The coolant temperature sensor (DTOZh) for a UAZ Patriot with an automatic transmission (automatic transmission) has the following characteristics and purpose:
Specifications:
*Type: Negative Temperature Coefficient (NTC) Resistor
* Resistance at 20°C: 1.9 kOhm to 2.2 kOhm
* Measured temperature range: -40°C…+150°C
* Output voltage range: 0.5…4.5 V
Purpose:
DTOZH in a UAZ Patriot automatic transmission is designed to measure the temperature of the coolant in the engine and transmit this signal to the control unit (ECU). The ECU uses the DTOZ readings to control the cooling system, adjusting engine operating parameters such as the composition of the air-fuel mixture, ignition timing and injector opening time.
Location:
DTOZH on the UAZ Patriot automatic transmission is usually located in the thermostat housing or in the inlet pipe of the cooling system.
Operating parameters:
As the coolant temperature increases, the DTOZ resistance decreases, which leads to an increase in the voltage at the sensor output. The ECU interprets this change in voltage as an increase in temperature and adjusts engine operation accordingly.
Malfunctions:
A faulty DTOZ can lead to malfunctions in the cooling system and engine, such as:
* Engine overheating
* Insufficient engine warm-up
* Increased fuel consumption
* Unstable engine idling
Replacement:
If the DTOZH malfunctions, it must be replaced with a new one. The replacement process usually does not require special skills and can be done independently using a standard set of tools.