P2185 is a diagnostic trouble code (DTC) for “Engine Coolant Temperature Sensor 2 Circuit High“. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
Where is the temp control sensor located?
In most cars, the primary ECT sensor (ECT sensor 1) is installed near the thermostat in the cylinder head or block or on the thermostat housing. A second coolant temperature sensor could be installed in another part of the engine, or in the radiator.
What are the symptoms of a faulty coolant temperature sensor?
What Signs May Signal Your Coolant Temperature Sensor May Be Failing?
- Poor Fuel Economy. …
- Irregular Temperature Readings. …
- Black Smoke from Your Exhaust. …
- Your Engine is Overheating. …
- Your Check Engine Light is On.
What is ECT sensor 2 Circuit High voltage?
The ECT sensor is a thermistor that’s responsible for measuring the temperature of the coolant going through the engine. It’s typically located in a coolant passage in the cylinder head. This sensor’s resistance is high when the coolant temperature is low and its resistance is low when the coolant temperature is high.
How do you fix a coolant temperature sensor?
Zitat von Youtube: This is a sensor that actually goes to the computer and tells the computer if the engine is cold or hot. So what we're going to do first is we're going to disconnect our battery.
What happens when engine temperature sensor goes bad?
The coolant temperature sensor can fail and transmit cold signals to the computer. This action confuses the computer and stimulates it to enrich the fuel mixture unnecessarily. This can cause the fuel mixture to be vibrant such that during combustion, the fuel can’t be adequately consumed within the chamber.
Can a temp sensor affect engine starting?
The sensor will not cause a no start. It could cause a hard start and a rich or lean condition only.
Can you drive with a faulty coolant temperature sensor?
Yes, you can drive with a bad coolant temperature sensor. When the coolant temperature sensor goes bad the ECU of the car defaults to a static reading. But it is not recommended to keep driving with a bad engine coolant temperature sensor since it performs critical cooling, heating, and fuel adjustment functions.
How do you check a coolant temperature sensor?
Zitat von Youtube: They have four pins. For those the other extra pins are they send a signal to your temperature gauge on your dash. And that's why they have four pins.
How do you check a temperature sensor?
Submerge your temperature sensor in the hot water and wait a few seconds to let your multimeter take a reading. Write down your reading so you can easily reference it. A hot water reading should give you around . 25 volts.
How do I fix error code P2185?
What repairs can fix the P2185 code?
- A new ECT sensor.
- ECT connector or harness.
- Cooling system leak repair and fill.
- Thermostat replacement.
How is P0128 diagnosed?
The most common cause for P0128 is the engine coolant thermostat is stuck open. A simple way to diagnose this is to feel the radiator hose and monitor how hot the temperature of the coolant is when it starts flowing through the radiator hose.