2007 freightliner m2 with mbe900. ac not working. new controller in dash. have no power to the plug at the pressure switch. clutch works when 12v applied to plug. have 12v coming in into bulkhead MODULE from dash harness at ac clutch request pin b6-b7 but nothing coming out of engine harness plug a/c clutch pin b2-m. can anybody help me figure this out?
a/c need help diagnosing
Discussion in 'Freightliner Forum' started by strayauto82, Jun 4, 2026.
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