Freightliner switches pressure business class cascadia century class columbia coronado fl series and sprinter delivery vans.
Freightliner m2 low air pressure switch location.
Apply and hold the service brake and watch the air gauge if the air starts dropping you ve got a leak.
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The low air buzzer would come on yet still maintain 125 psi.
This switch can be tested.
Control switch discharge air sensor main aux w oe boa91593.
There were no fault codes.
The resolution ended up being to replace the brake drag switch.
Park brake switch low air pressure switch engine ecu throttle pedal bulkhead module.
If the driver did a very hard stop the air buzzer would shut off.
Vin read more.
Chock the wheels very well.
If you re stumped here s what i d do fwiw.
2005 freightliner m2 low air pressure lamp and buzzer stays on all the time found 2 wire plug on amu disconnected replugged and also jumped with no change is there another low pressure switch.
New location is back wall behind driver s seat.
Even if the tanks are located in one place they are still 2 separate systems.
Customer stated the driver was getting a message on the dash stating park brake air low brakes may drag.
2005 freightliner m2 low air pressure lamp and buzzer stays on all the time found 2 wire plug on amu disconnected replugged and also jumped with no change is there another low pressure switch.
Release the parking brake.