RAV4 2WD L4-2.4L (2AZ-FE) (2004)
Oxygen Sensor: Customer Interest
Engine Controls - MIL ON/DTC's P0031/P2238 Set
ENGINE
EG036-04
Title:
M.I.L. "ON" DTC P0031 AND/OR P2238
Models:
'04 RAV4
August 25, 2004
Introduction
Under certain driving conditions, some 2004 model year RAV4 vehicles may exhibit a M.I.L. "ON" condition with one or both of the following DTC's.
^
P0031 - Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)
^
P2238 - Oxygen Sensor Pumping Current Circuit Low (For A/F Sensor) (Bank 1 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.
CAUTION:
Version 11.0a or later Diagnostic Tester software is required.
Applicable Vehicles
All 2004 model year RAV4 vehicles.
Parts Information
NOTE:
Authorized Modification Labels may be ordered in packages of 25 from the Materials Distribution Center (MDC) through Dealer Daily Dealer
Support Materials System.
Warranty Information
Applicable Warranty*:
This repair is covered under the Toyota Specified Major Emission Control Component 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.