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Trailer Wiring Harness for a 2016 Toyota Highlander  

Question:

My question is in regards these two items part # 56042 and part # 118449 for my 2016 Toyota Highlander LE AWD V6 . My question is which harness will I need since Toyota made all 2016 Highlanders come with a standard towing package on all V6 modelsHeavy-duty radiator with engine oil cooler, 200-watt fan coupling, supplemental transmission oil cooler and 150-amp alternator, V6 Only I am not sure which one to order along with my Curt trailer hitch. Please advise and thank you

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Expert Reply:

If your 2016 Toyota Highlander came with the factory tow package, then you would just need # 56042. You can test to see if the connector this plugs into has power using a circuit tester such as # PTW2993. Have someone sit in the cab and go through the lighting functions while you test the factory connector where # 56042 plugs into (see instructions). If it has power, then 56042 is all you need.

If it does not have power, then you would need the alternate harness # C56217.

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Michael H

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