Trailer Harness - Updated Design/Diagnostics

ACCESSORIES
AX006-02

October 18, 2002

Title:
TRAILER WIRE HARNESS

Models:
4Runner, Highlander, land Cruiser, RAV4, Sienna, Tacoma & Tundra

Introduction

Beginning in 2000, the accessory trailer wire harness supplier was changed and a new design was adopted which incorporated in-line fuses in the tow wire harness in addition to the vehicle fuse. This bulletin identifies the fuse location to supplement dealer diagnostics troubleshooting. In the future please reference the accessory trailer wire harness Owner's Guide for the vehicle specific diagnostic procedures. As a general note please place the towing wire harness Owner's Guide in glove box after every DIO installation.

Applicable Vehicles
^ 4Runner, Highlander, Land Cruiser, RAV4, Sienna, Tacoma, and Tundra vehicles using the Accessory Towing Receiver Hitch and factory Towing Receiver Hitch option. (See table below for applicable model years.)





Accessory Wire Harness Kit Information





Warranty Information








Wire Harness Fuse Location

Troubleshooting Procedure








Perform the procedure shown if there is any lamp malfunction.