TL V6-3.2L (2004)
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 control 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 1 P 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 driver's airbag assembly.
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If the horns do not sound, check these items:
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cable reel.
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an open in the wire (cable reel subharness).
