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Passenger's Multiplex Control Unit

  1. Remove passenger's underdash fuse/relay box. See PASSENGER'S UNDERDASH FUSE/RELAY BOX  under REMOVAL & INSTALLATION. Remove passenger's multiplex control unit from passenger's underdash fuse/relay box. Disconnect passenger's multiplex control unit 22-pin connector. Inspect connectors and terminals. Check for bent, loose or corroded terminals. Perform passenger's multiplex control unit input tests. See Fig 1 . Repair as necessary and recheck system operation. If passenger's multiplex control unit inputs are okay, go to next step.
  2. Reconnect passenger's multiplex control unit to underdash fuse/relay box. Perform input tests as specified at back side of passenger's fuse/relay box (backprobe). See Fig 2 . Repair as necessary. If all tests are okay, reconnect passenger's multiplex control unit 22-pin connector and go to DOOR MULTIPLEX CONTROL UNIT  .
Fig 1: Passenger's Multiplex Control Unit Input Test (1 Of 2)
G00032378Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Passenger's Multiplex Control Unit Input Test (2 Of 2)
G99B50022Courtesy of AMERICAN HONDA MOTOR CO., INC.
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