3.5RL (Driver's Multiplex Control Unit)

Remove underdash fuse box and remove driver's multiplex control unit. Check connector and terminals for damage, corrosion or improper contact. Repair as necessary. If connections are okay, perform driver's multiplex control unit input test. See Fig 2.

Fig 1: Passenger's Multiplex Control Unit Input Test

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Driver's Multiplex Control Unit Input Test

Courtesy of AMERICAN HONDA MOTOR CO., INC.