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Driver's Multiplex Control Unit

WARNING: This page is about a different car, the 2003 Acura 3.2TL and 2002 Acura 3.2TL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove driver's underdash fuse/relay box. See DRIVER'S UNDERDASH FUSE/RELAY BOX  under REMOVAL & INSTALLATION. Remove driver's multiplex control unit from driver's underdash fuse/relay box. Disconnect driver's multiplex control unit 22-pin connector. Inspect connectors and terminals. Check for bent, loose or corroded terminals. Perform driver's multiplex control unit input tests. See Fig 1 and Fig 2 . Repair as necessary and recheck system operation. If driver's multiplex control unit inputs are okay, go to next step.
  2. Reconnect driver's multiplex control unit to underdash fuse/relay box. Perform input tests as specified at back side of driver's fuse/relay box (backprobe). See Fig 1 and Fig 3 . Repair as necessary. If all tests are okay, reconnect driver's multiplex control unit 22-pin connector and go to PASSENGER'S MULTIPLEX CONTROL UNIT  .
Fig 1: Identifying Driver's Multiplex Terminal Connectors
G00215770Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Driver's Multiplex Control Unit Input Test (1 of 2)
G00215771Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 3: Driver's Multiplex Control Unit Input Test (2 of 2)
G00215772Courtesy of AMERICAN HONDA MOTOR CO., INC.
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