Symptom: a Toyota Camry SXV20 mileage of 55,000 km, the owner does not reflect the hand brake but the hand brake light is always bright.
    Fault analysis: This phenomenon is common in the models are available, there are three possibilities: (1) brake oil cups lack of oil, (2) tail light bulb damage, 3) brake pads wear too thin.
    Brake oil in the car's braking system plays a vital role, when the driver when the brakes, from the foot pedal to step on the power, by the brake master cylinder piston, through the brake fluid to the energy transfer to the wheel , So that friction plate up, to stop the purpose of the vehicle forward. When the brake is stopped, return the spring to pull back the friction plate to its original position.
    Brake cups are on the line and off the assembly line, if the cup of brake oil below the line, it will be through the oil cup next to the sensor sensor this phenomenon, and through the instrument panel to reflect the brake lights. This situation as long as the oil cup can make up the brake oil can, but under normal circumstances, the brake oil is not suddenly dropped to the off the assembly line, in most cases the brake plate is too thin caused by the gap between the large, so that driving When the brakes are braked, the brake oil is lost from the gap.
    For this phenomenon check, look at the oil cup oil is insufficient, then there is the inspection of the tire brake disc.
    This Toyota Camry tail and hand brake lights, although controlled by a different sensor, but take a bus, so if the taillight hold a light bulb, it will cause the hand brake light is always bright.
    Troubleshooting:
    In the way into the workshop, the hand brake light is always on.
    Into the maintenance workshop, open the engine cover, found in the oil cup brake oil below the assembly line, inferred is caused by hand brake light causes light.
    Before troubleshooting the battery, belt, antifreeze, help oil and other engines to do a routine check and found that this car antifreeze loss, and suggested that owners replace the air filter. Because this fault is related to the braking system of the vehicle, the state of each wheel is checked.
    Remove the wheel to check the brake disc, wear the general situation, from the need to replace the standard is still about 3 mm, if not change can continue to travel about 10,000 km, after consultation with the owner, do not replace the brake disc. Zhang master also added: This car is better, and the owner of the driving habits, in accordance with the laws of the past, the vehicle opened to about 50,000 km, brake discs need to be replaced or repaired.
    Re-install the wheel and found that the rear wheel pressure is slightly lower than the standard 2.5 atmospheric pressure, make up after fetal gas. In the oil cup by adding brake oil, troubleshooting.
    Expert advice:
    Hand brake often bright in the car are likely to occur, the owner encountered in this case is often considered to be hand brake pull device failure. In fact, after this situation you can park the car on the roadside to stop, check the taillight bulb is not bright, and then look at the brake oil cup is loss of oil. Found that after the loss of oil, you can go to a small repair shop to make up some of the brake oil to continue driving, but must find time to go to the regular repair station inspection, because the back of the small fault is often hidden behind the big problems.