When an ABS brake is modulated which of the following is happening?

A) all hold-off air is dumped
B) all service application air is dumped
C) hold-off air is dumped until rate of wheel deceleration normalizes
D) service application air is cyclically dumped until rate of wheel deceleration normalizes

Modulated

Describes a process where the intensity, frequency, or amplitude of a signal is varied in a controlled manner, often for transmission.

Service Application Air

Pressurized air used in various systems within a vehicle, such as air brakes or suspension components.

Hold-off Air

The strategy of withholding airflow in certain systems or processes to regulate performance or achieve specific outcomes.