Brakes - ABS DTC's 52, 54, VTM-4 DTC 44 Or All
ABS DTC 52,54, VTM-4 DTC 44 or All SetTroubleshooting a 01-02 MDX for any or all of these DTCs?
^ ABS DTC 52 (motor stuck off)
^ ABS DTC 54 (main relay stuck off)
^ VTM-4 DTC 44 (VTM-4 relay) Before you go and replace the ABS modulator control unit or the VTM-4 control unit, first check the WHT wire at the positive battery terminal. It's the power supply for the auxiliary fuse box next to the battery. If that wire is loose or there's a bad connection, those DTCs can set. A bad connection can be intermittent or continuous. To fix this problem, repair the wire as needed, and clear the DTC(s).