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Horn Switch Test

  1. Remove the steering column covers (see STEERING COLUMN REMOVAL AND INSTALLATION ).
  2. Disconnect the dashboard wire harness 20P connector (A) from the cable reel.
    Fig 1: Identifying Dashboard Wire Harness 20P Connector
    G05462657Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Using a jumper wire, connect the No. 4 terminal of the dashboard wire harness 20P connector to body ground.
    • If the horns sound, go to step 4.
    • If the horns don't sound, check these items:
      • No. 13 (20 A) fuse in the under-hood fuse/relay box.
      • Relay control module in the under-hood fuse/relay box.
      • Horns (see HORN TEST/REPLACEMENT  ).
      • An open in the wire.
  4. Reconnect the dashboard wire harness 20P connector (A) to the cable reel.
    Fig 2: Identifying Dashboard Wire Harness 20P Connector
    G05462658Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Remove the driver's airbag assembly (see DRIVER'S AIRBAG REPLACEMENT ), and disconnect the horn switch IP positive terminal from the driver's airbag assembly.
  6. Using a jumper wire, connect the cable reel side 1P connector (B) to body ground.
    • If the horns sound, replace the driver's airbag assembly.
    • If the horns do not sound, check these items:
      • Cable reel.
      • An open in the wire (cable reel subharness).