P1117
Engine Coolant Temperature Sensor Intermittent
P1117 is an OBD-II diagnostic trouble code meaning: Engine Coolant Temperature Sensor Intermittent. Common causes: coolant temperature sensor malfunction, poor contact in the sensor connector. Estimated repair cost: $6–22.
Symptoms
- Unstable engine operation at idle
- Increased fuel consumption
- Incorrect temperature readings on the dashboard
- Cooling fan turns on periodically
- Difficulty starting the engine
Causes
- Coolant temperature sensor malfunction
- Poor contact in the sensor connector
- Open or short circuit in the sensor circuit
- Low coolant level
- Air lock in the cooling system
How to Fix
- Check the coolant level and add if necessary
- Inspect the sensor connector and wiring for damage.
- Check sensor resistance at different temperatures
- If necessary, replace the coolant temperature sensor
- Reset the error code and check if it appears again
Related codes
Error P1117 by Vehicle Brand
FAQ
What does the P1117 code mean?
P1117 is an OBD-II diagnostic trouble code that indicates: Engine Coolant Temperature Sensor Intermittent
What causes a P1117 error code?
The most common causes of P1117 include: Coolant temperature sensor malfunction; Poor contact in the sensor connector; Open or short circuit in the sensor circuit; Low coolant level.
How do I fix a P1117 diagnostic trouble code?
To fix P1117: Check the coolant level and add if necessary. Inspect the sensor connector and wiring for damage.. Check sensor resistance at different temperatures. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P1117?
Yes, but get it checked soon
How much does it cost to fix P1117?
The estimated repair cost for P1117 is $6–22. Actual cost depends on your vehicle, location, and labor rates.
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