Trailer Wire Harness (AX006-02)

Publication date: 2002-10-18
Reference number: AX006-02

TRAILER WIRE HARNESS

TECHNICAL SERVICE BULLETIN

Reference Number(s): AX006-02, Date of Issue: October 18, 2002

TOYOTA:	2001-2002 4Runner; 2002-2003 Highlander; 2000-2002 Land Cruiser, Tundra; 2001 RAV4; 2000-2003 Sienna; 1996-2002 Tacoma
SECTION:	Accessories
COPYRIGHT:	© 2018 Toyota, USA License Agreement TMS1002

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 low 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 the 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

Vehicle

Model Year

Accessory Kit Part Number

Location

Fuse Capacity

4Runner

2001-2002

08921-35860

Engine Room Junction Block

25A (Towing)

Highlander

2002-2003

08921-48040

Engine Room Junction Block

20A (Towing)

Land Cruiser

2000⁽¹⁾

08921-60820

LH Cowl Junction Block (LH Kick Panel)

15A (Tail)

15A (Stop)

Land Cruiser

2001-2002

08921-60840

LH Rear Quarter Panel

30A

RAV4

2001

08921-42860

RH Rear Quarter Panel

In-Line

5A (Tail)

5A (Stop)

Sienna

2000-2003

08921-08860

Rear Hatch Scuff Plate

In-Line

5A (Tail)

5A (Stop)

5A (LH Turn)

5A (RH Turn)

Tacoma

1996-2001

08921-04810-AA

Regular & Double Cab: LH Rear Cab Back Panel

Xtracab: Jack Storage Compartment

In-Line

5A (Tail)

5A (Stop)

5A (LH Turn)

5A (RH Turn)

Tacoma

2002

08921-04860

Regular & Double Cab: LH Rear Cab Back Panel, Xtracab: Jack Storage Compartment

In-Line, 5A (Tail), 5A (Stop), 5A (LH Turn), 5A (RH Turn)

Tundra

2000-2002

81985-35060

Engine Room (Battery & Terminal)

30A

⁽¹⁾	Applies to 2000 model year vehicles produced on or after VIN JT3HT05JXY0094690.

WARRANTY INFORMATION

OP Code	Description	Time	OFP	T1	T2
N/A	Not Applicable to Warranty	---	---	---	---

WIRE HARNESS FUSE LOCATION

Fig 1: Wire Harness Fuse Location: 4Runner, Highland, and Land Cruiser

Fig 2: Wire Harness Location: RAV4, Sienna, Tacoma, and Tundra

TROUBLESHOOTING PROCEDURE

Perform the following procedure if there is any lamp malfunction. See Fig 3 and 4 .

CAUTION: Ensure that the lamp switch is OFF before taking measures or checking.

Fig 3: Troubleshooting Chart 1: Land Cruiser ('00), RAV4, Sienna, & Tacoma

Fig 4: Troubleshooting Chart 2: 4Runner, Highlander, Land Cruiser ('01-'02), & Tundra