INSTALLING THE LIGHTS & WIRING HARNESS TO YOUR STEP BOARDS (FOR LIGHTED VERSION):
STEP 6
:
A three piece wiring harness is included with the Lighted Step Board. The harness includes four (4)
light sockets and three plugs. Carefully plan a wire route from the right side Step Board to the left. Then choose
a pass-through point (floor board to inner cab) for the wire harness. WESTIN RECOMMENDS YOU USE A
PROFESSIONAL TO INSTALL THE WIRING HARNESS—SEE STEPS 12-16 BELOW.
STEP 7
: Attach wire harness and lights. Be sure all rubber seals are in place before installation. The rubber
grommet around the red and blue wires going into rear of sockets should be completely inserted and recessed
about 1/4”.
NOTE: Ensure the longevity of your lights by removing the bulb and placing a small amount of
white grease into the sockets and replacing the bulb. Place a small amount of RTV Silicone where the
wires go into the socket. This keeps the sockets dry and adds to longevity.
Screw lights into each end of
the board and run conduit in center slot of aluminum base board. This will hold the harness in place.
STEP 8
: Mount Step Boards to Brackets by sliding (4) four of the 5/16” x ¾” Square Head Bolts into the
two outside slots in the aluminum support plate and (4) four in the inner most slot.
STEP 9:
Position the Square Headed Bolts on the aluminum support plate so that there are (2) two Bolts
over each Bracket location. Place the Step Board over the Brackets and pass the Bolts through the Brackets.
STEP 10:
Start the Nylock Nuts and the SAE Washers on the Square Headed Bolts. Leave loose at this
time.
STEP 11:
Center the Step Boards from wheel well to wheel well and position for height. Set all final
positions for height, depth and center. Tighten all the remaining hardware and test the Step Boards for
attachment. This concludes the installation procedure for the Step Boards without lights. For the Lighted
version, proceed to STEP 12.
STEP 12: GENERAL TIPS FOR WIRING HARNESS INSTALLATION. PLEASE NOTE: The light wiring
harness installation requires splicing into your vehicle’s electrical system. WESTIN HIGHLY
RECOMMENDS THAT YOU USE A PROFESSIONAL TO INSTALL THE WIRING HARNESS FOR THE
LIGHTED VERSION.
STEP 13
: After choosing a a pass through point for the cab harness (STEP 6), follow this sequence: Route
long lead harness to short lead harness and plug connectors securely. Note: Avoid areas of excess heat,
vibration, pinch or rotation when securing harness to vehicle.
STEP 14
: Plug open-ended connection into unused connection. Note: Either connector on short lead
board harness will work. Route open ended wire harness through truck cab. Note: Find the closest position
to door light switch lead wire. Seal pass-through hole. Use silicone or permanent sealer.
STEP 15
: Connect positive and negative lead wires to vehicle sources (dome light or courtesy light under
dash). Use vehicle door switch for ground lead source and appropriate positive lead for supply. ALWAYS
USE A FUSED POSITIVE (+) POWER SOURCE.
STEP 16
: Test circuit for proper function and connection before tape sealing all exposed wire.
INSTALLATION IS COMPLETE.
THANK YOU FOR CHOOSING WESTIN!
Westin Automotive Products, Inc. • Irwindale, CA • (800) 345-8476 • Fax (626) 338-1630
2#75-0279, Page 2 of 2
