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Home >> Lexus >> 1997 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Circuit Tests >> DTC P0116 - Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Problem >> Diagnosis & Repair
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Diagnosis & Repair

If other codes are displayed, diagnose and repair those codes first and retest. If only DTC P0116 is displayed, check cooling system thermostat. Replace as necessary and retest. If thermostat is okay, replace ECT sensor and retest.

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