Owners manual
INSTALLATION INSTRUCTIONS
BRAKE CONTROL
SYSTEM CHECK
POTENTIAL CAUSES
OF FAILURE
Scan for helpful
installation tips
DO NOT EXCEED PRODUCT RATING OR TOW VEHICLE'S LAMP LOAD RATING, WHICHEVER IS LOWER
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 BRAKE
CONTROL TESTER
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