FixVault

Trouble Shooting: 3.2TL

  1. Remove driver's multiplex control unit from underdash fuse/relay box. Inspect connectors and terminals. Check for bent, loose, or corroded terminals. Repair as necessary and recheck system operation. If connectors and terminals are okay, perform driver's multiplex control unit input tests. See Fig 1 . If input tests are okay, go to next step.
  2. Remove passenger's multiplex control unit from passenger's underdash fuse/relay box. Disconnect connectors. Inspect connectors and terminals. Check for bent, loose, or corroded terminals. Repair as necessary and recheck system operation. If connectors and terminals are okay, perform passenger's multiplex control unit input tests. See Fig 2 . If input tests are okay, go to next step.
  3. Remove driver's door panel. Disconnect door multiplex control unit connectors. Inspect connectors and terminals. Check for bent, loose, or corroded terminals. Repair as necessary and recheck system operation. If connectors and terminals are okay, perform driver's door multiplex control unit input tests. See Fig 3 . If input tests are okay, go to next step.
  4. If all input tests are okay, one of the control units may be intermittently at fault. Substitute a known-good control unit for the one most likely at fault and recheck system. If system works properly, replace original control unit. If a malfunction still exists, substitute a known-good control unit for the next most likely to be at fault. Recheck system operation. If system works properly, replace original control unit. If a malfunction still exists, substitute a known-good control unit for the next most likely to be at fault. Recheck system operation.
Fig 1: Driver's Multiplex Control Unit Input Test (3.2TL)
G99F50117Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: Passenger's Multiplex Control Unit Input Test (3.2TL)
G99G50118Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 3: Door Multiplex Control Unit Input Test (3.2TL)
G99H50119Courtesy of AMERICAN HONDA MOTOR CO., INC.