Tundra 2WD V8-4.7L (2UZ-FE) (2003)
Trailer Towing Relay: All Technical Service Bulletins
Electrical - Trailer Tow Relay Remains Energized
ELECTRICAL
EL015-03
October 8, 2003
Title:
TRAILER LIGHTS ON IN AUTO-OFF MODE
Models:
'03 Tundra
Introduction
Some 2003 model year Tundra vehicles equipped with Auto-Off headlights AND trailer towing package may experience a condition where the "tow tail
relay" stays energized when the headlight auto-off function is used. This bulletin provides instructions to install a sub-wire harness to correct this
condition. Please follow the repair procedure below.
Applicable Vehicles
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2003 model year Tundra vehicles equipped with Auto-Off headlights and Trailer Towing Package built BEFORE the Production Change Effective
VIN shown below.
Production Change Information
Parts Information
Required SSTs
NOTE:
Additional SSTs may be ordered by calling SPX/OTC at 1-800-933-8335.
Warranty Information
Applicable Warranty:
This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from
the vehicle's in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.