4 ohm speakers causing code??
Thread Starter
|
Road Master
Joined: Sep 2007
Posts: 987
Likes: 2
From: Sierra Nevada Mountains of N. Calif
4 ohm speakers causing code??
When the dealer did my motor upgrade they enabled that thinga mabob that makes the back cyclinder cut out. So I rode to the dealer this morning and had them remove it, which they did for free while I waited. When the bike was finished the service writer came and found me while I was looking at all the accessories in their store with glazed over eyes and drool.
The service writer told me I had a code that was triggered because of having 4 ohm speakers instead of 2 ohm speakers. He said not to worry about it and they cleared the code but asked me to remember and tell who ever works on the bike in the future so they know why the code appears.
First of all, are the speakers somehow tied in to the self diagnostic system?? I was skeptical and thought he was going to try to sell me something but he didn't.
And second, can I have any codes stored without the check light coming on?? The light has never come on.
I dont know, just thought this was weird!
The service writer told me I had a code that was triggered because of having 4 ohm speakers instead of 2 ohm speakers. He said not to worry about it and they cleared the code but asked me to remember and tell who ever works on the bike in the future so they know why the code appears.
First of all, are the speakers somehow tied in to the self diagnostic system?? I was skeptical and thought he was going to try to sell me something but he didn't.
And second, can I have any codes stored without the check light coming on?? The light has never come on.
I dont know, just thought this was weird!
Road Master
Joined: Jul 2007
Posts: 792
Likes: 0
From: Niagara Falls, NY
I cannot see how a 4ohm speaker would cause anything worng with the head unit. Unless it was either hooked up and a dead short occured. OE on yours is 2ohm, thus a 4ohm is making the radio work less not harder. It is true the ECM can store codes and not trip a MIL light. Reason a MIL (malfunction indicator lamp) would be tripped is that a problem occured more than a predetermined amount, ie more than once in a cycle. If the event happened once then the computer would make note of it and store it in the ecm. Newer cars do this quite often. Usually if the problem does not happen in a certain amount of on/off then it clears itself.
Seasoned HDF Member
Joined: Apr 2006
Posts: 10,675
Likes: 95
From: Billings,Mt.
With the ARC set up in your sig.,I dont see how the ECM can detect this.
The speaker wires from the head unit go directly to the amp then to the speakers.
Has anyone else that installed the ARC amp or another brand had codes like this?
I have the same set up with no problems.
Maybe Firecap could chime in.
The speaker wires from the head unit go directly to the amp then to the speakers.
Has anyone else that installed the ARC amp or another brand had codes like this?
I have the same set up with no problems.
Maybe Firecap could chime in.
Tourer
Joined: Aug 2005
Posts: 449
Likes: 0
From:
Hey
The radio looks for the 2 ohm speaker load directly on its speaker wires. With any amp present, the radio speaker wires send input signal to the amplifier, and the amp powers the speakers. The amplifier is now what "sees" the load-the radio sees nothing, so a code is created as the bikes ECM "assumes" the speakers are blown or as the bike says "open"
I have seen this with the HD Screamin Eagle amp as well.--PEZ
The radio looks for the 2 ohm speaker load directly on its speaker wires. With any amp present, the radio speaker wires send input signal to the amplifier, and the amp powers the speakers. The amplifier is now what "sees" the load-the radio sees nothing, so a code is created as the bikes ECM "assumes" the speakers are blown or as the bike says "open"
I have seen this with the HD Screamin Eagle amp as well.--PEZ
Road Captain
Joined: Aug 2007
Posts: 602
Likes: 10
From: Bradenton, FL.
? are the stock speakers the same from 05 to 06 . Dealer sold my friend a set of take offs for his 05 and said the speakers are all the same and I believe he has the 08 speakers. Will they work. Thanks Doc
Tourer
Joined: Aug 2005
Posts: 449
Likes: 0
From:
Hi
98-05 were a 8 ohm design. In 06, HD went to the HK system which is a 2 ohm speaker.
If you put an 8 ohm speaker on the HK radio--everything wil work fine as the 8 ohm load is very "light" compared to the 2 ohm speaker. The only downside is the light load sen by the radio will yield 1/3 the power (on paper)
If you use a 2 ohm speaker on the 98-05 radio--it will perform very bad, and blow fuses or damage the radio
PEZ
98-05 were a 8 ohm design. In 06, HD went to the HK system which is a 2 ohm speaker.
If you put an 8 ohm speaker on the HK radio--everything wil work fine as the 8 ohm load is very "light" compared to the 2 ohm speaker. The only downside is the light load sen by the radio will yield 1/3 the power (on paper)
If you use a 2 ohm speaker on the 98-05 radio--it will perform very bad, and blow fuses or damage the radio
PEZ
Road Master
Joined: Dec 2008
Posts: 872
Likes: 20
From: Niagara Falls Canada
how about 4 ohm
pez I had a 2003 classic and took out the hd speakers and out in a set of jl audio speakers-- they sounded great. I hadnt heard about your hogutunes until a few months ago, dealer had a hogtunes displayy set up. I kept my jl's when I traded the 03 in. I noticed I had to turn the volume up a bit higher to get roughly the same db ouput, but they sounded a lot better and didnt distort when really cranked up. I now have a 2009 and now am wondering after seeing this code thread wheather to put the same speakers into my new bike or shell out money for your hogtune set up. these were about 150 bucks for the jl speakers. Is there a chance I'll have the code problem like the tread starter had. any info on bluetooth set ups for 2009 model you may have. hd doesnt seel the bluetooth option any more and I had located one at a dealer in florida but the 500 clam pricetag is way too high. plus a possible wiring harness change
Trending Topics
Former Sponsor
Joined: Mar 2007
Posts: 733
Likes: 0
Pez is correct Hoffy, I can not find my notes on it, I will call ARC on monday there is a fix for that some bikes throw the code some dont, I will post the fix monday after I talk to ARC
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
btw this thread has some good info to know.