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FINDING THE STEERING COLUMN HORN WIRE

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Old Feb 27, 2023 | 04:15 PM
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FINDING THE STEERING COLUMN HORN WIRE

ok so i bought a train horn and don't want to tap off the stock truck horns in the front grill . ( using 2 relays ---car horn relay & train relay would cause a delay)

so can anyone tell me how to find the steering column horn wire, which i believe grounds this wire when you press the horn on the wheel

P.s. --- 2020 f-250

update --been told bcm module (passenger right floor ) controls the horn relay in the engine compartment---so now i think i will have to tap into the coil of this relay to activate the train horn relay
 
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Old Feb 27, 2023 | 05:30 PM
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Yeah, wiring in the steering wheel and column are all multi-plex, do more than one task, so don't try and tap anything in there.

If I were you, I'd sure just run the train horn separately.
 
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Old Feb 27, 2023 | 06:19 PM
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One relay actuating another will cause a minute amount of delay, like less than a second.
 
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