EGR Valve
Secondary Air Pump
Thermostat Housing
Oil Cooler
Fuel Pressure Regulator
Blower Resistor
Heater Valve
Ignition Coil
Air Flow Sensor
Headlight Leveling Sensor
Lambda Sensor
Temperature Sensor
ABS sensor
Brake Light Switch
Oil Pressure Switch
Throttle Body
Auxiliary Water Pump

Brake Light Switch

What They Do
The brake light switch is connected to the brake pedal of the car. When you step on the brake pedal, the brake lights turn on.

Failure Symptoms
Brake lights not working.
Not being able to shift out of Park.