ES 330 V6-3.3L (3MZ-FE) (2004)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine Controls - MIL ON/O2 Sensor DTC's Set
ENGINE
EG003-05
Title:
M.I.L. "ON" DTC P0031, P0051, P2238, AND/OR P2241
Models:
'04 - '05 ES 330
February 16, 2005
Introduction
Under certain driving conditions, some 2004 and 2005 model year ES 330 vehicles may exhibit a M.I.L. "ON" with at least one of the following DTCs:
^ P0031 (Oxygen Sensor Heater Control Circuit Low [Bank 1, Sensor 1])
^ P0051 (Oxygen Sensor Heater Control Circuit Low [Bank 2, Sensor 1])
^ P2238 (Oxygen Sensor Pumping Current Circuit Low (for A/F Sensor) [Bank 1, Sensor 1])
^ P2241 (Oxygen Sensor Pumping Current Circuit Low (for A/F Sensor) [Bank 2, Sensor 1])
The A/F sensor manufacturing process and the Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic have been modified
to improve these conditions.
NOTE:
^
Version 12.01a or later Diagnostic Tester software is required to perform this procedure.
^
Before proceeding, verify the ECM (PCM) calibration has NOT been updated by checking for the Authorized Modifications Label (shown in
step 2 of the Repair Procedure).
Applicable Vehicles
^
2004 model year ES 330 vehicles.
^
2005 model year ES 330 vehicles produced BEFORE the Production Change Effective VIN shown below.
Production Change Information
Warranty Information
Applicable Warranty*:
This repair is covered under the Lexus Federal Emissions Warranty. This warranty is in effect for 96 months or 80,000 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.