Headlight Control Unit

NOTE: Several different wires have the same color. They have been given a number suffix to distinguish them. For example, Red/Yellow 1 and Red/Yellow 4 are not the same.

Remove the bulkhead panels and disconnect the 18-P connector from the control unit. Check all wires for an open. Test input at the harness pins. See Fig 2 . For terminal identification, see Fig 1 . Replace the control unit if all input and component tests show no problem with connector wiring or components.

Fig 1: Identifying Control Unit Connector Terminals

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Retractable Headlight Control Unit Input Test

Courtesy of AMERICAN HONDA MOTOR CO., INC.