2010 Santa Fe Hatch Light Mod - Page 4 - Hyundai Forums : Hyundai Forum
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post #31 of 35 (permalink) Old 02-26-2017, 02:45 PM
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Jeep Compass AWD 2009 Hyundai SF AWD 2008
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Tail Lights and reflector used.

Well my hatch has two contacts as well as the wires as per now attached photo. As for the lower reflector the back i curved slightly and looking from the front there is a an interior lens panel as well. This may not be as clear in the photo but looking at anyones rear reflector it can be seen. Any depth of a light would not be able to be Gerry Rigged and I recall now why I gave up on it.

Someone putting me to work on the cold day. Oh Well....LOL
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File Type: jpg 20170226_143415_resized.jpg (184.0 KB, 12 views)
File Type: jpg 20170226_143334_resized.jpg (246.1 KB, 11 views)
File Type: jpg 20170226_143619_resized.jpg (165.8 KB, 13 views)

2008 Sante Fe AWD Limited
3.3L Engine 88,xxxkm @ purchase
Currently 135,000km Nov. 2016
Bright Yellow 893 Fog Lights
(South of Belleville)
Prince Edward County, ON, Canada
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post #32 of 35 (permalink) Old 02-27-2017, 04:00 AM Thread Starter
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Tripplec, your wiring looks to be what has been stated as correct for the hatch lamp to illuminate the brake light on '07-'09. Mash the pedal to see brakes on the body lamp and hatch lamp. It does NOT do this on the 10-12 years. This post is trying to figure out how to make it work. At one time it was a simple swap, put the '09 wires on the 10. But they have changed the "harness" and now it doesn't work.
Unable to "see" the bumper reflector, it sure looks like there is room there to make a hole and snap in a connector/bulb. Replacement reflectors with LED run about $69. Not too bad.
Looking at my '10 hatch connector, there seems to be a vacant "slot" where the 2nd brass contact should be. But it is molded in, I see no way to insert another brass contact, nor have a wire connected to it. No luck yet finding a dual contact/3 wire connector that fits the Hyundai hole. This is quite a challenge to figure out.
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post #33 of 35 (permalink) Old 03-12-2017, 06:47 PM Thread Starter
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Persistence, and a gamble with this brake light mod. BINGO! LoveMySantaFe discovered this mod back in the old days when correct parts were available. Then Hyundai changed the game, and the part. We can't sit here and let him have the only 2010 Santa Fe with brake lights in the hatch. The hunt was on.
I ordered a pair of dual contact/3 wire sockets. Hyundai has 3 "tabs" that hold the socket in place when twisted in. The new socket has 4 "tabs". Simple, cut one off. Remove the one by the red - blue wires. See the picture. Now having 3 "tabs" the new socket twisted right in the hole. It also has a rubber seal to keep moisture out. It takes the dual filament 1157 bulb, which is already in the car.
Not done yet. (Cold out). Next is to identify which color wire illuminates the bright filament for the brake. I believe black/green is the brake light power on the Hyundai harness, and green is the tail light. Black is ground on plastic fixtures. Make the connections and it should work. You'll have to wait for success so I can do a picture with lamps on.
There is no part number given for these sockets. Here is the link to where ordered, USA. The buy it now price beat all others. You'll see them cheaper, but note their shipping is from China, not USA. 1157 2057 2357 Replacement Plug Sockets Extened Wiring Harness Tail Brake Light | eBay
Good luck.
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post #34 of 35 (permalink) Old 03-13-2017, 06:28 AM
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Excellent! Splices are next. Keep us informed of your progress.

I used 2357 bulbs in the outboard (fender) lights because the brake/turn filament lights at ~500 lumens vs. the ~400 lumens of the standard 1157 units. The tradeoff for more light is slightly higher current draw and slightly shorter filament life. I've been hit from behind before and found it a less than amusing experience. Attracting the attention of the zero behind me who is texting in traffic is what's needed.


Paw-paw Don, y'all
Favorite saying: "One need never apologize for exercising the Golden Rule."
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post #35 of 35 (permalink) Old 03-20-2017, 08:46 PM Thread Starter
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Finally better weather to proceed. All wiring is in place on the vehicle connector, green is the tail light, green/black is power to the brake light. On the new socket, blue is the tail light, red is the brake light. I cut off the old socket then soldered and shrink wrapped the 3 connections. Swapped the perfectly good and adequate 1157 bulb. Plugged everything back in. Now have brake lights on the hatch lamps. Or 4 total, not just two. A simple and useful modification to having the rear being seen. If you can splice a few wires, get the sockets and do it. Here's the pix.
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