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P0115 coolant temperature sensor

Coolant temperature sensor circuit failure P0115 failure.

Posted by Anonymous on


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Posted on Jan 02, 2017

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SOURCE: where is the P0115 sensor

the trouble code p0115 is referring to an engine coolant temp sensor malfunction. The sensor may be located on the thermostat housing, or behind the exhaust manifold im not quite sure. It should have a 2 wire connector.

Posted on Dec 22, 2010

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SOURCE: p0115

I am not sure what your question is. You should try to post a complete sentence here to get the best results, Many people will not bother with a problem message as short and cryptic as yours is.

If you have a car and this is a trouble code, it is "coolant temperature sensor error" probably meaning that component needs replacement, or a wiring connection has broken.

Posted on Nov 22, 2011

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1 Answer

Codes are...p1352-p1481-p1335-p0180-p1351-p1350p0115

P1352 - Ignition Coil 'A' Primary Circuit Malfunction P1481 - Fan Secondary Low With High Fan On P1335 - Crankshaft Position Sensor P0180 - Fuel Temperature Sensor 'A' Circuit Malfunction

P1351 - IDM Input Circuit Malfunction/ Ignition Coil Control Circuit High Voltage P1350 - Fuel Level Sensor 'B' Intermittent/Bypass Line Monitor P0115 - Engine Coolant Temperature Circuit Malfunction

Oct 14, 2015 | Cars & Trucks

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What is the code cc1450 po 115 ?

P0115 Engine Coolant Temperature Circuit Malfunction
Detailed information on troubleshooting and repairing a p0115 automotive trouble codewhich refers to a malfunction in the engine coolant temperature circuit.

Sep 17, 2015 | Cars & Trucks

1 Answer

Error code p1115

The Engine Coolant Temperature Sensor measures the rise and fall of the Engine Coolant Temperature. Common Problems That Trigger the P0115 Code Defective Engine Coolant Temperature Sensor Rusty and/or corroded Engine Coolant Faulty or corroded Engine Coolant Temperature wiring or connections

Sep 25, 2014 | 2000 Kia Sportage

1 Answer

P0115 code

P0115 is Engine Coolant Temperature Circuit Malfunction
disconnect coolant sensor ,look for antifreeze in connector if yes change coolant sensor and connector terminal
hope it helps

Mar 25, 2014 | 1999 Pontiac Grand Am GT

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NO POWER TO SPARK PLUG toyota noah 2003 showing error code p0105, p0110, p0115. some one help me plz.

code p0105 refers to manifold absolute pressure (MAP) sensor/ barometric pressure (BARO) sensor--circuit malfunction===causes --wiring---MAP sensor--BARO sensor--ECM
code p0110 refers to intake air temperature (IAT) sensor--circuit malfunction===causes---wiring ---IAT sensor--ECM
code po115 refers to engine coolant temperature (ECT) sensor--circuit malfunction===causes---wiring--ECT sensor---ECM

Dec 25, 2013 | Cars & Trucks

1 Answer

Code po120 mazda protege 1.5 L..code po110...code po115.....code po195

P0110 DTC - IAT Circuit Malfunction

P0115 DTC - Engine Coolant Temperature Circuit Malfunction

P0120 DTC - TPS A Circuit Malfunction

P0195 DTC - Engine Oil Temperature Sensor Malfunction

Hope this helps to identifiy.

Oct 04, 2011 | Cars & Trucks

1 Answer

PO115 the mill it is on and the car not start normaly to mach smoce to the exoste

Engine Coolant Temperature Circuit Malfunction...

What does that mean? The ECT (Engine Coolant Temperature) sensor is basically a thermistor that changes resistance with temperature. Usually a two wire sensor, a 5Volt reference from PCM (Powertrain Control Module) and ground signal to PCM. This is different from a temperature SENDER (which usually operates the dash temperature gauge and operates in a similar way as the SENSOR, only it's a different circuit than what a P0115 is referring to). As the temperature of the coolant changes, the resistance changes on the ground signal to the PCM. When the engine is cold, the resistance is high. When the engine is warm, the resistance is low. If the PCM detects a voltage condition that seems abnormally low or high, P0115 will set.

