Driver's Multiplex Control Unit Input Test
- Remove driver's side kick panel. Unplug and remove driver's multiplex control unit from underdash fuse/relay block. Inspect connector and terminals for damage or corrosion. Repair as necessary and retest system. If connector and terminals are okay, go to next step.
- Using DVOM, perform control unit input test. See Fig 1 . If an input test indicates a problem, find and correct cause and retest system. If all input test results are okay, replace faulty multiplex control unit.