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There are several reasons why the ABS+ handbrake light is on:
1. The wheel speed sensor is dirty, or the error is out of tolerance;
2. The brake pads are worn to the limit;
3. Lack of brake fluid;
4. The power generation of the generator is too high or too low;
5. ABS failure.
The easiest way to determine is to test it through a special computer. If you don't have a dedicated computer, it's more troublesome. First eliminate the doubt, and then eliminate the 4th doubt, if there is a phenomenon of light at the same time, it is necessary to support the car, clean the wheel speed sensor of the 4 wheels, and then measure its value with a multimeter.
Extended information: ABS was invented to avoid the above-mentioned phenomenon of emergency brake slippage. Vehicles equipped with the ABS system use wheel sensors to monitor whether the wheels are locked.
When the wheels are locked, the ABS system will intervene under the braking system to release the pressure of the brakes, let the locked wheels brake go, let the wheels roll again, let the vehicle regain the ability to handle, and then restore the pressure of the brakes, so that the vehicle continues to slow down.
In this way, with the concept of time-sharing, the braking system of the vehicle is constantly braked-released-braked-released, so that the vehicle can maintain the ability to control between the braking intermittents, so that the vehicle can avoid obstacles and avoid accidents.
The modern ABS system can perform several to more than a dozen of the above movements within 1 second, so that the slippage of the vehicle is minimized, so as to maintain the good braking effect while maintaining the vehicle's handling and dodging ability.
In the event of an emergency braking, the driver only needs to press the pedal at the fastest speed, and ABS will intervene in the operation of the brake in a timely manner. When the ABS system is actuated, the brake pedal will be repulsed due to the repeated release of pressure in the braking system.
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Summary. The electronic parking brake system malfunctioned, causing the fault light to come on. This can be caused by a faulty sensor, a faulty electronic control unit, or a faulty electronic handbrake motor, etc.
04 BMW handbrake lights up.
Hello 04 BMW 730 electronic parking brake fault light is on, in this case, the general electronic parking brake and battery voltage are caused by failure.
The electronic parking brake system malfunctioned, causing the malfunction to be resistant to orange lights up. This may be caused by a failure of the sensor of the side shed, the failure of the electronic control unit of Changqituan, or the failure of the electronic handbrake motor.
Insufficient battery voltage: The electronic handbrake system needs sufficient power support, and if the battery voltage is insufficient, it may also cause the electronic handbrake fault light to illuminate.
The triangular fault light is on.
It's a fault indicator.
What is the fault?
Electronic parking brake malfunction.
There is also a battery voltage failure.
What is the reason why the electric tailgate can't be raised.
The tailgate won't go up for long.
Whether this failure is transient or prolonged.
It's been a long time.
In this case, there is usually a problem with the power supply and sensors.
The power tailgate needs to be powered to work properly, and if there is a problem with the power supply, such as insufficient battery power or road failure, the electric tailgate will not be able to rise.
Power tailgates are usually equipped with on/off sensors and anti-pinch sensors, and if the imitation sensor fails, for example if the sensor is damaged or the sensor is not in good contact, the power tailgate button will not be able to rise.
The motor has a sound, but it can't rise.
If the motor fails, such as a damaged motor or a damaged motor drive gear, it will cause the pure electric tailgate to fail to rise.
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