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Sensors

P0115 Fault in the engine temperature sensor wiring

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P0115 means: Fault in the engine temperature sensor wiring. This sensor tells the engine computer and the gauge how warm the engine is. Drive gently and have the car checked soon. The repair usually costs about €40–180 in Estonia. The most common cause: sensor has failed.

Is it safe to drive?Get it checked soonDrive gently and have the car checked soon.
Typical repair cost€40–180parts and labour in Estonia

What it means

This sensor tells the engine computer and the gauge how warm the engine is. With a wrong reading the radiator fan may run all the time and the car may start poorly. The engine computer isn't getting a proper signal from the sensor at all.

What could be wrong

  1. 1Sensor has failed
  2. 2Corroded connector or broken wire
  3. 3Low coolant

What you can check yourself

With the engine cold, check the coolant level. Check the sensor connector. You can do the simpler checks yourself.

How we fix it

  1. We compare the sensor reading with the real temperature
  2. We repair the wire or connector
  3. We replace the sensor

Standard SAE description: Engine Coolant Temperature Circuit

Want a definite answer?

Bring the car to our workshop in Estonia for diagnostics. We read the fault codes, test the sensors and tell you what is wrong. Repair price depends on the work involved, generally €45 per hour.

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Questions

What does fault code P0115 mean?

Fault in the engine temperature sensor wiring. This sensor tells the engine computer and the gauge how warm the engine is. With a wrong reading the radiator fan may run all the time and the car may start poorly. The engine computer isn't getting a proper signal from the sensor at all.

Can I drive with code P0115?

Drive gently and have the car checked soon.

How much does it cost to fix P0115?

Roughly €40–180 in Estonia. The price depends on exactly what has failed and on the car.

How is P0115 fixed?

We compare the sensor reading with the real temperature. We repair the wire or connector. We replace the sensor.

Related codes

P0100Fault in the mass air flow sensor wiringP0102Mass air flow sensor signal too lowP0103Mass air flow sensor signal too highP0105Fault in the intake pressure (MAP) sensor wiringP0106Intake pressure (MAP) sensor reads wrongP0107Intake pressure (MAP) sensor signal too lowP0108Intake pressure (MAP) sensor signal too highP0110Fault in the intake air temperature sensor wiring

Based on AI combined with our hands-on workshop experience and knowledge. This information is general and prices are approximate (Estonian workshop rates). The same code can mean different things on different cars. Only an inspection of the car gives a definite answer.

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