Roadmaster 751428 Installation Instructions Download Page 2

Stop Light Switch

Installation Instructions

ROADMASTER, Inc. • 6110 N.E. 127th Ave. • Vancouver, WA 98682 • 800-669-9690 • Fax 360-735-9300 • roadmasterinc.com

I

nstall this kit if the brake lights do not function when the 
ignition is turned to the “tow” position, or if the vehicle is 

equipped with a “retained accessory power” feature — with 
this feature, the vehicle’s electronics continue to function 
normally for about ten minutes after the ignition key is 
turned off. Then the electronics will no longer function, 
which shuts off power to the stop light switch.

Install the stop light switch

 1.

  Thread the first adjusting nut (Figure A) through the 

threaded portion of the stop light switch, with the open side 
of the nut facing the terminals on the stop light switch.

 2.

  Slide the threaded side of the stop light switch through 

the bracket.
 

3.

  Thread the second adjusting nut through the threaded 

portion of the stop light switch, with the open side of the 
nut facing the white plunger on the stop light switch. (Do 
not fully tighten the nut until the switch is installed.)
 

4.

  With the stop light switch in position, attach the bracket 

— refer to the vehicle-specific mounting instructions that 
are included with this kit.
 

5.

  With the brake arm (Figure A) fully retracted, turn the

All specifications are subject to change without notice.

Figure A

85-3483-05    02-13

adjusting nuts until the white plunger at the end of the 
stop light switch is completely depressed.

CAUTION

The stop light switch must be installed as directed 

above…

 

The plunger must be completely depressed against 

the brake arm. Otherwise, it may cause a false brake 
light signal at the monitor.
•  The brake arm must be fully retracted when the stop 
light switch is installed. If it is not, the brake pedal 
may depress the towed vehicle’s brakes continuously, 
which will cause excessive brake wear, brake system 
damage or other consequential, non-warranty dam-
age.

 6.

  Using the included spade connectors, connect the red 

and green wires to the stop light switch terminals (Figure 
A).

 

 7.

  For Even Brake 

only

 — connect the green wire to the 

terminal marked “1” on the Even Brake ICX transmitter

 

continued on next page

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