Door Multiplex Control Unit Input Test
- Remove door multiplex control unit from passenger's underdash fuse/relay block. See DOOR MULTIPLEX CONTROL UNIT
under REMOVAL & INSTALLATION. Check door multiplex control unit and all pertinent connectors for loose, damaged or corroded terminals. See Fig 1
. If problem exists, repair connectors as necessary. If problem does not exist, go to next step.
- With door multiplex control unit still disconnected, perform input tests at appropriate door multiplex control unit terminals. See Fig 1
-Fig 2
. If any input is not as specified, repair indicated problem. If all inputs are as specified, go to next step.
- Substitute known-good control unit for control unit most likely at fault and retest system. If system works properly, the replaced control unit was at fault. If system still does not work properly, repeat procedure until faulty control unit is located.
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Courtesy of AMERICAN HONDA MOTOR CO., INC.