P2185 honda civic 2006




P2185 honda civic 2006

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  • Hi all. I have a 4-door Honda Civic LX The engine light came on last week. The mechanic's computer gave error codes P and P I replaced.

    Civinfo > 8th Generation Euro Honda Civic ( - ) > Engines and Transmission "P Engine Coolant temp sensor 2 circut high".

    Honda is a young Japanese auto-building company, it was founded in 1948. Now the concern, besides cars, also builds motorcycles, planes and is engaged in robotics. Many experts consider Honda cars to be one of the most reliable.

    This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to all newer vehicles (VW, Ford, Dodge, Chevrolet, etc.).

    P2185 honda civic 2006

    P2185 honda civic 2006

    Find More Posts by ezone. Find all posts by jayburtonboy. Send a private message to jayburtonboy. The mechanic's computer gave error codes P and P

    P2185 honda civic 2006

    P2185 honda civic 2006

    P2185 honda civic 2006

    P2185 honda civic 2006

    P2185 honda civic 2006

    P OBD-II Trouble Code: 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. This code indicates that the sensor is sending data to the PCM Powertrain Control Module indicating a cooler coolant temperature that may actually exist.

    The PCM compares the voltage readings of sensor 1, sensor 2, and how long the motor has been running. If the motor has been running for a time, the PCM concludes the coolant should be warmer than ambient temperature and uses this reasoning to determine which sensor is reading incorrectly and sets a code accordingly.

    P2185 honda civic 2006

    Usually a Check Engine Light is the only symptom that is observed. Connecting a scan tool and reading the scan tool data usually results in a quick diagnosis. The technician can simply compare the temperature reading of sensor 2 and compare this to the what the technician knows to be true.

    If the car is cold, the sensor should show how much and vice versa. In some cases, the sensor can just be out of specification with what the PCM expects to see. In this case, it will be necessary for the technician to remove the sensor and bench test it. Bench testing of this type of sensor requires a multimeter that can be set to ohms and something to heat the sensor up with.

    P2185 honda civic 2006

    Usually a small butane torch will do the trick. The multimeter is used to measure the sensor resistance while the torch is used to gently warm the sensor. There should be a proportionate change in resistance as the sensor is warmed. Depending on the manufacturer, each sensor will have a different temperature to resistance curve. This information will be supplied by the manufacturer. Failing to check the coolant level is easy to forget.

    A low coolant level can lead to many unpredictable symptoms and codes. The coolant level must be full, and the thermostat must be operating correctly before this code can be accurately diagnosed. The cooling system is the system that keep your engine from overheating. With two sensors, it can be confusing as to which sensor is sensor 1 and which one is sensor 2.

    At times, we make the mistake of replacing the wrong sensor. Determining which sensor is sensor 1 is not always as simple as it seems. Some manufacturers information is better than others. If a mechanic is unable to be sure which sensor is which, depending on their cost and difficulty to replace, it may be prudent to replace them both. Time should be taken to inspect the connector and the related harness. If the sensor bench tests good, it may be necessary check for continuity testing a wire for high resistance through the harness to the PCM.

    P2185 honda civic 2006

    This code usually is not problematic, as this code will only be used by manufacturers who choose to utilize two or more ECT sensors. This redundancy allows the manufacturer the ability to more effectively calculate air-fuel mixture under varying conditions, as well as redundancy if one sensor should fail. This is significant because the coolant temperature sensor is the primary sensor the PCM uses to decide what operational mode to be used. Whether it be a cold start up condition or fine tuning of the air-fuel mixture.

    Depending on the programming the manufacturer chooses to use, if the sensor that this code represents fails, the vehicle may not start. If you do manage to get it to run, it will run excessively rich with black smoke out of the tailpipe. This code has the potential to render a vehicle undrivable, but mostly likely will only result in a Check Engine Light.

    2006-2015 Honda Civic Engine Coolant Temp Sensor Replacement (ECT 1 & 2)



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