TSX L4-2.4L (2005)
Horn Switch: Testing and Inspection
Horn Switch Test
1. Remove the steering column covers.
2. Disconnect the cable reel 13P connector (A) from the dashboard wire harness.
3. Using a jumper wire, connect the No. 1 terminal of the dashboard wire harness 13P connector to body ground.
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If the horns sound, go to step 4.
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If the horns don't sound, check these items:
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No. 13 (20 A) fuse in the under-hood fuse/relay box.
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Relay module in the under-hood fuse/relay box.
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Horns.
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An open in the wire.
4. Reconnect the cable reel 13P connector (A) to the dashboard wire harness.
5. Remove the driver's airbag assembly, and disconnect the horn switch 1P positive terminal from the cable reel (B).
6. Using a jumper wire, connect the cable reel side 1P connector (C) to body ground.
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If the horns sound, replace the horn switch plate.
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If the horns don't sound, replace the cable reel.
