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BK Light on Curt 7 Way Connector with Tester Lights Always on with Curt Spectrum Brake Controller

Question:

2013 Toyota Sienna xle. I have a spectrum 51170 brake controller installed along with the Curt 57674 dual output 7- way. Is there a reason why the bk light on the 7 spin stay on dimly lit? And will it affect or drain my battery? Thank you

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Expert Reply:

Since you are using the Curt Spectrum # C51170, which is a proportional brake controller, there will always be a very small voltage from the controller sent to the 7-way connector. This is because the controller is always checking to see if a trailer is connected.

The current draw from an LED is quite small (a tiny fraction of an amp) so this does not pose any concerns for battery drain. Your Curt # C57674 7-way is supposed to function in this manner.

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