Matrix L4-1.8L (1ZZ-FE) (2008)
Engine Control Module: All Technical Service Bulletins
Engine Controls - MIL ON/DTC P0456 Stored
T-SB-0235-09
Rev1
July 28, 2009
MIL "ON" DTC P0456
Service Category
Engine/Hybrid System
Section
Engine Control
Market
USA
Applicability
NOTE
This TSB applies to 2005 - 2006 MY Corolla and Matrix vehicles that are currently equipped with a 2007 MY ECM.
TSB REVISION NOTICE
^
September 24, 2009 Rev1:
Step 3 has been added to the Repair Procedure.
Any previous printed versions of this service bulletin should be discarded.
Introduction
Some 2007 - 2008 model year Corolla and Matrix vehicles may exhibit a MIL "ON" condition with Diagnostic Trouble Code (DTC) P0456 -
Evaporative Emission Control System Leak Detected (Very Small Leak). The Engine Control Module/ECM (SAE term: Powertrain Control
Module/PCM) logic has been modified to reduce the possibility of this condition occurring. This bulletin also applies to 2005 - 2006 model year Corolla
and Matrix vehicles which were previously repaired using a 2007 model year ECM. Use the following repair procedure to address this condition.
Warranty Information
^ This repair is covered under the Toyota Federal Emission 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 occurrence of the specified condition described in this bulletin.