I teach you how to test the brake light switch of any car with a multimeter also called a sensor, bulb or stop switch to know if it works correctly or is no longer useful and needs to be changed. In this case it is the brake light switch of a Nissan Tiida.
The function of the brake light switch is to send a signal to the computer when the brake pedal is pressed and with that reading it decreases the engine speed and also turns on the rear taillight bulbs to indicate to drivers that the car is reducing speed or coming to a complete stop.
When the brake light sensor is already damaged, the following faults will occur in the car: loss of engine power, the brake lights stay on at all times or do not come on, the car remains braked, the lever The gear shift cannot be moved in automatic transmissions and the yellow check light on the instrument panel comes on and when scanning the fault code p1805 appears.
To solve the failures caused by the brake light switch, you have to do the following: check the fuse, check that the cables are not broken and check that the harness is not broken, clean the sensor with an electrical component cleaner and change the sensor because it is short circuited or already damaged,
Негізгі бет HOW TO TEST THE BRAKE LIGHT SWITCH OF ANY CAR (SENSOR OR STOP SWITCH)
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