Will Brake Controller Need to be Recalibrated After Vehicle Battery is Replaced?

Question:

Battery died and was changed do I need to set up brake assist module settings again??

asked by: Jay J

Expert Reply:

Yes, you will need to redo the setup procedure that's addressed in the linked operating instructions. No worries, though. The procedure is pretty easy.

Here's a brief outline of the procedure....

Once the control has been securely mounted within the 0 to 70-degree range, it is necessary to set the power
needed to stop the trailer during a braking event.

• Connect trailer to tow vehicle.

• With engine running hold manual full left and set Power Knob to indicate 6.0

• Drive tow vehicle and trailer on a dry level paved surface at 25 mph and fully apply manual knob.

If trailer brakes lock up, turn power down using power knob. If braking was not sufficient, turn power up using power knob.

• Repeat Step (3) until power has been set to a point just below wheel lock up or at a sufficient force as to
achieve maximum braking power.

• Using the brake pedal, make a few low speed stops to check the power setting. Trailer braking is
initiated and terminated via the stoplight switch.

I've also linked to a video showing how the Tekonsha # TK90160 Primus brake controller works.