Horn Not Working??
06-01-2010, 12:26 AM
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1999 Mercedes ML430
Horn Not Working??
I have a 1999 ML430 and the horn is not working. I replaced the front driver side headlight and noticed after completing that the horn no longer was working. I've checked the fuse and it is still good. I'm thinking that the horn may be bad, because when you press the horn, you can here clicking underneath the hood.
If anyone can help out with some suggestions, I would greatly appreciate it. Many thanks in advance!
If anyone can help out with some suggestions, I would greatly appreciate it. Many thanks in advance!
06-01-2010, 12:41 AM
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His mama. Traded y0 mama in because she was squeaking.
Horn not working. Watch for finger. 
See if you've got power going to the horn leads. If you do, then horn is bad. If you don't, you may have a short between the relay (I presume it's a relay'd system since you're hearing a click) and the horn leads that connect to the horn.
See if you've got power going to the horn leads. If you do, then horn is bad. If you don't, you may have a short between the relay (I presume it's a relay'd system since you're hearing a click) and the horn leads that connect to the horn.
06-02-2010, 08:17 AM
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1999 Mercedes ML430
I have checked the relay, by switching it with the fuel pump relay, and it seems to still be good. I will try checking the connections this afternoon.
