Installation Guide

BRAKE CONTROL
SYSTEM CHECK
NOTICE:
POTENTIAL CAUSES OF FAILURE
Scan for helpful
installation tips
Step 1
Plug the brake control tester into the 7-way trailer connector.
Step 2
Check the voltage at the 7-way connector:
A. To check the vehicle battery voltage at the 7-way,
set the right switch to the 'battery voltage' position.
B. To check the trailer brake voltage at the 7-way,
set the right switch to the 'brake voltage' position.
Step 3
Select the number of axles by using the left switch.
Step 4
Perform a function test of the left, right,
stop, tail and reverse lights, if applicable.
Step 5
Perform a function test of the brakes using the brake control:
Configure the brake control to its maximum gain setting,
activate the manual control and verify it is at maximum output.
A. The tester should show a brake voltage greater than 9V.
B. The current should read greater than 10A for
a 2 axle load or greater than 15A for a 3+ axle load.
Cause 1
Incorrect fuse value or open fuse.
Cause 2
Incorrect or inadequate wiring of the 7-way
or brake control power wire to the vehicle battery.
Cause 3
Incorrect or inadequate wiring of the
7-way or brake control ground wire.
Cause 4
Corroded, dirty or damaged wiring
of the 7-way connector and terminals.
Cause 5
Incorrect wiring of 7-way
connector wiring and terminals.
Cause 6
Defective brake control.
7-WAY BR AKE
CONTROL TESTER
INSTALLATION INSTRUCTIONS
WARNING: DO NOT EXCEED PRODUCT RATING OR TOW VEHICLE LAMP LOAD RATING, WHICHEVER IS LOWER
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