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NO CURRENT AT TRAILER HITCH

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Old 11-26-2018, 03:35 AM
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2013 ML 350 BT
NO CURRENT AT TRAILER HITCH
ML 350 BT 2013
No power@ trailer hitch socket. Checked all fuses, all OK
Is there a relay that switches the circuit?

thanks
lou
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Old 12-23-2018, 02:03 PM
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Ml bluetec
Originally Posted by Lmastove
ML 350 BT 2013
No power@ trailer hitch socket. Checked all fuses, all OK
Is there a relay that switches the circuit?

thanks
lou
if you got one factory installed it may need to be enabled in the ecu by mechanic
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Old 12-24-2018, 02:30 AM
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If you're "Tester" only has LED light and no pre-load - it may well not show current.

On your 2013 there needs to be a resistive load .... you can use this adapter with LED trailer lights:

https://www.etrailer.com/Wiring/Tow-Ready/TR20141.html
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