Horn Switch Test

NOTE:

SRS Components are located in this area. Review the SRS component locations (see COMPONENT LOCATION INDEX ), and precautions and procedures (see PRECAUTIONS AND PROCEDURES ) before doing repairs or servicing.
Check for blown No. A9 (20 A) fuse in the main under-hood fuse box. If it is blown, check for a faulty horn relay (see POWER RELAY TEST ); faulty horn, or short in horn circuit.

Turn the steering wheel 180° from the center position and remove the cover (A).

Fig 1: Identifying Horn Switch 2P Connector With Cover
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the horn switch 2P connector (B).
Connect horn switch 2P connector terminals No. 1 and No. 2 with a jumper wire. The horns should sound.
- If the horns sound, check or adjust the installation of the horn switch plate.
- If the horns do not sound, go to step 4.
Remove the jumper wire from the horn switch 2P connector.
Remove the steering column covers (see COLUMN COVER REMOVAL/INSTALLATION ).
Remove the driver's airbag assembly (see DRIVER'S AIRBAG REPLACEMENT ).
Connect cable reel connector C (20P) terminals No. 19 and No. 20 with a jumper wire. The horns should sound.
- If the horns sound, check the cruise control combination switch (see CRUISE CONTROL COMBINATION SWITCH TEST/REPLACEMENT ), if switch is OK, replace the cable reel sub-harness.
- If the horns do not sound, go to step 8.
  
  Fig 2: Identifying Cable Reel Connector C (20P) Terminals
  Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the cable reel connector A (20P).

Fig 3: Identifying Cable Reel Connector A (20P) Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Connect cable reel connector A (20P) terminals No. 9 and No. 10 with a jumper wire. The horns should sound.
- If the horns sound, replace the cable reel (see CABLE REEL REPLACEMENT ).
- If the horns do not sound, repair an open in terminal No. 9 or No. 10 wire, or a faulty relay control module.