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International Automotive Technicians Network
Re: Freightliner brake lights
Posted to HD/Fleet Forum on 2/1/2018

On an 06 M2, the low pressure switches would be in switch module A on the rear crossmember. It is the large one with the 6 pin connector. It also has SWA cast into the plastic. You must replace this module if the switch is bad as there are no internal repairs.... Login to read more.