P0117

2017-10-10

Description:

  • The fault code P0117 indicates that there is an issue with the engine coolant temperature sensor circuit. Specifically, the sensor is detecting a lower temperature input than expected.

Possible Symptoms:

  • Illuminated check engine light

  • Poor fuel economy

  • Engine overheating

  • Difficulty starting the engine

  • Rough idle or stalling

Possible Causes:

  • Failed engine coolant temperature sensor

  • Damaged or corroded wiring or connections in the circuit

  • Failed thermostat

  • Low coolant level

  • Failed engine control module (ECM)

Related Parts:

  • Engine Coolant Temperature Sensor: The coolant temperature sensor measures the temperature of the engine coolant. Problems lead to engine overheating

Possible Solutions:

  • Replace the engine coolant temperature sensor

  • Check and repair any damaged wiring or connections in the circuit

  • Replace the thermostat if necessary

  • Refill coolant to proper level

  • Replace the engine control module (ECM) if necessary

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