System and Method for Spring Brake Monitoring for Truck-to-Trailer Electronic Brake System (EBS) Request Disabling

A non-transitory computer-readable storage medium storing a computer program having instructions that, when executed by one or more processors in a towed vehicle in communication with a towing vehicle, cause the one or more processors, individually or in combination, to:

• receive, from the towing vehicle, an electronic brake signal to apply a service brake of the towed vehicle;
• determine whether pressurized air is being supplied to a spring brake of the towed vehicle to release the spring brake;
• in response to determining that pressurized air is being supplied to the spring brake of the towed vehicle to release the spring brake, cause the service brake of the towed vehicle to be applied;
• and
• in response to determining that pressurized air is not being supplied to the spring brake of the towed vehicle to release the spring brake, take no action in response to the electronic brake signal to apply the service brake of the towed vehicle.