Sienna FWD V6-3.3L (3MZ-FE) (2006)
Oxygen Sensor: All Technical Service Bulletins
Engine Controls - MIL ON/DTC's P0171/P0174/P2195/P2197
ENGINE
EG059-05
Title:
M.I.L. "ON" DTC P0171, P0174, P2195, OR P2197
Models
'05 - '06 Sienna
November 16, 2005
Introduction
Under certain driving conditions, some 2005 and 2006 model year Sienna vehicles may exhibit a M.I.L. "ON" condition with at least one of the
following DTCs:
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P0171 (System Too Lean [Bank 1])
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P0174 (System Too Lean [Bank 2])
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P2195 (Oxygen [A/F] Sensor Signal Stuck Lean [Bank 1, Sensor 1])
^
P2197 (Oxygen [A/F] Sensor Signal Stuck Lean [Bank 2, Sensor 1])
The Air Fuel (A/F) sensor manufacturing process has been improved to correct this condition. The following repair procedures should be used to
properly diagnose and repair the affected vehicles.
Applicable Vehicles
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2005 - 2006 model year Sienna vehicles produced BEFORE the Production Change Effective VINs shown below.
Production Change Information
Parts Information
Warranty Information
Applicable Warranty*:
This repair is covered under the Toyota Federal Emission Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first,
from the vehicle's in-service date. For California specification vehicles sold, registered, and operated in California, Maine, Massachusetts, and Vermont,
this repair is covered under the California Emission Warranty, which is 36 months or 50,000 miles, whichever occurs first, from the vehicle's in-service
date.