Removing
To remove, follow the steps below.
1. Disconnect a wire from the negative plug of the storage battery.
Pic. 18.22. Coolant temperature sensor in the heater: 1 - bottom cover; 2 - glove box; 3 - side cover; 4 - bracket for fastening the coolant temperature sensor in the heater; 5 - coolant temperature sensor in the heater
2. Remove the bottom cover 1 (pic. 18.22).
3. Remove glove box 2.
4. Remove the side cover 3.
Pic. 18.23. Removing the bracket for mounting the coolant temperature sensor in the heater: 1 - heater unit; 2 - bracket for fastening the temperature sensor of the working fluid in the heater
5. Remove the heater coolant temperature sensor bracket from the base of the heater assembly by sliding it toward the front of the vehicle (pic. 18.23).
6. Remove sensor 5 (see fig. 18.22) coolant temperature in the heater and disconnect the electrical connector.
Examination
Pic. 18.24. Graph of the resistance of the coolant temperature sensor in the heater versus temperature
When measuring the resistance on the sensor connector pins at two or more temperature levels, the resistance values must match the curve of the graph shown in fig. 18.24.
Attention! The temperatures at which the test is carried out should not exceed the range shown on the chart.
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
Pic. 18.25. Installing the sensor mounting bracket on the base of the heater assembly: 1 - heater unit; 2 - limiter
1. Install the sensor mounting bracket on the base of the heater assembly (pic. 18.25).
2. Move the temperature sensor until it rests against the stop of the sensor mounting bracket.