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Home >> Acura >> 2001 >> 3.2CL Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Performance System Self-Diagnostics) >> Diagnostic Tests >> DTC P0116: Engine Coolant Temperature Sensor Range/Performance Problem

DTC P0116: Engine Coolant Temperature Sensor Range/Performance Problem

WARNING: This page is about a different car, the 2003 Acura RSX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If DTC P0117 and/or P0118 are set, troubleshoot those DTCs before proceeding.
  1. Start engine and run at 3000 RPM, with no load (in park or neutral), until radiator cooling fan comes on. Allow engine to idle.
  2. Using scan tool, check Engine Coolant Temperature (ECT) sensor data. If ECT sensor reading is 176-212°F (80-100°C) or voltage is .5-.8 volt, problem is intermittent. System is okay at this time. Check thermostat and cooling system. If ECT sensor reading is not 176-212°F (80-100°C) or voltage is not .5-.8 volt, check thermostat and cooling system. If thermostat and cooling system is okay, replace ECT sensor.
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