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Brake light implausible signal

Brake lights signal stopping to other drivers.

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Costs

Every car issue can be caused by different things. Here are the most common ones

Most Expensive

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Potential Causes

  • Spare parts
  • Work time
Moderate costs

max.

Potential Causes

  • Spare parts
  • Work time
Moderate costs

max.

Potential Causes

  • Spare parts
  • Work time
Moderate costs

max.

Potential Causes

  • Spare parts
  • Work time
Cheapest case

max.

Potential Causes

  • Spare parts
  • Work time

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Discussions

User of our Carly Community asked the following questions regarding that fault:

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Probability

Based on the values and symptoms you have entered, a crude estimation of the probability of this problem can be made

high-probability

HIGH

Typical consequences

If this defect is detected, it may lead to the following problems:

  • Malfunction of safety relevant systems
  • Failure of the general inspection (may not apply in your country)

Function brake light switch

The brake light switch is responsible for turning the brake lights on and off as soon as the driver operates the brake pedal. Placed directly behind the brake pedal, it is attached to the brake pedal with a plastic pin. When the brake pedal is operated, the plastic pin is retracted into the brake light switch, closing the circuit and sending the signal to the control unit.

The control unit responds to this signal by directing the current to the brake lights. It also provides important information to other systems in the vehicle, such as the anti-lock braking system and electronic stability control.

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