Brake pedal sensor on Lada Granta with automatic transmission (automatic transmission):
Location:
*Located under the brake pedal inside the car.
* Attached to the brake pedal bracket with bolts.
Sensor type:
* Typically consists of two reed contacts that open when the brake pedal is released and close when the brake pedal is pressed.
Function:
* Sends a signal to the automatic transmission electronic control unit (ECU) when the brake pedal is depressed.
* The ECU uses this signal to change gears and determine when to turn on the brake lights.
Specifications:
* Sensor type: two-pin reed switch
* Operating voltage: 12V
* Contact resistance: closed < 0.1 ohm, open > 1000 ohm
* Switching current: up to 0.5 A
Symptoms of malfunction:
* The ‘CHECK ENGINE’ lamp on the instrument panel lights up
* Errors in the automatic transmission system
* Incorrect gear shifting
* No brake lights when you press the brake pedal
Replacing the brake pedal sensor:
1. Disconnect the negative terminal of the battery.
2. Locate the sensor under the brake pedal.
3. Unscrew the sensor mounting bolts.
4. Disconnect the electrical connector from the sensor.
5. Install the new sensor in reverse order.
6. Connect the negative terminal of the battery.
7. Conduct diagnostics of the automatic transmission system and brake system to reset possible errors.