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What to do with Blue Wire with Install Harness # ETBC7L with Curt Echo Mobile C51180


Hello My vehicle already had a 4-pin trailer wiring harness installed, so I bought the ETBC7L 4 to 7-pin kit to use with a Curt Echo Mobile Brake Controller Curt part #51189. What do I do with the blue wire on the ETBC7L in this case? Is it simply not used, since the brake controller is downstream? Thanks,


Expert Reply:

When using the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation # ETBC7L to install the Curt Echo Mobile part # C51180 you can just tape up the blue wire of the adapter as it would not be used.

expert reply by:
Jameson C

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