 MOMO horn button, Help, Horn not working |
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| xperu |
 Apr 30 2018, 03:27 PM
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#1
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TEXAS  Group: Members Posts: 597 Joined: 13-June 06 From: League City Texas Member No.: 6,213 Region Association: None 
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I drive a 74, I installed a MOMO Sport wheel sometime back but never hooked up the horn. I want to make the car street legal, so I need some help.
Currently the horn button is connected to a black wire so that's the long and short of it. So is there a thread that might help. I looked for a MOMO button connection thread, but no luck. I have a MOMO adaptor of course. Is there something I need to know or do I have the wrong wire hooked up. Thanks for your help. Mike |
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| Big Len |
May 2 2018, 05:28 PM
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#2
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Senior Member Group: Members Posts: 1,747 Joined: 16-July 13 From: Edgewood, New Mexico Member No.: 16,126 Region Association: Southwest Region |
Got the same issue. Touched the wire to the column and the horn works, so guessing the button is shot. Ordered a new one.
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| xperu |
May 4 2018, 11:34 AM
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#3
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TEXAS Group: Members Posts: 597 Joined: 13-June 06 From: League City Texas Member No.: 6,213 Region Association: None
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QUOTE(Big Len @ May 2 2018, 06:28 PM)  Got the same issue. Touched the wire to the column and the horn works, so guessing the button is shot. Ordered a new one. OK, so I checked out my horn button and it's fine, I also checked the black wire coming out of the column and it's hot when the key is on. Still my horns don't work. Is there a fuse or something else I need to consider? I am removing the front bumper to get access to the horns, but I think it must be something else between the horn button and the horns. I pulled the #4 relay at the fuse box, when pushing the horn button I felt the relay working. To make sure I installed another relay and it worked the same....... But no horn. Got 2 horns on my car, neither work. thanks for your help. Mike |
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| xperu |
May 4 2018, 06:55 PM
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#4
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TEXAS Group: Members Posts: 597 Joined: 13-June 06 From: League City Texas Member No.: 6,213 Region Association: None
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QUOTE(xperu @ May 4 2018, 12:34 PM) QUOTE(Big Len @ May 2 2018, 06:28 PM) Got the same issue. Touched the wire to the column and the horn works, so guessing the button is shot. Ordered a new one. OK, so I checked out my horn button and it's fine, I also checked the black wire coming out of the column and it's hot when the key is on. Still my horns don't work. Is there a fuse or something else I need to consider? I am removing the front bumper to get access to the horns, but I think it must be something else between the horn button and the horns. I pulled the #4 relay at the fuse box, when pushing the horn button I felt the relay working. To make sure I installed another relay and it worked the same....... But no horn. Got 2 horns on my car, neither work. thanks for your help. Mike Any suggestions? |
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| jcd914 |
May 4 2018, 08:52 PM
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#5
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
QUOTE(xperu @ May 4 2018, 05:55 PM) QUOTE(xperu @ May 4 2018, 12:34 PM) QUOTE(Big Len @ May 2 2018, 06:28 PM) Got the same issue. Touched the wire to the column and the horn works, so guessing the button is shot. Ordered a new one. OK, so I checked out my horn button and it's fine, I also checked the black wire coming out of the column and it's hot when the key is on. Still my horns don't work. Is there a fuse or something else I need to consider? I am removing the front bumper to get access to the horns, but I think it must be something else between the horn button and the horns. I pulled the #4 relay at the fuse box, when pushing the horn button I felt the relay working. To make sure I installed another relay and it worked the same....... But no horn. Got 2 horns on my car, neither work. thanks for your help. Mike Any suggestions? Check the wiring at the horn relay. Terminal 85 is the switched ground from the horn button. Terminal 86 is the power to operate the relay from fuse 8. Terminal 30 power from fuse 10 to operate the horn. Terminal 87 is the wire to the horns. Since you can feel the relay react to grounding the wire at the steering wheel, terminals 85 & 86 seem to be good. Make sure you have power at 30 and then check the wiring to the horns. The horns also require good grounds. Jim |
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| xperu |
May 4 2018, 09:31 PM
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#6
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TEXAS Group: Members Posts: 597 Joined: 13-June 06 From: League City Texas Member No.: 6,213 Region Association: None
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QUOTE(jcd914 @ May 4 2018, 09:52 PM) QUOTE(xperu @ May 4 2018, 05:55 PM) QUOTE(xperu @ May 4 2018, 12:34 PM) QUOTE(Big Len @ May 2 2018, 06:28 PM) Got the same issue. Touched the wire to the column and the horn works, so guessing the button is shot. Ordered a new one. OK, so I checked out my horn button and it's fine, I also checked the black wire coming out of the column and it's hot when the key is on. Still my horns don't work. Is there a fuse or something else I need to consider? I am removing the front bumper to get access to the horns, but I think it must be something else between the horn button and the horns. I pulled the #4 relay at the fuse box, when pushing the horn button I felt the relay working. To make sure I installed another relay and it worked the same....... But no horn. Got 2 horns on my car, neither work. thanks for your help. Mike Any suggestions? Check the wiring at the horn relay. Terminal 85 is the switched ground from the horn button. Terminal 86 is the power to operate the relay from fuse 8. Terminal 30 power from fuse 10 to operate the horn. Terminal 87 is the wire to the horns. Since you can feel the relay react to grounding the wire at the steering wheel, terminals 85 & 86 seem to be good. Make sure you have power at 30 and then check the wiring to the horns. The horns also require good grounds. Jim I've been Enstine'd! Really Jim you laid it out very well, I will Take a look in the morning. You laid laid it out very well. Thanks again Jim. Mike ' |
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Posts in this topic
xperu MOMO horn button Apr 30 2018, 03:27 PM
theer It's a pretty simple circuit. I believe that w... Apr 30 2018, 03:38 PM
xperu
It's a pretty simple circuit. I believe that ... Apr 30 2018, 04:06 PM john77 Does your momo hub adaptor have the horn ring on t... Apr 30 2018, 07:53 PM xperu
Does your momo hub adaptor have the horn ring on ... May 2 2018, 09:10 AM GeorgeRud Just touch the wire at the steering wheel to the h... May 2 2018, 11:54 AM xperu
[quote name='xperu' post='2606011... May 4 2018, 09:45 PM jcd914
I pulled the #4 relay at the fuse box, when pus... May 5 2018, 04:09 PM jcd914 I have a bunch of hours reworking the wiring in my... May 4 2018, 10:19 PM Rob-O Before you go running down the rabbit hole of chec... May 4 2018, 11:33 PM xperu
Before you go running down the rabbit hole of che... May 5 2018, 08:07 AM Rob-O Mine looks like this. Snap a photo of what you ha... May 5 2018, 10:14 AM xperu
Mine looks like this. Snap a photo of what you h... May 5 2018, 10:51 AM Rob-O Well, you can disassemble the button and pop rivet... May 5 2018, 11:52 AM xperu
Well, you can disassemble the button and pop rive... May 5 2018, 01:15 PM Rob-O What you can do that’s easy is put power to the ... May 5 2018, 03:38 PM xperu
I drive a 74, I installed a MOMO Sport wheel some... May 10 2018, 08:33 AM Big Len Never would have guessed it would have been the ho... May 10 2018, 08:39 AM |
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