Symptoms Symptoms of a P0115 DTC code may include:
  • MIL (Malfunction Indicator Lamp) illumination will always occur
  • Vehicle may be hard to start
  • May blow a lot of black smoke and run extremely rich
  • Engine may want to die or backfire in tailpipe
  • Engine may run lean and increased Nox emissions may be apparent (Requires gas analyzer)
  • Cooling fans may run all the time when they shouldn't be, or not at all when they should be
Causes Usually the cause can be traced to a bad ECT sensor, however that doesn't preclude the following:
  • Wiring or connector damaged at sensor
  • Open or short in reference or signal circuit
  • Open or short in signal circuit
  • Bad PCM
Possible Solutions 1. First, visually check the sensor for damage to wiring or connector and repair as necessary. Then, if you have access to a scanner, determine what the temperature of the engine is. (If you don't have access to a scan tool, using the dash temperature gauge may not be an effective way to determine coolant temperature. This is because the P0115 code is referring to the ECT SENSOR, and the dash gauge is operated by, usually a one-wire SENDER. Basically a different sensor that the code doesn't refer to.)

2. If the engine temperature is abnormally high, around 280 deg. F, that's abnormal. Unplug the sensor on the engine and see if the signal drops to, say, negative 50 deg. F. If it does, then it's a good bet the sensor is bad, internally shorted, causing a low resistance signal to be sent to the PCM. However if you want to be sure it's the sensor and not the wiring, there's a couple tests you can do. With the ECT sensor unplugged, check that you have 5 volts on the reference circuit with KOEO (Key on engine off). Also you can check the resistance of the sensor to ground using an Ohm meter. The resistance of a normal sensor to ground will vary a little depending on the vehicle, but basically, if the temp of the engine is around 200 deg. F., the resistance will be about 200 Ohms. If the temperature is about 0 def. F., the resistance will be over 10,000 Ohms. With this test you should be able to tell if the resistance of the sensor matches the temperature of the engine. If it's not accurate according to your engine's temperature, then you probably have a bad sensor.

3. Now, if the temperature of the engine according to the scanner is around 280 deg. F. and unplugging the sensor doesn't cause the reading to drop to negative 50 deg. F, but it stays at the same high temperature reading, then you'll need to repair the short on the signal circuit(ground) to the PCM. It's shorted directly to ground somewhere.

4. If your temperature reading of the engine according to the scanner is showing negative 50 deg. F or so, (and you don't live in the arctic!) unplug the sensor and check for a 5V reference present at the sensor.

5. If there isn't, then check at the PCM connector for proper 5V reference. If it's present at the PCM connector, then repair the open or short on 5V reference from PCM. If there is no 5V reference present at the PCM connector, then you're done with your diagnosis and you may have a PCM fault. 6. If the 5V reference circuit is intact, then check the ground signal to the PCM using the previous ground resistance test. If the resistance isn't normal for the temperature of the engine, then ohm the resistance of the ground signal to the PCM by removing the ground signal wire from the PCM connector. The wire should have no resistance, unplugged from the PCM to the sensor. If it does, repair open in the signal to the PCM. If it doesn't have any resistance on the ground signal wire and the resistance test of the sensor is normal, then suspect a faulty PCM.

Hope that helps, please rate me!

Feb 07, 2011 | 2001 Hyundai Santa Fe

2 Answers

This obd computer code po115 what does this mean?

this indicates a open or short-circuit in the engine coolant temperature sensor circuit......

so, assuming that there has been no wiring work going on, or other problems...i would be replacing the coolant temp sensor, as required.

Please vote if you liked this response.

Aug 20, 2010 | 1997 Mitsubishi Montero

1 Answer

Year 2001 XG300 P0115, P1159, P1191, P1193, P0115

P0115 - Engine Coolant Temp Sensr - open/short
P1159 - Variable Intake Motor Malfunction

P1191/P1193 Limp Home Valve - Low RPM

First, clean the throttle body and check for anything which might obstruct AIR FLOW to it.

The P1159 is the Variable Intake Motor Malfunction. this motor is either 'OPEN'... or 'CLOSED' position. It is located on/in the intake manifold (plenum) and is only opened when cruising... it is closed at idle. If it sticks 'OPEN' is can cause drivability issues.

Aug 10, 2009 | 2001 Hyundai XG300

2 Answers

Engine code p0115

replace the sensor and or check the wiring socket going to the sensor

Jun 02, 2009 | 2001 Hyundai Elantra

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