Weight Rating and Light Wiring for Lighted Westin Running Boards 27-0005-2165  

Question:

Expert Reply:

The Westin Lighted Running Boards part # 27-0005-2165 that you referenced are a confirmed fit for your 2017 Toyota 4Runner so they would be a great choice. These have a 300 lb weight capacity.

Here's the instructions:

Determine whether your vehicle has a positive or negative switching courtesy system or an auxiliary light source (most Fords).
Obtain an accurate wiring diagram for your vehicle's courtesy light system.
For positive and negative switching:
Locate a pass-through point (usually under carpet at driver side door sill) for the wire harness. Locate main courtesy wire
(usually wire lead to dome light). NOTE: If you do not use the main courtesy wire, lights will only function when one door is
open. Route wire harness so that the 2 female connections (from step board) are nearest to pass thru point.*Connect
opposite step board lead to either connection. Connect the splicing lead to remaining female socket and route one wire
thru pass thru point. SEE FIGURE 9.

expert reply by: Jameson C

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