Need help with OEM Honda Trailer Wire Harness

tiki_ink · 12-10-2010, 07:43 PM

#1 Has anyone here installed the OEM Honda Trailer Wire Harness? #2 If so, have anyone had trouble with no brake or turn signal lights after the installation? I have checked and rechecked all connections, schematics, and even tested the circuits. It seems I have tracked the problem the the trailer unit which converts the vehicles turn signals and brake wiring into the 4 pin standard. When I circuit tested the wires going into the unit they were good but I get no signal for the green and yellow wires coming out of the trailer unit. I do have running lights (brown wire) but they bypass the trailer unit as a whole with an inline fuse connected to it. I had Honda send me a replacement trailer unit and it had the same problem. I feel like I am taking crazy pills. Has anyone else had this problem? I bought Honda because it should be plug and play. Apparently this is not the case. Any help would be great. Thanks.

By the way, I have a 2005.

John Gaquin · 12-16-2010, 08:34 AM

Quote:

Originally Posted by tiki_ink

... have anyone had trouble with no brake or turn signal lights after the installation? .... I do have running lights (brown wire)... .

tiki..... I had a dealer install my harness last summer, and had the same problem. check your underhood fuse box. there are two fuses there, #2 and #7, that become part of the trailer lighting system after the harness is installed. that's where my problem was. I had blown the fuse with a faulty 4/7 adapter. no problems since.

btw, while you're working on it, I suggest you get a mountable fuse holder, drill a small hole, and mount that in-line fuse into the rear right-side trim panel. that way, if it does ever blow you won't have to disassemble the car to check or replace it.

good luck!

chuckc1971 · 02-26-2012, 02:41 PM

I have a 2008 and have just installed the OEM factory harness. I have running lights. I have brake lights. I am not getting any turn signals...

I've checked all the connections and fuses both on the new harness and the under hood #2, #7). All are fine. I do have a LED flasher, but don't know if that would make any difference or not.

Anyone have any ideas?

GRNDHOG · 01-25-2013, 05:48 PM

Did you ever get this resolved?

I'm having the same issue. Marker lights work. No brake or turn signals. Checked underhood fuses. All are good.

bmwrider · 01-25-2013, 06:34 PM

There's a recall about the OEM harness. Have the dealer check it out

http://www.elementownersclub.com/for...ad.php?t=74829

GRNDHOG · 01-25-2013, 09:17 PM

Not good for my year. I have an 04

KoolBlue · 01-25-2013, 09:52 PM

Quote:

Originally Posted by bmwrider

There's a recall about the OEM harness. Have the dealer check it out

http://www.elementownersclub.com/for...ad.php?t=74829

The recall in that thread only applies to 2007-2011 models.

Honda made three different harness kits over the years. What applies to one doesn't always apply to the other.

2003-2004
2005-2006
2007-2011

02-26-2012, 02:41 PM	#3
chuckc1971 EOC Rank: Oxygen 2008 4WD EX 5AT Tango Red Pearl (TRP) Join Date: Mar 2010 Location: Louisville, KY Posts: 338	Similar problem I have a 2008 and have just installed the OEM factory harness. I have running lights. I have brake lights. I am not getting any turn signals... I've checked all the connections and fuses both on the new harness and the under hood #2, #7). All are fine. I do have a LED flasher, but don't know if that would make any difference or not. Anyone have any ideas? __________________ OEM splash guards/sidesteps/storage arm rest, Weather Tech visors, AVS Bugflector II, Brockoli bar/Hella Dynaview lights, U-haul hitch, hitch safe, Injen/Flowmaster SS exhaust, Injen CAI, EBC rotors/Hawk pads, 235x70 Michelin A/T2s, front window tint, Shen's turn signal mod, 1-click>all unlock, cleared lights/markers, Osram H4 65/70w headlights, both domes together, full Elemmat kit, Panavise GPS mount, Ultimate Cupholder, Ursa Minor dead pedal, mucho LEDS + Plasti-dip.

01-25-2013, 06:34 PM	#5
bmwrider EOC Rank: Helium 2008 2WD EX MT Alabaster Silver Metallic (ASM) Join Date: Jan 2008 Location: Lakeland, FL Posts: 230	There's a recall about the OEM harness. Have the dealer check it out http://www.elementownersclub.com/for...ad.php?t=74829 __________________ '02 BMW R1150RS '08 SAAB 9-3 Aero Vert '08 Element EX MT - for the dogs '11 SAAB 9-5 Aero - SAAB's finale'

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12-10-2010, 07:43 PM	#1
tiki_ink EOC Rank: Hydrogen 2005 4WD EX-P AT Galaxy Gray Metallic (GG) Join Date: Feb 2008 Location: San Clemente, Ca Posts: 29	Need help with OEM Honda Trailer Wire Harness #1 Has anyone here installed the OEM Honda Trailer Wire Harness? #2 If so, have anyone had trouble with no brake or turn signal lights after the installation? I have checked and rechecked all connections, schematics, and even tested the circuits. It seems I have tracked the problem the the trailer unit which converts the vehicles turn signals and brake wiring into the 4 pin standard. When I circuit tested the wires going into the unit they were good but I get no signal for the green and yellow wires coming out of the trailer unit. I do have running lights (brown wire) but they bypass the trailer unit as a whole with an inline fuse connected to it. I had Honda send me a replacement trailer unit and it had the same problem. I feel like I am taking crazy pills. Has anyone else had this problem? I bought Honda because it should be plug and play. Apparently this is not the case. Any help would be great. Thanks. By the way, I have a 2005. Last edited by tiki_ink; 12-10-2010 at 11:58 PM.

01-25-2013, 05:48 PM	#4
GRNDHOG EOC Rank: Helium 2004 2WD EX AT Sunset Orange Pearl (SOP) Join Date: Oct 2009 Location: Fort Myers, FL Posts: 212	Did you ever get this resolved? I'm having the same issue. Marker lights work. No brake or turn signals. Checked underhood fuses. All are good.

01-25-2013, 09:17 PM	#6
GRNDHOG EOC Rank: Helium 2004 2WD EX AT Sunset Orange Pearl (SOP) Join Date: Oct 2009 Location: Fort Myers, FL Posts: 212	Not good for my year. I have an 04

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