 volt. PCM determines that ECT sensor circuit has malfunction. This is a Continuous Monitor (CM). MIL illuminates if PCM detects malfunction condition during first drive cycle. Pending code is not available. Freeze Frame Data is available and DTC is stored in PCM memory.

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