#COOLANT TEMPERATURE SWITCH CODE#

The advantages of bimetallic temperature switch mainly include compact size and less cost whereas its disadvantages mainly include less accuracy, prone to vibrations & shocks, not handling high temperatures and its performance will get affected when the ambient temperature changes. Here, the expansion of metal or its contraction mainly depends on the temperature coefficient which means, the metals at a similar temperature have different changes within the physical dimension. The temperature coefficient of each and every metal is different, so it shows the main relationship between the change within the metal’s physical dimension & the temperature that causes it. These switches are categorized into two types mechanical temperature switches and electronics temperature switches. Pressure resistance typically min 40bar to maxi 300bar.The temperature switch specifications include the following. So these variations in temperature can be used to activate a switching mechanism. Similarly, if the switch detects a decrease in temperature then electrical contacts will be closed. Once the sensing probe in this switch detects an increase in temperature, then it opens the electric contacts. The function of a temperature switch is to trigger when changes in temperature occur. The working of a temperature switch mainly depends on the variations of temperature taking place within an enclosed space. The spindle movement is moved toward the switch & causes ON & OFF action based on the set point of the switch. So the increase in the temperature sensing bulb will compress the bellows & moves the spindle up until the force of spring as well as the pressure of bellows are in equilibrium. Once temperature increases, the pressure within the bellows increases. ConstructionĪs shown in the above diagram, the fluid within the temperature sensing bulb responds to variations in temperature. The construction diagram of the temperature switch is shown below.

#COOLANT TEMPERATURE SWITCH CODE#

It is highly suggested that you consult with a professionally trained mechanic prior to any automotive repair, and that you follow all vehicle manufacturer and EPA guidelines for removal, replacement, diagnostics, OBD II code clearing, ECU, and PCM relearn procedures.The different components used in this switch mainly include switch case, range nut, range spring, main spindle, bollows, capillary, and temperature sensing bulb. Walker Products will not be held responsible for any use of this information. The codes listed for this product type are common instances that may relate to your vehicle and should be used as a guide only. OBD II is now the standard in diagnosing vehicle emissions, which was implemented by all automotive manufacturers in 1996. In an effort to reduce vehicle emissions, the Environmental Protection Agency (EPA), mandated that all vehicles manufactured after 1996 would be equipped with OBD II (On Board Diagnostics 2) technology. The following OBD II error codes are the most commonly found with this product type.

Poor idle (necessary to pump the gas pedal to keep vehicle running).Black smoke coming from vehicle’s exhaust.

Symptoms of a failing Engine Coolant Temperature Sensor may include: It may turn the cooling fan off or on, open the exhaust gas recirculation or communicate the need for a richer fuel mixture.Ĭommon causes of Engine Coolant Temperature Sensor failure include: The vehicle’s computer will use this information to adjust certain engine functions to keep engine temperature at an ideal level. This gives an indication of how much heat the engine is giving off. The Engine Coolant Temperature Sensor (CTS or ECT) uses electrical resistance to measure the temperature of the coolant/antifreeze mixture in the cooling system.

Coolant temperature switch