MIL 'ON' DTC P1133
ENGINEEG004-99
September 10, 1999
Title:
M.I.L."ON" DTC P1133
Models:
'99 ES 3OO
Introduction
Under certain driving conditions, some 1999 model year ES 300's may exhibit a M.I.L. 'ON" DTC P1133. An improved Air/Fuel Ratio Sensor has been developed to address this condition.
Production Change Information
"*" May be any number from 0 to 9 or an X.
Parts Information
PREVIOUS PART NUMBER CURRENT PART NUMBER PART NAME
89467-41020 89467-41021 Air/Fuel Sensor (ES 300)
Repair Procedure
^ Should a M.l.L. "ON" condition with DTC P1133 be encountered, perform diagnostic procedures as described in the Repair Manual.
^ If the problem source cannot be identified after checking all affected areas according to the Repair Manual, the cause may be an Air/Fuel Ratio Sensor malfunction. In this case, replace the Air/Fuel Ratio Sensor with the updated part.
^ If the Exhaust Manifold threads are damaged by removal of sensor, they can be repaired by the proper use of a M 18 X 1.5 Tap.
Warranty Information
Applicable Warranty*:
This repair is covered under the Lexus Basic Warranty. This warranty is in effect for 48 months or 50,000 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.
NOTE:
Please enter the DTC P1133 in the Condition/Cause/Remedy Section when applying for Warranty Reimbursement.