Question about 2008 Mercury Mariner

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I bough tmy mariner used with a hitch and wiring harness already installed from the previous owner. i plugged it into a trailer and none of the lights came on. i then plugged it into another trailer and the trailer lights came on minus the use of the hazards, right turn, and brake lights. i looked at the box under the bumper and found that the red wire has been cut. i looked around and found nowhere in sight a red wire. long story short, where does the red wire go to? and could i splice it together myself?

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Try http://www.etrailer.com/faq-wiring.aspx. Sounds like you need to replace the converter.

Posted on Jan 29, 2010

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Posted on Jan 02, 2017

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TO: ALL TOYOTA DEALER PRINCIPALS,
SERVICE MANAGERS, PARTS MANAGERS
SUBJECT: SPECIAL SERVICE CAMPAIGN 10H
(2000 TUNDRA AND 1999 - 2000 TACOMA TRAILER TOWING WIRE HARNESS
CONVERTER REPLACEMENT)
Toyota will initiate a Special Service Campaign to replace the Toyota Trailer Towing Wire Harness
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In the case of the Tundra, the circuitry utilized in the converter was inadequate to properly manage
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• The first phase will be launched in late August and involve vehicles equipped with port
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to be launched in early September.
We have attached copies of the owner notification letters for your reference.
If you are contacted by an owner of an involved vehicle, who has not yet received a notification,
please verify eligibility through TDN or TIS, inspect the vehicle to assure it is equipped with the
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1 Answer

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