In depth horn wiring help needed.

[mikeamick]

Bought a 2020 ford ranger xlt extended ( Salvage title) beautiful and love it. ($ 13,000 - 65000 mi)

He said he didn't put a horn in it yet, @ $ 15 for a horn I said I would take care of that.

I found a small harness and connector right above where the horn goes. Pretty sure it's the right one.
But when the horn is pushed, there is no power at this connectors end.
The terminal on the connector is connected to ground, but the other one doesn't seem to be connected

When I put my finger on the relay and push the horn button, I can feel the relay engage. But no power goes
to the connectors other pin.

To trouble shoot this, it would really help if I had the pin number where the horn comes into the BCM.
If have to unwrap some harness, it would help to know which header plug and even pin is the horn.

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[airline tech]

Check Fuse #48 in the BJB, if good press and hold the Horn and check for power on both sides of the fuse.

 

[mikeamick]

Thanks airline tech, I'll try that.

 

[KTS]

Bought a 2020 ford ranger xlt extended ( Salvage title) beautiful and love it. ($ 13,000 - 65000 mi)

He said he didn't put a horn in it yet, @ $ 15 for a horn I said I would take care of that.

I found a small harness and connector right above where the horn goes. Pretty sure it's the right one.
But when the horn is pushed, there is no power at this connectors end.
The terminal on the connector is connected to ground, but the other one doesn't seem to be connected

When I put my finger on the relay and push the horn button, I can feel the relay engage. But no power goes
to the connectors other pin.

To trouble shoot this, it would really help if I had the pin number where the horn comes into the BCM.
If have to unwrap some harness, it would help to know which header plug and even pin is the horn.

Bought a 2020 ford ranger xlt extended ( Salvage title) beautiful and love it. ($ 13,000 - 65000 mi)

He said he didn't put a horn in it yet, @ $ 15 for a horn I said I would take care of that.

I found a small harness and connector right above where the horn goes. Pretty sure it's the right one.
But when the horn is pushed, there is no power at this connectors end.
The terminal on the connector is connected to ground, but the other one doesn't seem to be connected

When I put my finger on the relay and push the horn button, I can feel the relay engage. But no power goes
to the connectors other pin.

To trouble shoot this, it would really help if I had the pin number where the horn comes into the BCM.
If have to unwrap some harness, it would help to know which header plug and even pin is the horn.

[/GN-WH

Thanks airline tech, I'll try that.

 

[mikeamick]

That was really cool posting that KTS, I'm sorry to say I have a maint manual that has that diagram. The problem is there doesn't seem to be continuity from the relay to the horn. I was hoping someone had the pinout for the big junction plugs that plug into the BJB to help me troubleshoot the problem.

After i get outside today, I am going to try Airline tech's fuse check.

 

[RangerBill]

That was really cool posting that KTS, I'm sorry to say I have a maint manual that has that diagram. The problem is there doesn't seem to be continuity from the relay to the horn. I was hoping someone had the pinout for the big junction plugs that plug into the BJB to help me troubleshoot the problem.

After i get outside today, I am going to try Airline tech's fuse check.

This is from a 2019 manual.

 

[mikeamick]

Bingo !!! There it is, don't know what manual this is from, but it's a good one.
thanks RangerBill

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