Tip: You can check the serviceability of the temperature sensor by comparing its readings on the instrument panel with a household liquid thermometer. Violations in temperature readings can be caused by increased electrical resistance in the connection of the contacts of the wiring block with the sensor terminals.
To perform the work you need a multimeter (in voltmeter mode).
Sequence of execution
1. Prepare the car for work (see "Preparing the car for maintenance and repair").
2. Disconnect the wiring harness connector from the sensor.
3. Turn on the ignition and measure the voltage at the terminals of the wiring harness connector block.
Recommendation: The voltage should be about 3.5 V. If the voltage does not reach the block, the power supply circuit or instrument panel is faulty. You can verify the sensor is faulty by replacing it with a known good one.
4. Remove the sensor from the bracket and take it off.
5. Replace the faulty sensor with a similar one (2115-3828210/ PA6.GF15).
6. Install the sensor in reverse order.