Q.) No "C" on the display with the trailer connected.
A.) The Pilot® has to have a complete circuit to ground through the brake magnets on the Blue wire to turn the "C" on the display. Possible Causes:
· No trailer connected.
· No power on Black wire.
· Bad ground on White wire.
· Open in brake circuit wire.
· Truck and Trailer miswired.
· Power back feed on brake circuit (Blue wire).
· Faulty control.
Q.) Will the Pilot® work with Electric-Hydraulic Brakes?
A.) Tekonsha® brake controls are designed to operate electric brakes that are activated by magnets. They have not been tested for the use on electric/hydraulic brake systems. Please contact the manufacturer of the hydraulic control unit for their recommendations.
Q.) "C" is on all the time, even without the trailer connected.
A.) The Pilot® is detecting a complete circuit to ground on the Blue wire. Possible Causes:
· Short to ground on brake circuit wire (Blue wire).
· Corrosion in connector at back of tow vehicle.
· Faulty control.
Q.) "C" goes out on the display when applying the brake pedal.
A.) Possible Causes:
· Power back feed on brake circuit (Blue wire) from brake light circuit.
Q.) The control only puts out 9-volts with the gain set to max and no trailer connected.
A.) Normal wih no trailer connected or no electrical load.
Q.) The display shows "0" with the pedal depressed or the manual activated with the trailer connected.
A.) Possible Causes:
· Short to ground on brake circuit wire (Blue wire).
· Corrosion in connector at back of tow vehicle.
· Gain set to minimum.
· Faulty control.
Q.) The display will only show 5.7 with the gain set at maximum.
A.) Possible Causes:
· Poor connection to ground on White wire.
· Faulty control.
Q.) If you need further assistance or are experiencing a concern not listed here.
A.) Please call Tech Support at 888-785-5832 or Go to the Contact Us Link on this website.